
Seminar Pierre Raphael Course (UCB)  On singularity formation in nonlinear PDE’s: a constructive approach
Updated on Sep 03, 2015 04:27 PM PDT 
Seminar Research Minicourse
Created on Sep 03, 2015 03:41 PM PDT 
Seminar Research Seminar: Type one and type two blowup for some dispersive equations
Updated on Nov 25, 2015 12:28 PM PST 
Seminar Research Seminar: The Atlas model, in and out of equilibrium
Created on Nov 25, 2015 12:30 PM PST 
Seminar Wave Turbulence Research Group
Created on Sep 23, 2015 01:53 PM PDT 
Seminar Pierre Raphael Course (UCB)  On singularity formation in nonlinear PDE’s: a constructive approach
Created on Sep 03, 2015 04:24 PM PDT 
Seminar Graduate Student Lunch Seminar
Created on Sep 03, 2015 04:04 PM PDT 
Seminar UCB Mathematics Department Colloquium
Created on Sep 01, 2015 04:41 PM PDT 
Seminar Postdoc Symposium (Part II)
Created on Sep 03, 2015 03:14 PM PDT 
Seminar Postdoc Symposium (Part I)
Created on Sep 03, 2015 03:13 PM PDT 
Workshop Bay Area Differential Geometry Seminar (BADGS) Winter 2015
Organizers: David Bao (San Francisco State University), Joel Hass (University of California, Davis), LEAD David Hoffman (Stanford University), Rafe Mazzeo (Stanford University), Richard Montgomery (University of California, Santa Cruz)The Bay Area Differential Geometry Seminar meets 3 times each year and is a 1day seminar on recent developments in differential geometry and geometric analysis, broadly interpreted. Typically, it runs from midmorning until late afternoon, with 34 speakers. Lunch will be available and the final talk will be followed by dinner.
Updated on Oct 23, 2015 02:20 PM PDT 
Seminar Pierre Raphael Course (UCB)  On singularity formation in nonlinear PDE’s: a constructive approach
Created on Sep 03, 2015 04:25 PM PDT 
Seminar Research Minicourse
Created on Sep 03, 2015 03:43 PM PDT 
Seminar Wave Turbulence Research Group
Created on Sep 23, 2015 01:55 PM PDT 
Seminar Research Seminar
Created on Sep 03, 2015 03:55 PM PDT 
Seminar UCB Mathematics Department Colloquium
Created on Sep 01, 2015 04:43 PM PDT 
Seminar Pierre Raphael Course (UCB)  On singularity formation in nonlinear PDE’s: a constructive approach
Created on Sep 03, 2015 04:26 PM PDT 
Seminar Graduate Student Lunch Seminar
Created on Sep 03, 2015 04:06 PM PDT 
Seminar Postdoc Symposium (Part I)
Created on Sep 03, 2015 03:15 PM PDT 
Seminar Postdoc Symposium (Part II)
Created on Sep 03, 2015 03:16 PM PDT 
Seminar Research Minicourse
Created on Sep 03, 2015 03:44 PM PDT 
Seminar Wave Turbulence Research Group
Created on Sep 23, 2015 01:58 PM PDT 
Seminar Research Seminar
Created on Sep 03, 2015 03:56 PM PDT 
Seminar Graduate Student Lunch Seminar
Created on Sep 03, 2015 04:07 PM PDT 
Seminar Postdoc Symposium (Part I)
Created on Sep 03, 2015 03:17 PM PDT 
Seminar Postdoc Symposium (Part II)
Created on Sep 03, 2015 03:18 PM PDT 
Program Differential Geometry
Organizers: Tobias Colding (Massachusetts Institute of Technology), Simon Donaldson (Imperial College, London), John Lott (University of California, Berkeley), Natasa Sesum (Rutgers University), Gang Tian (Princeton University), LEAD Jeff Viaclovsky (University of WisconsinMadison)Differential geometry is a subject with both deep roots and recent advances. Many old problems in the field have recently been solved, such as the Poincaré and geometrization conjectures by Perelman, the quarter pinching conjecture by BrendleSchoen, the Lawson Conjecture by Brendle, and the Willmore Conjecture by MarquesNeves. The solutions of these problems have introduced a wealth of new techniques into the field. This semesterlong program will focus on the following main themes:
(1) Einstein metrics and generalizations,
(2) Complex differential geometry,
(3) Spaces with curvature bounded from below,
(4) Geometric flows,
and particularly on the deep connections between these areas.Updated on Apr 21, 2015 03:40 PM PDT 
Workshop Connections for Women: Differential Geometry
Organizers: Christine Breiner (Fordham University), LEAD Natasa Sesum (Rutgers University)The purpose of this meeting is to help junior female researchers to become familiar with the focus topics of the main MSRI program, and also for the junior researchers to have an opportunity to get acquainted with more senior women researchers in differential geometry.
