Results 31 to 40 of about 116,933 (156)

Generalized unitaries and the Picard group [PDF]

Proceedings of the Indian Academy of Sciences - Section A, 2006
minor corrections, some parts extended, this version is to appear in Proceedings of the Indian Academy of ...
openaire   +4 more sources

On the Hodge, Tate and Mumford-Tate Conjectures for Fibre Products of Families of Regular Surfaces with Geometric Genus 1

Моделирование и анализ информационных систем, 2018
The Hodge, Tate and Mumford-Tate conjectures are proved for the fibre product of two non-isotrivial 1-parameter families of regular surfaces with geometric genus 1 under some conditions on degenerated fibres, the ranks of the N\'eron - Severi groups of ...
Olga V. Oreshkina (Nikol’skaya)
doaj   +1 more source

Some examples of Picard groups of blocks

, 2019
We calculate examples of Picard groups for 2-blocks with abelian defect groups with respect to a complete discrete valuation ring. These include all blocks with abelian 2-groups of 2-rank at most three with the exception of the principal block of J1.
Eaton, Charles W., Livesey, Michael
core   +1 more source

On Picard groups of blocks of finite groups [PDF]

Journal of Algebra, 2020
We show that the subgroup of the Picard group of a $p$-block of a finite group given by bimodules with endopermutation sources modulo the automorphism group of a source algebra is determined locally in terms of the fusion system on a defect group. We show that the Picard group of a block over the a complete discrete valuation ring ${\mathcal O}$ of ...
Boltje, R., Kessar, R., Linckelmann, M.
openaire   +7 more sources

The Grothendieck and Picard groups of a complete toric DM stack

, 2011
We compute the Grothendieck and Picard groups of a complete smooth toric Deligne-Mumford stack by using a suitable category of graded modules over a polynomial ring.Comment: keywords: Graded rings, graded modules, toric DM stacks, Grothendieck group ...
Borisov, Cox, S. PAUL SMITH
core   +1 more source

The Picard group of topological modular forms via descent theory

, 2015
This paper starts with an exposition of descent-theoretic techniques in the study of Picard groups of $\mathbf{E}_{\infty}$-ring spectra, which naturally lead to the study of Picard spectra.
Mathew, Akhil, Stojanoska, Vesna
core   +1 more source

A Grothendieck-Lefschetz theorem for equivariant Picard groups

, 2017
We prove a Grothendieck-Lefschetz theorem for equivariant Picard groups of non-singular varieties with finite group actions.Comment: 7 pages; to appear in ...
Ravi, Charanya
core   +1 more source

Differential space of Feynman integrals: Annihilators and D-module

Physics Letters B
We present a novel algorithm for constructing differential operators with respect to external variables that annihilate Feynman-like integrals and give rise to the associated D-modules, based on Griffiths-Dwork reduction.
Vsevolod Chestnov, Wojciech Flieger, Pierpaolo Mastrolia, Saiei-Jaeyeong Matsubara-Heo, Nobuki Takayama, William J. Torres Bobadilla   +5 more
doaj   +1 more source

Super Elliptic Curves

, 1993
A detailed study is made of super elliptic curves, namely super Riemann surfaces of genus one considered as algebraic varieties, particularly their relation with their Picard groups.
Alvarez-Gaumé, Aoki, Cartan, Chandrasekharan, D'Hoker, DeWitt, Dieudonné, Dolgikh, Friedan, Giddings, Hartshorne, Haske, Hodgkin, Hodgkin, Jeffrey M. Rabin, Kanno, Kirkman, Koblitz, Levin, Levin, Manin, Manin, McArthur, Mezincescu, Mulase, Mulase, Mumford, Rabin, Rabin, Rabin, Rogers, Rogers, Rosly, Schwarz, Segal, Silverman, Weil   +36 more
core   +3 more sources

Logarithmic Picard groups, chip firing, and the combinatorial rank

, 2019
Illusie has suggested that one should think of the classifying group of M_X^{gp}-torsors on a logarithmically smooth curve $X$ over a standard logarithmic point as a logarithmic analogue of the Picard group of $X$.
Foster, T., Ranganathan, D., Talpo, M., Ulirsch, M.   +3 more
core   +1 more source