Author pages are created from data sourced from our academic publisher partnerships and public sources.

Publications Influence

Share This Author

Quiver Schur algebras and q-Fock space

- C. Stroppel, B. Webster
- Mathematics
- 5 October 2011

We develop a graded version of the theory of cyclotomic q-Schur algebras, in the spirit of the work of Brundan-Kleshchev on Hecke algebras and of Ariki on q-Schur algebras. As an application, we… Expand

Highest weight categories arising from Khovanov's diagram algebra IV: the general linear supergroup

- J. Brundan, C. Stroppel
- Mathematics
- 15 July 2009

We prove that blocks of the general linear supergroup are Morita equivalent to a limiting version of Khovanov's diagram algebra. We deduce that blocks of the general linear supergroup are Koszul.

Highest Weight Categories Arising from Khovanov's Diagram Algebra I: Cellularity

- J. Brundan, C. Stroppel
- Mathematics
- 9 June 2008

This is the first of four articles studying some slight generalisations Hn m of Khovanov’s diagram algebra, as well as quasi-hereditary covers Kn m of these algebras in the sense of Rouquier, and… Expand

Gradings on walled Brauer algebras and Khovanov’s arc algebra

- J. Brundan, C. Stroppel
- Mathematics
- 5 July 2011

Abstract We introduce some Z -graded versions of the walled Brauer algebra B r , s ( δ ) , working over a field of characteristic zero. This allows us to prove that B r , s ( δ ) is Morita equivalent… Expand

Highest weight categories arising from Khovanov's diagram algebra III: category O

- J. Brundan, C. Stroppel
- Mathematics
- 5 December 2008

We prove that integral blocks of parabolic category O associated to the subalgebra gl(m) x gl(n) of gl(m+n) are Morita equivalent to quasi-hereditary covers of generalised Khovanov algebras. Although… Expand

2-block Springer fibers: convolution algebras and coherent sheaves

- C. Stroppel, B. Webster
- Mathematics
- 14 February 2008

For a fixed 2-block Springer fiber, we describe the structure of its irreducible components and their relation to the Bialynicki-Birula paving, following work of Fung. That is, we consider the space… Expand

Highest weight categories arising from Khovanov's diagram algebra II: Koszulity

- J. Brundan, C. Stroppel
- Mathematics
- 20 June 2008

This is the second of a series of four papers studying various generalisations of Khovanov's diagram algebra. In this paper we develop the general theory of Khovanov's diagrammatically defined… Expand

Quadratic duals, Koszul dual functors, and applications

- V. Mazorchuk, S. Ovsienko, C. Stroppel
- Mathematics
- 20 March 2006

This paper studies quadratic and Koszul duality for modules over positively graded categories. Typical examples are modules over a path algebra, which is graded by the path length, of a not… Expand

Categorification of the Temperley-Lieb category, tangles, and cobordisms via projective functors

- C. Stroppel
- Mathematics
- 15 February 2005

To each generic tangle projection from the three-dimensional real vector space onto the plane, we associate a derived endofunctor on a graded parabolic version of the Bernstein-Gel'fand category… Expand

...

1

2

3

4

5

...