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Workshop

Connections for Women: Inverse Problems and Applications August 19, 2010 - August 20, 2010
Registration Deadline: August 19, 2010 about 9 years ago
To apply for Funding you must register by: May 19, 2010 over 9 years ago
Parent Program:
Organizers Tanya Christiansen (University of Missouri, Columbia), Alison Malcolm (Massachusetts Institute of Technology), Shari Moskow (Drexel University), Chrysoula Tsogka (University of Crete), and Gunther Uhlmann* (University of Washington)
Description
Inverse Problems are problems where causes for a desired or an observed effect are to be determined. They lie at the heart of scientific inquiry and technological development. Applications include a number of medical as well as other imaging techniques, location of oil and mineral deposits in the earth’s substructure, creation of astrophysical images from telescope data, finding cracks and interfaces within materials, shape optimization, model identification in growth processes and, more recently, modelling in the life sciences. The workshop will consist of four 4 minicourses of 2 hours each that will give an introduction to several of the topics discussed in the Introductory Workshop the following week as well as topics that will be discussed during the Fall semester. A brief description of each minicourse follows.   An Introduction to Microlocal Analysis Lecturer: Tanya Christiansen (U. of Missouri, Columbia) Microlocal analysis is useful in understanding solutions of differential equations. Pseudodifferential operators arise, for example, in inverting elliptic differential equations. We introduce pseudodifferential operators and their mapping properties. We will see that the notion of the “wave front set” of a function is very helpful in describing its singularities. An Introduction To Seismic Imaging Lecturer: Alison Malcolm (MIT) This course will give a broad overview of seismic imaging techniques, highlighting their underlying relationships to imaging in other fields (e.g. radar and ultrasound). We will begin with the Generalized Radon Transform, progress to one-way methods using a microlocal splitting of the wave equation into up- and down-going waves, and finish with a discussion of so-called reverse-time migration in which the full wave equation is run backwards in time to form an image. We will discuss the approximations underlying each method and their relative importance and will briefly discuss extensions beyond single-scattering. An Introduction to Asymptotic Expansions for Small Inhomogeneities in EIT and Related Problems Lecturer: Sharil Moskow (Drexel U.) We discuss the basic tools and derivation of series expansions for potential data in the presence of small volume inhomogeneities which are different from a smooth background conductivity. We explain what properties can be recovered from the series terms and give a few ideas about how these expansions can be used to do inversion. Coherent Imaging in Random Media Lecturer: Chrysoula Tsogka (U. of Crete) We consider the problem of arrayimaging in cluttered media, in regimes with significant multiple scatteringof the waves by the inhomogeneities.In such scatteringregimes, the recorded traces at the array have long and noisy codasand classic imaging methods give unstable results. We will discuss coherent statistically stable imaging methodologies for imaging in such regimes.     Program (PDF) Bibliography (PDF) Accommodations: A block of rooms has been reserved at the Rose Garden Inn. Reservations may be made by calling 1-800-992-9005 OR directly on their website. Click on Corporate at the bottom of the screen and when prompted enter code MATH (this code is not case sensitive). By using this code a new calendar will appear and will show MSRI rate on all room types available. The cut-off date for reservations is August 2, 2010. A block of rooms has been reserved at the Hotel Durant. Please mention the workshop name and reference the following code when making reservations via phone, fax or e-mail: MSRICONNECTIONS. If you are making your reservations on line, please go to Hotel Durant website, choose your dates of stay and enter the "123MSRI" promo code in the box. The cut-off date for reservations is July 20, 2010. The rate is $139 per night plus tax. New, completely renovated Hotel Shattuck Plaza has rooms available for you! MSRI’s preferred rate is $131. Guests can either call the hotel’s main line, 510-845-7300, and ask for the MSRI rate or go to http://www.hotelshattuckplaza.com, click on "Corporate Rates" in the reservation screen and type the code msri10.
Keywords and Mathematics Subject Classification (MSC)
Primary Mathematics Subject Classification No Primary AMS MSC
Secondary Mathematics Subject Classification No Secondary AMS MSC
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To apply for funding, you must register by the funding application deadline displayed above.

Students, recent Ph.D.'s, women, and members of underrepresented minorities are particularly encouraged to apply. Funding awards are typically made 6 weeks before the workshop begins. Requests received after the funding deadline are considered only if additional funds become available.

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MSRI has preferred rates at the Hotel Shattuck Plaza, depending on room availability. Guests can call the hotel's main line at 510-845-7300 and ask for the MSRI- Mathematical Science Research Institute discount. To book online visit this page (the MSRI rate will automatically be applied).

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Schedule, Notes/Handouts & Videos
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Aug 19, 2010
Thursday
09:30 AM - 10:30 AM
  Introduction to Microlocal Analysis I
Tanya Christiansen (University of Missouri)
11:00 AM - 12:00 PM
  Introduction to Microlocal Analysis II
Tanya Christiansen (University of Missouri)
02:00 PM - 03:00 PM
  An Introduction to Asymptotic Expansions for Small Inhomogeneities in EIT and Related Problems I
Shari Moskow
03:30 PM - 04:30 PM
  Coherent Imaging in Random Media I
Chrysoula Tsogka (University of Crete)
Aug 20, 2010
Friday
09:30 AM - 10:30 AM
  Coherent Imaging in Random Media II
Chrysoula Tsogka (University of Crete)
11:00 AM - 12:00 PM
  An Introduction to Asymptotic Expansions for Small Inhomogeneities in EIT and Related Problems II
Shari Moskow
02:00 PM - 03:00 PM
  Introduction to Seismic Imaging I
Alison Malcolm (Massachusetts Institute of Technology)
03:30 PM - 04:30 PM
  Introduction to Seismic Imaging I I
Alison Malcolm (Massachusetts Institute of Technology)