This workshop is open to all mathematicians.
Updated on Sep 04, 2015 09:27 AM PDT 
Workshop Introductory Workshop: Modern Riemannian Geometry
Organizers: LEAD Tobias Colding (Massachusetts Institute of Technology), John Lott (University of California, Berkeley), Jeff Viaclovsky (University of WisconsinMadison)The week will be devoted to an introduction to modern techniques in Riemannian geometry. This is intended to help graduate students and younger researchers get a headstart, in order to increase their participation during the main semester programs and research lectures. To increase outreach, the week will focus on Riemannian geometry and should be largely accessible. Some minicourses on topics of recent interest will be included. The workshop will also have semiexpository lectures dealing with aspects of spaces with curvature bounded from below, since such spaces will occur throughout the semester. We expect that many Berkeley mathematicians and students will participate in the introductory workshop.
Updated on Aug 25, 2015 05:05 PM PDT 
Workshop Kähler Geometry, Einstein Metrics, and Generalizations
Organizers: Olivier Biquard (École Normale Supérieure), Simon Donaldson (Imperial College, London), Gang Tian (Princeton University), LEAD Jeff Viaclovsky (University of WisconsinMadison)The workshop will integrate elements from complex differential geometry with Einstein metrics and their generalizations. The topics will include
 Existence of KählerEinstein metrics and extremal Kähler metrics. Notions of stability in algebraic geometry such as Chow stability, Kstability, bstability, and polytope stability. KählerEinstein metrics with conical singularities along a divisor.
 CalabiYau metrics and collapsed limit spaces. Connections with physics and mirror symmetry.
 Einstein metrics and their moduli spaces, εregularity, noncompact examples such as ALE, ALF, and PoincaréEinstein metrics. Generalizations of the Einstein condition, such as Bachflat metrics and Ricci solitons.
 SasakiEinstein metrics and metrics with special holonomy. New examples and classification problems.
Updated on Sep 15, 2015 03:05 PM PDT 
Workshop Hot Topics: Cluster algebras and wallcrossing
Organizers: LEAD Mark Gross (University of Cambridge), Paul Hacking (University of Massachusetts, Amherst), Sean Keel (University of Texas), Lauren Williams (University of California, Berkeley)Cluster algebras were introduced in 2001 by Fomin and Zelevinsky to capture the combinatorics of canonical bases and total positivity in semisimple Lie groups. Since then they have revealed a rich combinatorial and grouptheoretic structure, and have had significant impact beyond these initial subjects, including string theory, algebraic geometry, and mirror symmetry. Recently Gross, Hacking, Keel and Kontsevich released a preprint introducing mirror symmetry techniques into the subject which resolved several longstanding conjectures, including the construction of canonical bases for cluster algebras and positivity of the Laurent phenomenon. This preprint reformulates the basic construction of cluster algebras in terms of scattering diagrams (or wallcrossing structures). This leads to the proofs of the conjectures and to new constructions of elements of cluster algebras. But fundamentally they provide a new tool for thinking about cluster algebras.
The workshop will bring together many of the different users of cluster algebras to achieve a synthesis of these new techniques with many of the different aspects of the subject. There will be lecture series on the new techniques, and other lecture series on connections with Lie theory, quiver representation theory, mirror symmetry, string theory, and stability conditions.Updated on Nov 09, 2015 09:51 AM PST 
Workshop Geometric Flows in Riemannian and Complex Geometry
Organizers: Tobias Colding (Massachusetts Institute of Technology), LEAD John Lott (University of California, Berkeley), Natasa Sesum (Rutgers University)The workshop will concentrate on parabolic methods in both Riemannian and complex geometry. The topics will include
 Ricci flow. Analytic questions about Ricci flow in three dimensions. Possible applications of Ricci flow to 4manifold topology. Ricci flow in higher dimensions under curvature assumptions.
