ﻻ يوجد ملخص باللغة العربية
We prove that the $0$-th local cohomology of the jacobian ring of a projective hypersurface with isolated singularities has a nice interpretation it in the context of linkage theory. Roughly speaking, it represents a measure of the failure of Gherardellis theorem for the corresponding graded modules. This leads us to a different and characteristic free proof of its self-duality, which turns out to be an easy consequence of Grothendiecks local duality theorem.
We prove a duality theorem for graded algebras over a field that implies several known duality results : graded local dualit
Let $(A, I)$ be a bounded prism, and $X$ be a smooth $p$-adic formal scheme over $Spf(A/I)$. We consider the notion of crystals on Bhatt--Scholzes prismatic site $(X/A)_{prism}$ of $X$ relative to $A$. We prove that if $X$ is proper over $Spf(A/I)$ o
We study the cup product on the Hochschild cohomology of the stack quotient [X/G] of a smooth quasi-projective variety X by a finite group G. More specifically, we construct a G-equivariant sheaf of graded algebras on X whose G-invariant global secti
Let $X$ be a closed equidimensional local complete intersection subscheme of a smooth projective scheme $Y$ over a field, and let $X_t$ denote the $t$-th thickening of $X$ in $Y$. Fix an ample line bundle $mathcal{O}_Y(1)$ on $Y$. We prove the follow
Using Dold--Puppe category approach to the duality in topology, we prove general duality theorem for the category of motives. As one of the applications of this general result we obtain, in particular, a generalization of Friedlander--Voevodskys dual