Zobrazeno 1 - 10
of 265
pro vyhledávání: '"Drezet, J. M."'
Autor:
Drézet, J. -M.
Some coherent sheaves on projective varieties have a non reduced versal deformation space. For example, this is the case for most unstable rank 2 vector bundles on ${\mathbb P}_2$. In particular, it may happen that some moduli spaces of stable sheave
Externí odkaz:
http://arxiv.org/abs/1705.10634
Publikováno v:
In Journal of Materials Processing Tech. January 2019 263:396-407
Autor:
Drezet, J. -M.
Publikováno v:
Central European Journal of Mathematics 11, no 12 (2013), 2106-2137
A primitive multiple curve is a Cohen-Macaulay irreducible projective curve Y that can be locally embedded in a smooth surface, and such that the associated reduced curve Y_red is smooth. The subject of this paper is the study of deformations of Y in
Externí odkaz:
http://arxiv.org/abs/1210.3920
Autor:
Drézet, J. -M.
Let E,F be algebraic vector bundles on a projective algebraic variety. Let G=Aut(E)XAut(F), acting on W=Hom(E,F). In this paper new methods of construction of algebraic quotients of open G-invariant subsets of W are studied. This is done by associati
Externí odkaz:
http://arxiv.org/abs/math/9903074
Autor:
Drézet, J. -M.
In this paper, some particular rational maps P_n ---> P_n+1, called quadratic congruences, are studied. They appear in the theory of exceptional vector bundles on projective spaces.
Comment: 34 pages, LaTeX 2e, 3 figures
Comment: 34 pages, LaTeX 2e, 3 figures
Externí odkaz:
http://arxiv.org/abs/math/9812128
Autor:
Drezet, J. M., Trautmann, G.
We extend the methods of geometric invariant theory to actions of non--reductive groups in the case of homomorphisms between decomposable sheaves whose automorphism groups are non--reductive. Given a linearization of the natural action of the group $
Externí odkaz:
http://arxiv.org/abs/math/9805059
Publikováno v:
In Finite Elements in Analysis & Design 1 September 2017 131:17-24
Autor:
Drezet, J. -M.
Publikováno v:
International Journal of Mathematics Vol. 9 No 7 (1998) , 769-819
I give a way to construct moduli spaces of complexes, as quotients of open subsets of the space of all complexes by the product of the groups of automorphisms of the terms.
Comment: 46 pages, in French, LaTeX
Comment: 46 pages, in French, LaTeX
Externí odkaz:
http://arxiv.org/abs/alg-geom/9701005
Publikováno v:
In Journal of Alloys and Compounds 5 January 2016 654:56-62
Publikováno v:
In Journal of Materials Processing Tech. August 2015 222:373-380