Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Bangming Deng"'
The theory of Schur–Weyl duality has had a profound influence over many areas of algebra and combinatorics. This text is original in two respects: it discusses affine q-Schur algebras and presents an algebraic, as opposed to geometric, approach to
Autor:
Bangming Deng, Lina Han
Publikováno v:
Journal of Algebra. 596:219-249
Autor:
Bangming Deng, Guiyu Yang
Publikováno v:
Journal of Pure and Applied Algebra. 227:107354
Publikováno v:
Journal of Algebra. 535:365-406
We construct a new basis for a slim cyclotomic q-Schur algebra S m ( n , r ) via symmetric polynomials in Jucys–Murphy operators of the cyclotomic Hecke algebra H m ( r ) . We show that this basis, labelled by matrices, is not the double coset basi
Publikováno v:
International Mathematics Research Notices. 2020:5814-5871
Let $\rm{coh}\mathbb{X}$ be the category of coherent sheaves over a weighted projective line $\mathbb{X}$ and let $D^b(\rm{coh}\mathbb{X})$ be its bounded derived category. The present paper focuses on the study of the right and left mutation functor
Autor:
Qinghua Chen, Bangming Deng
Publikováno v:
Journal of Algebra. 440:1-32
In this paper we study the category C m ( P ) of m -cyclic complexes over P , where P is the category of projective modules over a finite dimensional hereditary algebra A , and describe almost split sequences in C m ( P ) . This is applied to prove t
Publikováno v:
Recent Developments in Algebraic and Combinatorial Aspects of Representation Theory. :99-114
Autor:
Guiyu Yang, Bangming Deng
Publikováno v:
Journal of Pure and Applied Algebra. 215(7):1769-1781
A geometric construction of quantum Schur algebras was given by Beilinson, Lusztig and MacPherson in terms of pairs of flags in a vector space. By viewing such pairs of flags as representations of a poset, we give a recursive formula for the structur
Autor:
Bangming Deng, Guiyu Yang
Publikováno v:
Science China Mathematics. 54:411-420
In the present paper we determine the representation type of the 0-Hecke algebra of a finite Coxeter group.
Publikováno v:
Journal of Pure and Applied Algebra. 214:1787-1799
Using the generators labelled by simple and sincere semisimple modules for the Ringel–Hall algebra Hq(n) of a cyclic quiver Δ(n), we give a presentation for the degenerate algebra H0(n). This is achieved by establishing a presentation for the gene