 KählerRicci Flow. Applications to the KählerEinstein problem. Connections to the minimal model program. Study of KählerRicci solitons and limits of KählerRicci flow.
 Mean curvature flow. Singularity analysis. Generic mean curvature flow.
 Other geometric flows such as Calabi flow and pluriclosed flow.
Updated on Sep 16, 2015 12:34 PM PDT 
Summer Graduate School Seminaire de Mathematiques Superieures 2016: Dynamics of Biological Systems
Organizers: Thomas Hillen (University of Alberta), Mark Lewis (University of Alberta), Yingfei Yi (University of Alberta)The purpose of this summer school is to focus on the interplay of dynamical and biological systems, developing the rich connectionbetween science and mathematics that has been so successful to date. Our focus will be on understanding the mathematical structure of dynamical systems that come from biological problems, and then relating the mathematical structures back to the biology to provide scientific insight. We will focus on five key areas: complex bionetworks, multi scale biological dynamics, biological waves, nonlinear dynamics of pattern formation, and disease dynamics. For each of the five key areas, we will invite 23 world leaders who are also excellent communicators to deliver a series of 24 onehour lectures. We expect an average of eight hours of lecture per subject area, spread over approximately two weeks.
Updated on Nov 11, 2015 03:54 PM PST 
MSRIUP MSRIUP 2016: Sandpile Groups
Organizers: Federico Ardila (San Francisco State University), Duane Cooper (Morehouse College), Maria Mercedes Franco (Queensborough Community College (CUNY)), Herbert Medina (Loyola Marymount University), LEAD Suzanne Weekes (Worcester Polytechnic Institute)The MSRIUP summer program is designed for undergraduate students who have completed two years of universitylevel mathematics courses and would like to conduct research in the mathematical sciences. Due to funding restrictions, only U.S. citizens and permanent residents are eligible to apply and the program cannot accept foreign students regardless of funding. The academic portion of the 2016 program will be led by Prof. Luis GarciaPuente of Sam Houston State University.
Updated on Oct 02, 2015 01:38 PM PDT 
Summer Graduate School Harmonic Analysis and Elliptic Equations on real Euclidean Spaces and on Rough Sets
Organizers: LEAD Steven Hofmann (University of Missouri), Jose Maria Martell (Instituto de Ciencias Matematicas)The goal of the workshop is to present harmonic analysis techniques in $R^n$ (the ``flat" setting), and then to show how those techniques extend to much rougher settings, with application to the theory of elliptic equations. Thus, the subject matter of the workshop will introduce the students to an active, current research area: the interface between harmonic analysis, elliptic PDE, and geometric measure theory.
Updated on Oct 19, 2015 12:33 PM PDT 
Summer Graduate School Mixed Integer Nonlinear Programming: Theory, algorithms and applications
Organizers: Franscisco Castro (Universidad de Sevilla), Elena Fernandez (Universitat Politècnica de Catalunya), Justo Puerto (Universidad de Sevilla)This school is oriented to the presentation of theory, algorithms and applications for the solution of mixed integer nonlinear problems (MINLP). This type of problems appears in numerous application areas where the modelization of nonlinear phenomena with logical constraints is important; we must remember here the memorable phrase “the world is nonlinear”. Nowadays the theoretical aspects of this area are spread in a number of recent papers which makes it difficult, for nonspecialist, to have a solid background of the existing results and new advances in the field. This school aims to organize and present this material in an organized way. Moreover, it also pursues to link theory with actual applications. In particular, remarkable applications can be found in air traffic control agencies, the air companies, the electric power generation companies, the chemical complex units, the analysis of financial products usually associated with risk dealing and in the algorithms in the statistical field and artificial intelligence as for instance artificial neural networks, or supporting vector machines, among many others.
