Results 11 to 20 of about 8,270,142 (310)
Gromov-Witten classes, quantum cohomology, and enumerative geometry [PDF]
The paper is devoted to the mathematical aspects of topological quantum field theory and its applications to enumerative problems of algebraic geometry. In particular, it contains an axiomatic treatment of Gromov-Witten classes, and a discussion of their
M. Kontsevich, Y. Manin
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On Perfectly Generating Projective Classes in Triangulated Categories [PDF]
We say that a projective class in a triangulated category with coproducts is perfect if the corresponding ideal is closed under coproducts of maps. We study perfect projective classes and the associated phantom and cellular towers.
G. Modoi
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Regular subgroups, nilpotent algebras and projectively congruent matrices [PDF]
In this paper we highlight the connection between certain classes of regular subgroups of the affine group $AGL_n(F)$, $F$ a field, and associative nilpotent $F$-algebras of dimension $n$.
Marco Pellegrini
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Computing Segre classes in arbitrary projective varieties [PDF]
We give an algorithm for computing Segre classes of subschemes of arbitrary projective varieties by computing degrees of a sequence of linear projections.
Corey Harris
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Automorphism group schemes of bielliptic and quasi-bielliptic surfaces [PDF]
Bielliptic and quasi-bielliptic surfaces form one of the four classes of minimal smooth projective surfaces of Kodaira dimension $0$. In this article, we determine the automorphism schemes of these surfaces over algebraically closed fields of arbitrary ...
Gebhard Martin
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Chow transformation of coherent sheaves
We define a dual of the Chow transformation of currents on any complex projective manifold. This integral transformation is a factor of a left inverse of the Chow transformation and its composition with the Chow transformation is a right inverse of a ...
Méo Michel
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THE FIRST U-EXTENSION MODULE AS CLASSES OF SHORT U-EXACT SEQUENCES
Inspired by the notions of the U-exact sequence introduced by Davvaz and Parnian-Garamaleky in 1999, and of the chain U-complex introduced by Davvaz and Shabani-Solt in 2002, Mahatma and Muchtadi-Alamsyah in 2017 developed the concept of the U-projective
Yudi Mahatma
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The Projective Special Linear Group PSL(4,2). [PDF]
:The present study deals with conjugacy classes for the projective linear group. The study of conjugacy classes has a great and important role; in hand it is an introductory step to study the general linear group and also the maximal subgroup in it.We ...
Muthana A. Mahmood, Alaa Adnan Auad
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Degrees of iterates of rational maps on normal projective varieties [PDF]
Let X be a normal projective variety defined over an algebraically closed field of arbitrary characteristic. We study the sequence of intermediate degrees of the iterates of a dominant rational selfmap of X , recovering former results by Dinh and Sibony (
Nguyen-Bac Dang
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Proper classes and Gorensteinness in extriangulated categories [PDF]
Extriangulated categories were introduced by Nakaoka and Palu as a simultaneous generalization of exact categories and triangulated categories. A notion of proper class in an extriangulated category is defined in this paper.
Jiangsheng Hu +2 more
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