Zobrazeno 1 - 10
of 4 378
pro vyhledávání: '"[MATH.MATH-AG] Mathematics [math]/Algebraic Geometry [math.AG]"'
Autor:
Rodolfo Aguilar
Publikováno v:
Épijournal de Géométrie Algébrique, Vol Volume 5 (2021)
We provide a description of the fundamental group of the quotient of a product of topological spaces X i, each admitting a universal cover, by a finite group G, provided that there is only a finite number of path-connected components in X g i for eve
Externí odkaz:
https://doaj.org/article/edb865c4039a4355893ce1c21a900d00
Publikováno v:
Designs, Codes and Cryptography
Designs, Codes and Cryptography, 2022
Designs, Codes and Cryptography, 2022
Strongly walk regular graphs (SWRGs or $s$-SWRGs) form a natural generalization of strongly regular graphs (SRGs) where paths of length~2 are replaced by paths of length~$s$. They can be constructed as coset graphs of the duals of projective three-we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7d8d19bb16f7f64a9006092666a25a6
https://doi.org/10.1007/s10623-022-01118-z
https://doi.org/10.1007/s10623-022-01118-z
Given a smooth genus three curve $C$, the moduli space of rank two stable vector bundles on C with trivial determinant embeds in $\mathbb{P}^8$ as a hypersurface whose singular locus is the Kummer threefold of $C$; this hypersurface is the Coble quar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::830c41130944556149c36b5bf4121e6d
http://arxiv.org/abs/2307.05993
http://arxiv.org/abs/2307.05993
Autor:
Nicolás, Francisco, Py, Pierre
Publikováno v:
Annales de la Faculté des Sciences de Toulouse. Mathématiques.
Annales de la Faculté des Sciences de Toulouse. Mathématiques., Université Paul Sabatier _ Cellule Mathdoc In press
Annales de la Faculté des Sciences de Toulouse. Mathématiques., Université Paul Sabatier _ Cellule Mathdoc In press
We study irrational pencils with isolated critical points on compact aspherical complex manifolds. We prove that if the set of critical points is nonempty, the homology of the kernel of the morphism induced by the pencil on fundamental groups is not
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::570ed702843be97b156e80991db1c4e5
https://doi.org/10.5802/afst.1727
https://doi.org/10.5802/afst.1727
Autor:
Kahn, Bruno
Publikováno v:
Confluentes Mathematici. 14:45-51
Inspired by recent work of Peter O'Sullivan (arXiv:2012.15703), we give a condition under which a faithful monoidal functor between abelian $\otimes$-categories is exact.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97de6eb8072311bd09ce14bb00a2912d
https://doi.org/10.5802/cml.86
https://doi.org/10.5802/cml.86
Autor:
Boris Pasquier
Publikováno v:
Épijournal de Géométrie Algébrique, Vol Volume 4 (2020)
We classify all smooth projective horospherical varieties of Picard group $\mathbb{Z}^2$ and we give a first description of their geometry via the Log Minimal Model Program.
Externí odkaz:
https://doaj.org/article/2d62de8228c743fd87629681ab98938c
Autor:
Faenzi, Daniele, Yeongrak, Kim
Publikováno v:
Commentarii Mathematici Helvetici. 97:691-728
We show the existence of rank 6 Ulrich bundles on a smooth cubic fourfold. First, we construct a simple sheaf E of rank 6 as an elementary modification of an ACM bundle of rank 6 on a smooth cubic fourfold. Such an E appears as an extension of two Le
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4633fc8ea5f2a4ad4aba25e46419e9c2
https://doi.org/10.4171/cmh/546
https://doi.org/10.4171/cmh/546
Publikováno v:
Journal of Algebra
Journal of Algebra, 2022, 612, pp.691-721. ⟨10.1016/j.jalgebra.2022.08.026⟩
Journal of Algebra, 2022, 612, pp.691-721. ⟨10.1016/j.jalgebra.2022.08.026⟩
International audience; We address the description of the tropicalization of families of rational varieties under parametrizations with prescribed support, via curve valuations. We recover and extend results by Sturmfels, Tevelev and Yu for generic c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7716c6324ecc192055eef68d8ea6d23
https://doi.org/10.1016/j.jalgebra.2022.08.026
https://doi.org/10.1016/j.jalgebra.2022.08.026
Autor:
Guenancia, Henri, Taji, Behrouz
Publikováno v:
Geometry and Topology
Geometry and Topology, Mathematical Sciences Publishers, In press
Geometry and Topology, Mathematical Sciences Publishers, In press
After establishing suitable notions of stability and Chern classes for singular pairs, we use K\"ahler-Einstein metrics with conical and cuspidal singularities to prove the slope semistability of orbifold tangent sheaves of minimal log-canonical pair
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7715a237df91bbf695a064bf393428f3
https://doi.org/10.2140/gt.2022.26.1435
https://doi.org/10.2140/gt.2022.26.1435
Publikováno v:
ISSAC '23: Proceedings of the 2023 International Symposium on Symbolic and Algebraic Computation
ISSAC 2023-48th International Symposium on Symbolic and Algebraic Computation
ISSAC 2023-48th International Symposium on Symbolic and Algebraic Computation, Jul 2023, Tromsø, Norway. ⟨10.1145/3597066.3597081⟩
ISSAC 2023-48th International Symposium on Symbolic and Algebraic Computation
ISSAC 2023-48th International Symposium on Symbolic and Algebraic Computation, Jul 2023, Tromsø, Norway. ⟨10.1145/3597066.3597081⟩
We consider the problem of answering connectivity queries on a real algebraic curve. The curve is given as the real trace of an algebraic curve, assumed to be in generic position, and being defined by some rational parametrizations. The query points
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d5616b14b8ec08d08b9531443060b6b3
https://hal.science/hal-04000614v2/file/algcurves-merged.pdf
https://hal.science/hal-04000614v2/file/algcurves-merged.pdf