Mathematical Society of Japan (MSJ) Seasonal Institute (SI) 2009 on Arrangements of Hyperplanes


Talks: 2nd week

August 8 (Sat)
  9:30-- Takashi Tsuboi (President of the Mathematical Society of Japan)
Welcome speech
  9:45--10:45 Kazuhiko Aomoto (Nagoya University, Japan)
Hypersphere arrangement and imaginary cycles for hypergeometric integrals
11:15--12:15 Christos Athanasiadis (University of Athens, Greece)
Hyperplane arrangements, random walks and eigenvalues
14:15--15:15 Anatoly Libgober (University of Illinois at Chicago, USA)
Characteristic varieties of arrangements with isolated non normal crossings
15:45--16:45 Eva Maria Feichtner (University of Bremen, Germany)
On tropical arrangement compactifications
17:00--18:00 Richard Rimanyi (The University of North Carolina at Chapel Hill, USA)
Equivariant classes of matroid realization spaces
August 9 (Sun)
  9:45--10:45 Uli Walther (Purdue University, USA)
Bockstein maps in local cohomology Joint with Anurag Singh (Utah)
11:15--12:15 Claudio Procesi (Università di Roma, Italy)
From splines to the index theorem
14:15--15:15 Alexandru Suciu (Northeastern University, USA)
On the geometry and topology of cohomology jump loci
15:45--16:45 Igor Dolgachev (University of Michigan, USA)
Invariant theory of arrangements of hyperplanes
17:00--17:30 [short communication I]
Simona Settepanella (Scuola Superiore Sant'Anna, Italy)
Arrangements and political economics
17:30--18:00 [short communication II]
Luca Moci (Università di Roma, Italy)
An introduction to toric arrangements
18:00--18:30 [short communication III]
Yoshio Sano (RIMS, Japan)
Graphical Arrangements and Braid Arrangements
-- Graph orientations and linear extensions --
August 10 (Mon)
  9:45--10:45 Anders Björner (Mittag-Leffler Institute, Sweden)
(presented by Axel Hultman (Royal Institute of Technology, Sweden))
Random walks on complex hyperplane arrangements and self-organizing libraries
11:15--12:15 Katsuhisa Mimachi (Tokyo Institute of Technology, Japan)
Arrangements of hyperplanes and solutions of the Fuchsian diferential equations free from accessary parameters
14:15--15:15 Dai Tamaki (Shinshu University, Japan)
Iterated loop spaces and oriented matroids
15:45--16:45 Mario Salvetti (Università di Pisa, Italy)
Some applications of discrete Morse theory to arrangements
17:00--18:00 Antoine Deza (McMaster University, Canada)
Hyperplane arrangements with large average diameter
August 11 (Tue)
  9:45--10:15 [short communication IV]
Meital Eliyahu (Bar Ilan University, Israel)
A characterization of line arrangement whose fundamental group is a direct sum of free groups
10:15--10:45 [short communication V]
David Garber (Holon Institute of Technology, Israel)
A conjugation-free geometric presentation of fundamental groups of arrangements
11:15--12:15 Yoshishige Haraoka (Kumamoto University, Japan)
Arrangements of hyperplanes arising from sections of rigid local systems
14:15--15:15 Hironobu Kimura (Kumamoto University, Japan)
On a problem of arrangements related to the hypergeometric integrals of confluent type
15:45--16:45 Eduard Looijenga (Universiteit Utrecht, Netherlands)
Representations out of polydifferentials and the KZ-system
17:00--17:30 [short communication VI]
Amanda Hager (University of Iowa, USA)
Freeness of arrangements and arrangement bundles
17:30--18:00 [short communication VII]
Miguel Angel Marco-Buzunariz (Instituto de Ciencias Matematicas Consejo Superior de Investigaciones Cientificas, Spain)
On Rybnikov's example
18:00--18:30 [short communication VIII]
Suho Oh (MIT, USA)
Bruhat order and hyperplane arrangements
18:30--19:00 [short communication IX]
Max Wakefield (US Naval Academy, USA)
Formality of subspace arrangements
August 12 (Wed)
  9:45--10:45 Michael Falk (Northern Arizona University, USA)
Vanishing products in Orlik--Solomon algebras
11:15--12:15 David Mond (University of Warwick, UK)
Some new free divisors associated with versal deformations and stable maps
14:15--15:15 Ichiro Shimada (Hiroshima University, Japan)
On lattice-theoretic invariants of curves on a surface
15:45--16:45 Jorge Vitório Pereira (IMPA, Brazil)
Webs and arrangements
17:00--18:00 Graham Denham (University of Western Ontario, Canada)
Critical sets of master functions: resonance and log derivations
August 13 (Thu)
  9:45--10:45 Daniel Cohen (Louisiana State University, USA)
Collision-free motion planning on surfaces
11:15--12:15 Tomohide Terasoma (The University of Tokyo, Japan)
Lines in Fermat hypersurfaces and M_{0,n}
14:15--15:15 Ivan Cherednik (The University of North Carolina at Chapel Hill, USA)
Affine root systems and harmonic analysis

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