Updated on Oct 19, 2015 12:34 PM PDT 
Summer Graduate School An Introduction to Character Theory and the McKay Conjecture
Organizers: Robert Guralnick (University of Southern California), Pham Tiep (University of Arizona)Character Theory of Finite Groups provides one of the most powerful tools to study groups. In this course we will give a gentle introduction to basic results in the Character Theory, as well as some of the main conjectures in Group Representation Theory, with particular emphasis on the McKay Conjecture.
Updated on Oct 19, 2015 03:00 PM PDT 
Summer Graduate School Electronic Structure Theory
Organizers: LEAD Lin Lin (University of California, Berkeley), Jianfeng Lu (Duke University), James Sethian (University of California, Berkeley)Ab initio or first principle electronic structure theories, particularly represented by KohnSham density functional theory (KSDFT), have been developed into workhorse tools with a wide range of scientific applications in chemistry, physics, materials science, biology etc. What is needed are new techniques that greatly extend the applicability and versatility of these approaches. At the core, many of the challenges that need to be addressed are essentially mathematical. The purpose of the workshop is to provide graduate students a selfcontained introduction to electronic structure theory, with particular emphasis on frontier topics in aspects of applied analysis and numerical methods.
Updated on Oct 19, 2015 12:34 PM PDT 
Summer Graduate School Chip Firing and Tropical Curves
Organizers: LEAD Matthew Baker (Georgia Institute of Technology), Melody Chan (Brown University), Sam Payne (Yale University)Tropical geometry uses a combination of techniques from algebraic geometry, combinatorics, and convex polyhedral geometry to study degenerations of algebraic varieties; the simplest tropical objects are tropical curves, which one can think of as "shadows" of algebraic curves. Linear equivalence of divisors on an abstract tropical curve is determined by a simple but rich combinatorial process called "chip firing", which was discovered independently in the discrete setting by physicists and graph theorists. From a pedagogical point of view, one can view tropical curves as a combinatorial model for the highly analogous but more abstract theory of algebraic curves, but there is in fact much more to the story than this: one can use tropical curves and chip firing to prove theorems in algebraic geometry and number theory. This field is relatively new, so participants will have the opportunity to start from scratch and still get a glimpse of the cutting edge in this active research area.
Updated on Oct 19, 2015 12:35 PM PDT 
Program Geometric Group Theory
Organizers: Ian Agol (University of California, Berkeley), Mladen Bestvina (University of Utah), Cornelia Drutu (University of Oxford), LEAD Mark Feighn (Rutgers University), Michah Sageev (TechnionIsrael Institute of Technology), Karen Vogtmann (Cornell University)The field of geometric group theory emerged from Gromov’s insight that even mathematical objects such as groups, which are defined completely in algebraic terms, can be profitably viewed as geometric objects and studied with geometric techniques Contemporary geometric group theory has broadened its scope considerably, but retains this basic philosophy of reformulating in geometric terms problems from diverse areas of mathematics and then solving them with a variety of tools. The growing list of areas where this general approach has been successful includes lowdimensional topology, the theory of manifolds, algebraic topology, complex dynamics, combinatorial group theory, algebra, logic, the study of various classical families of groups, Riemannian geometry and representation theory.
The goals of this MSRI program are to bring together people from the various branches of the field in order to consolidate recent progress, chart new directions, and train the next generation of geometric group theorists.Updated on Jul 15, 2015 10:57 AM PDT 
Workshop Connections for Women: Geometric Group Theory
Organizers: LEAD Ruth Charney (Brandeis University), Indira Chatterji (Université Nice SophiaAntipolis), Mark Feighn (Rutgers University), Talia Fernos (University of North Carolina)This threeday workshop will feature talks by six prominent female mathematicians on a wide range of topics in geometric group theory. Each speaker will give two lectures, separated by a breakout session during which participants will meet in small groups to discuss ideas presented in the first lecture. The workshop is open to all mathematicians.Updated on Sep 10, 2015 11:50 AM PDT 
Workshop Introductory Workshop: Geometric Group Theory
Organizers: Martin Bridson (University of Oxford), Benson Farb (University of Chicago), LEAD Zlil Sela (Hebrew University), Karen Vogtmann (Cornell University)This will be an introductory workshop to the MSRI jumbo program Geometric Group Theory being held during the Fall Semester of 2016. The purpose of the workshop is to provide an overview of key areas of research to be covered in the program, including an introduction to open problems of current interest.
