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Integral Geometry in Representation Theory October 08, 2001 - October 12, 2001
Registration Deadline: October 12, 2001 over 21 years ago
To apply for Funding you must register by: July 08, 2001 almost 22 years ago
Parent Program:
Organizers Leticia Barchini, Oklahoma State University, Roger Zierau, Oklahoma State University.

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This workshop will concentrate on several topics in representation theory and geometric analysis of homogeneous spaces for which techniques in integral geometry play a key role. These topics will include: 1) Spaces of solutions of differential equations on homogeneous spaces and integral transforms representing solutions; Hua equations, Schmid equations, Poisson and Szego transforms, and Radon and Penrose transforms. Also, inversion formulas and various characterizations of the images of these transforms. Included is the geometry of cycle spaces and the holomorphic extensions of a representations to complex domains. 2) Harmonic analysis on homogeneous spaces. A major focus here is the Plancherel theorem for semisimple symmetric spaces. Also included is harmonic analysis on special spaces such as causal spaces and Makarevi\v c spaces. 3) Explicit geometric and analytic realizations of irreducible unitary representations on Hilbert spaces. Many very different techniques are used in this direction: Intertwining operators, degenerate principal series and harmonic analysis, constructions of minimal represenations, restricitions of irreducible representations to subgroups, the geometry of coadjoint orbits and quantization. Group Photo of Participants
Keywords and Mathematics Subject Classification (MSC)
Primary Mathematics Subject Classification No Primary AMS MSC
Secondary Mathematics Subject Classification No Secondary AMS MSC
Funding & Logistics Show All Collapse

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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 does not hire an outside company to make hotel reservations for our workshop participants, or share the names and email addresses of our participants with an outside party. If you are contacted by a business that claims to represent MSRI and offers to book a hotel room for you, it is likely a scam. Please do not accept their services.

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).

MSRI has preferred rates at the Graduate Berkeley, depending on room availability. Reservations may be made by calling 510-845-8981. When making reservations, guests must request the MSRI preferred rate. Enter in the Promo Code MSRI123 (this code is not case sensitive).

MSRI has preferred rates at the Berkeley Lab Guest House, depending on room availability. Reservations may be made by calling 510-495-8000 or directly on their website. Select "Affiliated with the Space Sciences Lab, Lawrence Hall of Science or MSRI." When prompted for your UC Contact/Host, please list Chris Marshall (coord@msri.org).

MSRI has a preferred rates at Easton Hall and Gibbs Hall, depending on room availability. Guests can call the Reservations line at 510-204-0732 and ask for the MSRI- Mathematical Science Research Inst. rate. To book online visit this page, select "Request a Reservation" choose the dates you would like to stay and enter the code MSRI (this code is not case sensitive).

Additional lodging options may be found on our short term housing page.

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Schedule, Notes/Handouts & Videos
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Oct 08, 2001
08:00 AM - 05:00 PM
  Applications of the discrete spectrum of semisimple symmetric spaces
Peter Trapa (University of Utah)
10:30 AM - 01:30 PM
  Twisted Radon transforms on Grassmannians
Toshio Oshima
01:30 PM - 02:45 PM
  Symmetry in Integral Geometry
Michael Eastwood (Australian National University)
02:45 PM - 03:45 PM
  The dual horospherical Radon transform for polynomials
Joachim Hilgert
Oct 09, 2001
09:30 AM - 11:00 AM
  Residues in the Plancherel formula for a semisimple symmetric space
Erik van den Ban
11:00 AM - 02:00 PM
  Geometric connection of the Poisson kernel with a Cayley transform for homogeneous Siegel domains
Takaaki Nomura
02:00 PM - 03:30 PM
  The Helgason (KKMOOT) Theorem for non-symmetric Kähler manifolds
Richard Penney
03:30 PM - 04:30 PM
  Totally geodesic Radon transform on symmetric spaces
Sigurdur Helgason
Oct 10, 2001
09:30 AM - 11:00 AM
  D(G/H) and K-finite functions on a reductive symmetric space G/H
Patrick Delorme
11:00 AM - 02:00 PM
  Horospherical transform and Plancherel formula on symmetric spaces
Simon Gindikin (Rutgers University)
02:00 PM - 03:30 PM
  Analysis of Berezin kernels on symmetric spaces
Yurii Neretin
03:30 PM - 04:30 PM
  The Maslor index and bounded cohomology
Bent Ørsted
Oct 11, 2001
11:00 AM - 02:00 PM
  Langlands formalism for nonalgebraic groups and applications to character lifting
Peter Trapa (University of Utah)
02:00 PM - 03:30 PM
  Holomorphic aspects of representations: geometry and harmonic analysis
Robert Stanton
03:30 PM - 04:30 PM
  Conformal geometry and analysis on minimal representations of O(p,q)
Toshiyuki Kobayashi
Oct 12, 2001
11:00 AM - 02:00 PM
  Helgason's conjecture and its generalization to affine symmetric spaces
Jing-Song Huang
02:00 PM - 03:30 PM
  The generalized Cayley map from an algebraic group to its Lie algebra
Bertram Kostant
03:30 PM - 04:30 PM
  Jordan algebras and good models for unipotent representations
Alexander Dvorsky