Výsledky vyhledávání - "lifting automorphisms"

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Lifting Automorphisms on Abelian Varieties as Derived Autoequivalences

We show that on an Abelian variety over an algebraically closed field of positive characteristic, the obstruction to lifting an automorphism to an Abelian variety over a field of characteristic zero as a morphism vanishes if and only if it vanishes f

Externí odkaz: http://arxiv.org/abs/2001.07762

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Lifting automorphisms along abelian regular coverings of graphs

Autor: Chen, Haimiao

Publikováno v: Discrete Mathematics 313 (2013), no. 14, 1535-1539

This article proposes an effective criterion for lifting automorphisms along regular coverings of graphs, with the covering transformation group being any finite abelian group.
Comment: 10 pages

Externí odkaz: http://arxiv.org/abs/1110.5038

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Lifting Automorphisms of Quotients by Central Subgroups

Autor: Kane, Ben, Shallue, Andrew

Given a finitely presented group $G$, we wish to explore the conditions under which automorphisms of quotients $G/N$ can be lifted to automorphisms of $G$. We discover that in the case where $N$ is a central subgroup of $G$, the question of lifting c

Externí odkaz: http://arxiv.org/abs/1304.4632

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Lifting automorphisms of quotients of adjoint representations

Autor: Schwarz, Gerald W.

Let $\mathfrak g_i$ be a simple complex Lie algebra, $1\leq i \leq d$, and let $G=G_1\times...\times G_d$ be the corresponding adjoint group. Consider the $G$-module $V=\oplus r_i\mathfrak g_i$ where $r_i\geq 1$ for all $i$. We say that $V$ is \emph{

Externí odkaz: http://arxiv.org/abs/1301.6300

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