Updated on Jul 27, 2015 03:36 PM PDT 
Workshop Groups acting on CAT(0) spaces
Organizers: Ian Agol (University of California, Berkeley), PierreEmmanuel Caprace (Université Catholique de Louvain), Koji Fujiwara (Kyoto University), Alessandra Iozzi (ETHZ), LEAD Michah Sageev (TechnionIsrael Institute of Technology)The theme of the workshop is algebraic, geometric and analytical aspects of groups that act by isometries on spaces of nonpositive curvature known as CAT(0) spaces. The world of CAT(0) spaces includes classical spaces such as symmetric spaces and buildings, as well as more avantgarde arrivals, such as CAT(0) cube complex. The workshop will bring together researchers studying various aspects of such groups and spaces to discuss recent developments and chart new directions in the field.
Updated on Aug 14, 2015 01:41 PM PDT 
Workshop Geometry of mapping class groups and Out(Fn)
Organizers: Yael Algom Kfir (University of Haifa), LEAD Mladen Bestvina (University of Utah), Richard Canary (University of Michigan), Gilbert Levitt (Université de Caen)A fourday workshop with researchlevel talks on the latest advances in the geometry of mapping class groups and Out(F_n), and spaces on which they act.
Updated on Nov 09, 2015 01:25 PM PST 
Workshop Amenability, coarse embeddability and fixed point properties
Organizers: Goulnara Arzhantseva (University of Vienna), LEAD Cornelia Drutu (University of Oxford), Graham Niblo (University of Southampton), Piotr Nowak (Polish Academy of Sciences)The main theme of the workshop is the spectrum of analytic properties running from Kazhdan's property (T) at one end to von Neumann's amenability at the other, that forms a foundational organizing structure for infinite groups and spaces. These properties can be described both analytically, via unitary representation theory, and geometrically, using embedding properties for discrete spaces. Connections with probability and combinatorics will likewise be addressed during the meeting.
Updated on Oct 12, 2015 11:39 AM PDT 
Program Harmonic Analysis
Organizers: LEAD Michael Christ (University of California, Berkeley), Allan Greenleaf (University of Rochester), Steven Hofmann (University of Missouri), LEAD Michael Lacey (Georgia Institute of Technology), Svitlana Mayboroda (University of Minnesota, Twin Cities), Betsy Stovall (University of WisconsinMadison), Brian Street (University of WisconsinMadison)The field of Harmonic Analysis dates back to the 19th century, and has its roots in the study of the decomposition of functions using Fourier series and the Fourier transform. In recent decades, the subject has undergone a rapid diversification and expansion, though the decomposition of functions and operators into simpler parts remains a central tool and theme.This program will bring together researchers representing the breadth of modern Harmonic Analysis and will seek to capitalize on and continue recent progress in four major directions:Restriction, Kakeya, and Geometric Incidence ProblemsAnalysis on Nonhomogeneous SpacesWeighted Norm InequalitiesQuantitative Rectifiability and Elliptic PDE.Many of these areas draw techniques from or have applications to other fields of mathematics, such as analytic number theory, partial differential equations, combinatorics, and geometric measure theory. In particular, we expect a lively interaction with the concurrent program.Updated on Oct 06, 2015 07:56 PM PDT 
Program Analytic Number Theory
Organizers: Chantal David (Concordia University), Andrew Granville (Université de Montréal), Emmanuel Kowalski (ETH Zuerich), Philippe Michel (École Polytechnique Fédérale de Lausanne (EPFL)), Kannan Soundararajan (Stanford University), LEAD Terence Tao (University of California, Los Angeles)Analytic number theory, and its applications and interactions, are currently experiencing intensive progress, in sometimes unexpected directions. In recent years, many important classical questions have seen spectacular advances based on new techniques; conversely, methods developed in analytic number theory have led to the solution of striking problems in other fields.
This program will not only give the leading researchers in the area further opportunities to work together, but more importantly give young people the occasion to learn about these topics, and to give them the tools to achieve the next breakthroughs.
