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2018 Jun 26

Amitsur Symposium: Alex Lubotzky - "First order rigidity of high-rank arithmetic groups"

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Location: 

Manchester House, Lecture Hall 2
10:00am to 11:00am

See also: Events & Seminars, Amitsur Algebra, Seminars
The family of high rank arithmetic groups is a class of groups playing an important role in various areas of mathematics. It includes SL(n,Z), for n>2 , SL(n, Z[1/p] ) for n>1, their finite index subgroups and many more. A number of remarkable results about them have been proven including; Mostow rigidity, Margulis Super rigidity and the Quasi-isometric rigidity.
2018 Jun 26

Amitsur Symposium: Malka Schaps - "Symmetric Kashivara crystals of type A in low rank"

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Location: 

Manchester House, Lecture Hall 2
11:30am to 12:30pm

See also: Events & Seminars, Amitsur Algebra, Seminars
The basis of elements of the highest weight representations of affine Lie algebra of type A can be labeled in three different ways, my multipartitions, by piecewise linear paths in the weight space, and by canonical basis elements. The entire infinite basis is recursively generated from the highest weight vector of operators f_i from the Chevalley basis of the affine Lie algebra, and organized into a crystal called a Kashiwara crystal. We describe cases where one can move between the different labelings in a non-recursive fashion, particularly when the crystal has some symmetry.
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Einstein Institute of Mathematics
Edmond J. Safra Campus (map)
The Hebrew University of Jerusalem
Givat Ram. Jerusalem, 9190401, Israel

Fax. 972-2-5630702

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Welcome to the Einstein Institute of Mathematics

The Einstein Institute of Mathematics was founded in 1925, and has since become one of the world's leading research institutes. The Institute offers B.Sc., M.Sc., and Ph.D. studies, hosts postdocs and visitors from around the world and promotes mathematical education through various seminars, conferences, workshops and other programs for students, teachers and the general public. Our research areas currently include the foundations of mathematics, logic, algebra, group theory, representation theory, differential geometry, algebraic topology, analysis, ergodic theory and dynamical systems, number theory, probability, combinatorics and game theory.

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