Results 1 to 10 of about 333 (35)

Filtrations on Springer fiber cohomology and Kostka polynomials. [PDF]

open access: yesLett Math Phys, 2018
We prove a conjecture which expresses the bigraded Poisson-de Rham homology of the nilpotent cone of a semisimple Lie algebra in terms of the generalized (one-variable) Kostka polynomials, via a formula suggested by Lusztig. This allows us to construct a
Bellamy G, Schedler T.
europepmc   +5 more sources

Weak positivity for Hodge modules [PDF]

open access: yes, 2016
We prove the weak positivity of the kernels of Kodaira-Spencer- type maps for pure Hodge module extensions of generically defined variations of Hodge structure.Comment: 11 pages; final version, with a few corrections and expository ...
Popa, Mihnea, Wu, Lei
core   +1 more source

Algebraic connections vs. algebraic D-modules: regularity conditions. [PDF]

open access: yes, 2016
open2noThis paper is devoted to the comparison ot the notions of regularity for algebraic connections and regularity for (holonomic) algebraic D-modulesopenMaurizio, Cailotto; Luisa, FiorotCailotto, Maurizio; Fiorot ...

core   +1 more source

Kodaira dimension and zeros of holomorphic one-forms [PDF]

open access: yes, 2013
We show that every holomorphic one-form on a smooth complex projective variety of general type must vanish at some point. The proof uses generic vanishing theory for Hodge D-modules on abelian varieties.Comment: 9 pages; final version, to appear in Ann ...
Popa, Mihnea, Schnell, Christian
core   +4 more sources

The Bernstein-Sato b-Function of the Space of Cyclic Pairs [PDF]

open access: yes, 2015
We compute the Bernstein-Sato polynomial of $f$, a function which given a pair $(M,v)$ in $X = M_n(\mathbf{C}) \times \mathbf{C}^n$ tests whether $v$ is a cyclic vector for $M$.
Walters, Robin
core   +1 more source

On a question of Demailly-Peternell-Schneider

open access: yes, 2012
This note aims to give an affirmative answer to an open question posed by Demailly-Peternell-Schneider [DPS] in 2001 and recently by Peternell [P] again.
Chen, Meng, Zhang, Qi
core   +1 more source

On Dwork cohomology and algebraic D-modules

open access: yes, 2003
After works by Katz, Monsky, and Adolphson-Sperber, a comparison theorem between relative de Rham cohomology and Dwork cohomology is established in a paper by Dimca-Maaref-Sabbah-Saito in the framework of algebraic D-modules.
Baldassarri, Francesco, D'Agnolo, Andrea
core   +1 more source

The level of pairs of polynomials [PDF]

open access: yes, 2019
Given a polynomial $f$ with coefficients in a field of prime characteristic $p$, it is known that there exists a differential operator that raises $1/f$ to its $p$th power. We first discuss a relation between the `level' of this differential operator and
Boix, Alberto F.   +2 more
core   +2 more sources

Determinant bundle in a family of curves, after A. Beilinson and V. Schechtman

open access: yes, 1999
In Comm. Math. Physics 118 (1988), 651-701, A. Beilinson and V. Schechtman define on the total space of a smooth family of curves a so-called trace complex associated to a vector bundle, the 0-th relative cohomology of which is the Atiyah algebra of the ...
Esnault, Hélène, Tsai, I-Hsun
core   +1 more source

Weak positivity via mixed Hodge modules

open access: yes, 2014
We prove that the lowest nonzero piece in the Hodge filtration of a mixed Hodge module is always weakly positive in the sense of Viehweg.Comment: 9 ...
Schnell, Christian
core   +1 more source

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