1 citations · 3 across the 7 of their papers we have counts for
8 papers
The Balmer spectrum of integral permutation modules
Umesh V Dubey, Juan Omar Gómez
We extend the analysis of Balmer and Gallauer on the tt-geometry of the small derived category of permutation modules for a finite group over a field to the setting of a commutativ…
Quot schemes and Fourier-Mukai transformation
Indranil Biswas, Umesh V Dubey, Manish Kumar +1
We consider several related examples of Fourier-Mukai transformations involving the quot scheme. A method of showing conservativity of these Fourier-Mukai transformations is descri…
On Perverse sheaves of a Coxeter hyperplane arrangement of type
Umesh V Dubey, Subham Sarkar
Kapranov and schechtman gave quiver description of perverse sheaves on real hyperplane arrangements. We used this description to relate the perverse sheaves on Coxeter hyperplane a…
Tensor weight structures and t-structures on derived categories of Noetherian schemes
Umesh V Dubey, Gopinath Sahoo
We give a condition which characterises those weight structures on a derived category which come from a Thomason filtration on the underlying scheme. Weight structures satisfying o…
Compactly generated tensor t-structures on the derived category of a Noetherian scheme
Gopinath Sahoo, Umesh V. Dubey
We introduce a tensor compatibility condition for t-structures. For any Noetherian scheme , we prove that there is a one-to-one correspondence between the set of filtrations of…
On Differential Graded Eilenberg Moore Construction
Umesh V. Dubey, Vivek Mohan Mallick
This paper studies the Eilenberg Moore construction on DG categories. As applications one proves results on factoring of monads as composition of a pair of adjoint exact functors a…
Triangular spectrum of some triangulated categories
Umesh V. Dubey, Vivek M. Mallick
In this paper, we compute triangular spectrum (as defined by P. Balmer) of two classes of tensor triangulated categories which are quite common in algebraic geometry. One of them i…
The Cartan Matrix of a Centraliser Algebra
Umesh V. Dubey, Amritanshu Prasad, Pooja Singla
The centralizer algebra of a matrix consists of those matrices that commute with it. We investigate the basic representation-theoretic invariants of centralizer algebras, namely th…