Updated on Jul 10, 2015 03:54 PM PDT 
Workshop Connections for Women: Harmonic Analysis
Organizers: LEAD Svitlana Mayboroda (University of Minnesota, Twin Cities), Betsy Stovall (University of WisconsinMadison)This workshop will highlight the work of several prominent women working in harmonic analysis, including some of the field's rising stars. It will feature 3 mini courses by senior researchers, a number of talks by analysts at the postdoctoral level and above, and a poster session for graduate students. This workshop is open to all mathematicians.
Updated on Sep 04, 2015 11:35 AM PDT 
Workshop Introductory Workshop: Harmonic Analysis
Organizers: Allan Greenleaf (University of Rochester), Steven Hofmann (University of Missouri), LEAD Michael Lacey (Georgia Institute of Technology), Betsy Stovall (University of WisconsinMadison)This weeklong workshop will serve as an introduction for graduate students, postdocs, and other researchers to the main themes of the program. It will feature accessible talks by a number of leading harmonic analysts, including several short courses on the core ideas and techniques in the field. There will also be a problem session, to which all participants are encouraged to contribute.
Updated on Sep 04, 2015 11:08 AM PDT 
Workshop Connections for Women: Analytic Number Theory
Organizers: LEAD Chantal David (Concordia University), Kaisa Matomaki (University of Turku), Lillian Pierce (Duke University), Kannan Soundararajan (Stanford University), Terence Tao (University of California, Los Angeles)This workshop will consist of lectures on the current state of research in analytic number theory, given by prominent women and men in the field. The workshop is open to all graduate students, postdocs, and researchers in areas related to the program; it will also include a panel discussion session among female researchers on career issues, as well as other social events
Updated on Nov 10, 2015 09:04 AM PST 
Workshop Introductory Workshop: Analytic Number Theory
Organizers: Andrew Granville (Université de Montréal), LEAD Emmanuel Kowalski (ETH Zuerich), Kaisa Matomaki (University of Turku), Philippe Michel (École Polytechnique Fédérale de Lausanne (EPFL))The introductory workshop will present, through short minicourses and introductory lectures, the main topics that will be the subject of much of the Analytic Number Theory Programme at MSRI. These topics include the theory of multiplicative functions, the theory of modular forms and Lfunctions, the circle method, sieve methods, and the theory of exponential sums over finite fields
Updated on Nov 13, 2015 10:33 AM PST 
Workshop Recent developments in analytic number theory
Organizers: Tim Browning (University of Bristol), Chantal David (Concordia University), Kannan Soundararajan (Stanford University), LEAD Terence Tao (University of California, Los Angeles)This workshop will be focused on presenting the latest developments in analytic number theory, including (but not restricted to) recent advances in sieve theory, multiplicative number theory, exponential sums, arithmetic statistics, estimates on automorphic forms, and the HardyLittlewood circle method.
Updated on Sep 11, 2015 12:25 PM PDT 
Workshop Recent Developments in Harmonic Analysis
Organizers: Michael Christ (University of California, Berkeley), LEAD Michael Lacey (Georgia Institute of Technology), Svitlana Mayboroda (University of Minnesota, Twin Cities), Brian Street (University of WisconsinMadison)Topics for this workshop will be drawn from the main research directions of this conference, including:(1) Restriction, Kakeya, and geometric incidence problems(2) Analysis on nonhomogenous spaces(3) Weighted estimates(4) Quantitative rectifiability and other topics in PDEUpdated on Sep 01, 2015 05:01 PM PDT 
Program Geometric Functional Analysis and Applications
Organizers: Franck Barthe (Universite Paul SabatierToulouse III), Marianna Csornyei (University of Chicago), Boaz Klartag (Tel Aviv University), Alexander Koldobsky (University of Missouri), Rafal Latala (University of Warsaw), LEAD Mark Rudelson (University of Michigan)Geometric functional analysis lies at the interface of convex geometry, functional analysis and probability. It has numerous applications ranging from geometry of numbers and random matrices in pure mathematics to geometric tomography and signal processing in engineering and numerical optimization and learning theory in computer science.
One of the directions of the program is classical convex geometry, with emphasis on connections with geometric tomography, the study of geometric properties of convex bodies based on information about their sections and projections. Methods of harmonic analysis play an important role here. A closely related direction is asymptotic geometric analysis studying geometric properties of high dimensional objects and normed spaces, especially asymptotics of their quantitative parameters as dimension tends to infinity. The main tools here are concentration of measure and related probabilistic results. Ideas developed in geometric functional analysis have led to progress in several areas of applied mathematics and computer science, including compressed sensing and random matrix methods. These applications as well as the problems coming from computer science will be also emphasised in our program.
