Results 21 to 30 of about 1,003 (79)

On period spaces for p-divisible groups

, 2008
In their book Rapoport and Zink constructed rigid analytic period spaces for Fontaine's filtered isocrystals, and period morphisms from moduli spaces of p-divisible groups to some of these period spaces.
Hartl, Urs
core   +2 more sources

On the Factorization of the Poincaré Polynomial: A Survey [PDF]

, 2004
2000 Mathematics Subject Classification: 13P05, 14M15, 14M17, 14L30.Factorization is an important and very difficult problem in mathematics. Finding prime factors of a given positive integer n, or finding the roots of the polynomials in the complex plane
Akyıldız, Ersan
core  

Flag varieties as equivariant compactifications of G_a^n [PDF]

, 2010
Let G be a semisimple affine algebraic group and P a parabolic subgroup of G. We classify all flag varieties G/P which admit an action of the commutative unipotent group G_a^n with an open orbit.Comment: 4 pages, small ...
Arzhantsev, Ivan V.
core  

Harish-Chandra's volume formula via Weyl's Law and Euler-Maclaurin formula

, 2013
Harish-Chandra's volume formula shows that the volume of a flag manifold $G/T$, where the measure is induced by an invariant inner product on the Lie algebra of $G$, is determined up to a scalar by the algebraic properties of $G$.
Atiyah, Berline, Duistermaat, Duistermaat, Euler, Euler, Fegan, Flensted-Jensen, Harish-Chandra, Knapp, Macdonald, McKean, Minakshisundaram, Mneimné, Peter, Pukhlikov, Seunghun Hong, Weyl, Weyl   +18 more
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Generic stabilizers for simple algebraic groups acting on orthogonal and symplectic Grassmannians

Forum of Mathematics, Sigma
We consider faithful actions of simple algebraic groups on self-dual irreducible modules and on the associated varieties of totally singular subspaces, under the assumption that the dimension of the group is at least as large as the dimension of the ...
Aluna Rizzoli
doaj   +1 more source

Geometry of lines and degeneracy loci of morphisms of vector bundles

, 2015
Corrado Segre played a leading role in the foundation of line geometry. We survey some recent results on degeneracy loci of morphisms of vector bundles where he still is of profound inspiration.Comment: 10 pages.
A Boralevi, B Ilic, D Bazan, D Faenzi, FR Gantmacher, G Fano, J Sylvester, JC Sierra, L Manivel, ML Fania, ML Fania, P Poi De, P Poi De, R Westwick, R Westwick   +14 more
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Δ–Springer varieties and Hall–Littlewood polynomials

Forum of Mathematics, Sigma
The $\Delta $ -Springer varieties are a generalization of Springer fibers introduced by Levinson, Woo and the author that have connections to the Delta Conjecture from algebraic combinatorics.
Sean T. Griffin
doaj   +1 more source

EQUIVARIANT $K$ -THEORY OF GRASSMANNIANS

Forum of Mathematics, Pi, 2017
We address a unification of the Schubert calculus problems solved by Buch [A Littlewood–Richardson rule for the $K$ -theory of Grassmannians, Acta Math. 189 (
OLIVER PECHENIK, ALEXANDER YONG
doaj   +1 more source

Trivial Witt groups of flag varieties

, 2011
Let G be a split semi-simple linear algebraic group over a field, let P be a parabolic subgroup and let L be a line bundle on the projective homogeneous variety G/P.
Baptiste Calmès, Demazure, Jean Fasel, Merkurjev   +3 more
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K-Orbit closures and Hessenberg varieties

Forum of Mathematics, Sigma
This article explores the relationship between Hessenberg varieties associated with semisimple operators with two eigenvalues and orbit closures of a spherical subgroup of the general linear group.
Mahir Bilen Can, Martha Precup, John Shareshian, Özlem Uğurlu   +3 more
doaj   +1 more source