AbstractWe study the poset of Borel congruence classes of symmetric matrices ordered by containment of closures. We give a combinatorial description of this poset and calculate its rank function. We discuss the relation between this poset and the Bruhat poset of involutions of the symmetric group
The Bruhat posets (arising from Weyl groups) which are lattices are classified. Seshadri's standard ...
The purpose of this article is to initiate a combinatorial study of the Bruhat-Chevalley ordering on...
Codimension computations of congruence orbits of matrices, symmetric and skew-symmetric matrix penci...
AbstractWe study the poset of Borel congruence classes of symmetric matrices ordered by containment ...
It is known that a Coxeter group W, partially ordered by the Bruhat order, is a graded poset, with r...
AbstractIn this paper we study the set of involutions of the hyperoctahedral group Bn with the order...
This thesis deals with singularities of orbits closures of Borel subgroups in symmetric spaces. We c...
We study the poset structure on row-convex permutominides induced by the Bruhat order on permutation...
Abstract. The purpose of this work is to initiate a combinatorial study of the Bruhat-Chevalley orde...
AbstractThe structure of order ideals in the Bruhat order for the symmetric group is elucidated via ...
We show that the principal order ideal below an element w in the Bruhat order on involutions in a sy...
The weak and strong Bruhat orders are classical and rich combinatorial objects, with connections to ...
summary:A concept of congruence preserving upper and lower bounds in a poset $P$ is introduced. If $...
Let G be a connected reductive linear algebraic group over an algebraically closed field. Fix a toru...
We prove that the grades of simple modules indexed by boolean permutations, over the incidence algeb...
The Bruhat posets (arising from Weyl groups) which are lattices are classified. Seshadri's standard ...
The purpose of this article is to initiate a combinatorial study of the Bruhat-Chevalley ordering on...
Codimension computations of congruence orbits of matrices, symmetric and skew-symmetric matrix penci...
AbstractWe study the poset of Borel congruence classes of symmetric matrices ordered by containment ...
It is known that a Coxeter group W, partially ordered by the Bruhat order, is a graded poset, with r...
AbstractIn this paper we study the set of involutions of the hyperoctahedral group Bn with the order...
This thesis deals with singularities of orbits closures of Borel subgroups in symmetric spaces. We c...
We study the poset structure on row-convex permutominides induced by the Bruhat order on permutation...
Abstract. The purpose of this work is to initiate a combinatorial study of the Bruhat-Chevalley orde...
AbstractThe structure of order ideals in the Bruhat order for the symmetric group is elucidated via ...
We show that the principal order ideal below an element w in the Bruhat order on involutions in a sy...
The weak and strong Bruhat orders are classical and rich combinatorial objects, with connections to ...
summary:A concept of congruence preserving upper and lower bounds in a poset $P$ is introduced. If $...
Let G be a connected reductive linear algebraic group over an algebraically closed field. Fix a toru...
We prove that the grades of simple modules indexed by boolean permutations, over the incidence algeb...
The Bruhat posets (arising from Weyl groups) which are lattices are classified. Seshadri's standard ...
The purpose of this article is to initiate a combinatorial study of the Bruhat-Chevalley ordering on...
Codimension computations of congruence orbits of matrices, symmetric and skew-symmetric matrix penci...
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