Updated on Jun 02, 2015 01:17 PM PDT 
Program Geometric and Topological Combinatorics
Organizers: Jesus De Loera (University of California, Davis), Vic Reiner (University of Minnesota Twin Cities), LEAD Francisco Santos (University of Cantabria), Francis Su (Harvey Mudd College), Rekha Thomas (University of Washington), Günter M. Ziegler (Freie Universität Berlin)Combinatorics is one of the fastest growing areas in contemporary Mathematics, and much of this growth is due to the connections and interactions with other areas of Mathematics. This program is devoted to the very vibrant and active area of interaction between Combinatorics with Geometry and Topology. That is, we focus on (1) the study of the combinatorial properties or structure of geometric and topological objects and (2) the development of geometric and topological techniques to answer combinatorial problems.
Key examples of geometric objects with intricate combinatorial structure are point configurations and matroids, hyperplane and subspace arrangements, polytopes and polyhedra, lattices, convex bodies, and sphere packings. Examples of topology in action answering combinatorial challenges are the by now classical Lovász’s solution of the Kneser conjecture, which yielded functorial approaches to graph coloring, and the more recent, extensive topological machinery leading to breakthroughs on Tverbergtype problems.Updated on Sep 15, 2015 02:18 PM PDT 
Workshop Connections for Women: geometry and probability in high dimensions
Organizers: LEAD Shiri Artstein (Tel Aviv University), Marianna Csornyei (University of Chicago), Eva Kopecka (LeopoldFranzens Universität Innsbruck), Elisabeth Werner (Case Western Reserve University)This workshop is open to all mathematicians.
Updated on Sep 04, 2015 12:59 PM PDT 
Workshop Introductory Workshop: phenomena in high dimensions
Organizers: Alexander Koldobsky (University of Missouri), Michel Ledoux (University of Toulouse), Monika Ludwig (Technische Universität Wien), LEAD Alain Pajor (Université de Paris Est MarnelaVallée), Stanislaw Szarek (Case Western Reserve University), Roman Vershynin (University of Michigan)This workshop will consist of several short courses related to high dimensional convex geometry, high dimensional probability, and applications in data science. The lectures will be accessible for graduate students.
Updated on Oct 13, 2015 02:58 PM PDT 
Workshop Connections for Women Workshop: Geometric and Topological Combinatorics
Organizers: Federico Ardila (San Francisco State University), Margaret Bayer (University of Kansas), Francisco Santos (University of Cantabria), LEAD Cynthia Vinzant (North Carolina State University)Created on Sep 10, 2015 12:15 PM PDT 
Workshop Introductory Workshop: Geometric and Topological Combinatorics
Organizers: Imre Barany (Hungarian Academy of Sciences (MTA)), Anders Björner (Royal Institute of Technology (KTH)), LEAD Ben Braun (University of Kentucky), Isabella Novik (University of Washington), Francis Su (Harvey Mudd College), Rekha Thomas (University of Washington)Created on Sep 10, 2015 12:20 PM PDT 
Workshop Geometric and topological combinatorics: Modern techniques and methods
Organizers: Patricia Hersh (North Carolina State University), LEAD Vic Reiner (University of Minnesota Twin Cities), Bernd Sturmfels (UC Berkeley Math Faculty), Frank Vallentin (Universität zu Köln), Günter M. Ziegler (Freie Universität Berlin)This workshop will focus on the interaction between Combinatorics, Geometry and Topology, including recent developments and techniques in areas such as
 polytopes and cell complexes,
 simplicial complexes and higher order graph theory,
 methods from equivariant topology and configuration spaces,
 geometric combinatorics in optimization and social choice theory,
 algebraic and algebrogeometric methods.Updated on Sep 18, 2015 02:54 PM PDT 
Workshop Geometric functional analysis and applications
Organizers: Franck Barthe (Universite Paul SabatierToulouse III), Rafal Latala (University of Warsaw), Emanuel Milman (TechnionIsrael Institute of Technology), Assaf Naor (Princeton University), LEAD Gideon Schechtman (Weizmann Institute of Science)This is the main workshop of the program "Geometric functional analysis and applications". It will focus on the main topics of the program. These include: Convex geometry, Asymptotic geometric analysis, Interaction with computer science, Signal processing, Random matrix theory and other aspects of Probability.Created on Sep 10, 2015 11:41 AM PDT 
Workshop Women in Topology
Organizers: Maria Basterra (University of New Hampshire), Kristine Bauer (University of Calgary), LEAD Kathryn Hess (École Polytechnique Fédérale de Lausanne (EPFL)), Brenda Johnson (Union CollegeUnion University)Updated on Sep 28, 2015 03:12 PM PDT 
Program Enumerative Geometry Beyond Numbers
Organizers: Mina Aganagic (University of California, Berkeley), Denis Auroux (University of California, Berkeley), Jim Bryan, LEAD Andrei Okounkov (Columbia University), Balazs Szendroi (University of Oxford)Traditional enumerative geometry asks certain questions to which the expected answer is a number: for instance, the number of lines incident with two points in the plane (1, Euclid), or the number of twisted cubic curves on a quintic threefold (317 206 375). It has however been recognized for some time that the numerics is often just the tip of the iceberg: a deeper exploration reveals interesting geometric, topological, representation, or knottheoretic structures. This semesterlong program will be devoted to these hidden structures behind enumerative invariants, concentrating on the core fields where these questions start: algebraic and symplectic geometry.
Updated on Oct 12, 2015 03:39 PM PDT 
Program Group Representation Theory and Applications
Organizers: Robert Guralnick (University of Southern California), Alexander (Sasha) Kleshchev (University of Oregon), Gunter Malle (Universität Kaiserslautern), Gabriel Navarro (University of Valencia), Julia Pevtsova (University of Washington), Raphael Rouquier (University of California, Los Angeles), LEAD Pham Tiep (University of Arizona)Group Representation Theory is a central area of Algebra, with important and deep connections to areas as varied as topology, algebraic geometry, number theory, Lie theory, homological algebra, and mathematical physics. Born more than a century ago, the area still abounds with basic problems and fundamental conjectures, some of which have been open for over five decades. Very recent breakthroughs have led to the hope that some of these conjectures can finally be settled. In turn, recent results in group representation theory have helped achieve substantial progress in a vast number of applications.
The goal of the program is to investigate all these deep problems and the wealth of new results and directions, to obtain major progress in the area, and to explore further applications of group representation theory to other branches of mathematics.
Updated on Apr 10, 2015 02:52 PM PDT 
Workshop Connections for Women: Enumerative Geometry Beyond Numbers
Created on Sep 18, 2015 01:29 PM PDT 
Workshop Introductory Workshop: Enumerative Geometry Beyond Numbers
Created on Sep 18, 2015 01:35 PM PDT 
Workshop Connections for Women: Group Representation Theory and Applications
Organizers: Karin Erdmann (University of Oxford), Julia Pevtsova (University of Washington)Updated on Sep 28, 2015 03:56 PM PDT 
Workshop Introductory Workshop: Group Representation Theory and Applications
Organizers: Robert Guralnick (University of Southern California), Gunter Malle (Universität Kaiserslautern)Updated on Sep 28, 2015 04:01 PM PDT 
Workshop Topical Workshop: Enumerative Geometry Beyond Numbers
Created on Sep 18, 2015 01:38 PM PDT 
Workshop Representations of Finite and Algebraic Groups
Organizers: Robert Guralnick (University of Southern California), Alexander (Sasha) Kleshchev (University of Oregon), Gunter Malle (Universität Kaiserslautern), Gabriel Navarro (University of Valencia), LEAD Pham Tiep (University of Arizona)The workshop will bring together key researchers working in various areas of Group Representation Theory to strengthen the interaction and collaboration between them and to make further progress on a number of
basic problems and conjectures in the field. Topics of the workshop include
 Globallocal conjectures in the representation theory of finite groups
 Representations and cohomology of simple, algebraic and finite groups
 Connections to Lie theory and categorification, and
 Applications to group theory, number theory, algebraic geometry, and combinatorics.Updated on Oct 02, 2015 04:31 PM PDT

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