Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Frank-Olaf Schreyer"'
Autor:
Thomas Peternell, Frank-Olaf Schreyer
The series is aimed specifically at publishing peer reviewed reviews and contributions presented at workshops and conferences. Each volume is associated with a particular conference, symposium or workshop. These events cover various topics within pur
Autor:
Frank-Olaf Schreyer
Publikováno v:
Moduli of Vector Bundles ISBN: 9781003419983
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e38dcd30c76c327f277592d9931fb28c
https://doi.org/10.1201/9781003419983-16
https://doi.org/10.1201/9781003419983-16
Autor:
Frank-Olaf Schreyer
Publikováno v:
Mathematische Zeitschrift. 300:1351-1358
We prove an analogue of Horrocks’ splitting theorem for Segre–Veronese varieties building upon the theory of Tate resolutions on products of projective spaces.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10bfe43739d048d036179fae89cab8c8
https://doi.org/10.1007/s00209-021-02781-z
https://doi.org/10.1007/s00209-021-02781-z
Publikováno v:
Journal of Algebra. 571:15-31
We study Betti numbers of graded finitely generated modules over a quadratic complete intersection. In the case of codimension 1, we give a natural class of quadratic forms Q whose Clifford algebras are division rings, and deduce the possible Betti n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49dd3cb82bc1710bb8d23c5f0c462f0c
https://doi.org/10.1016/j.jalgebra.2019.11.031
https://doi.org/10.1016/j.jalgebra.2019.11.031
Autor:
Frank-Olaf Schreyer, David Eisenbud
Publikováno v:
Commutative Algebra. :35-47
Let M M be a finitely generated Cohen-Macaulay module of codimension m m over a Gorenstein Ring R = S / I R = S/I , where S S is a regular ring. We show how to form a quasi-isomorphism ϕ \phi from an R R -free resolution of M M to the dual of an R R
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::981f41364828dc27a8abe35da9e772c1
https://doi.org/10.1090/conm/773/15531
https://doi.org/10.1090/conm/773/15531
Autor:
Christian Bopp, Frank-Olaf Schreyer
Publikováno v:
Experimental Mathematics. 30:475-480
Based on computer algebra experiments we formulate a refined version of Green’s conjecture and a conjecture of Schicho–Schreyer–Weimann which conjecturally also holds in positive characteristic. Th...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76d7f4761dcfc2de217ad8838753207f
https://doi.org/10.1080/10586458.2019.1576082
https://doi.org/10.1080/10586458.2019.1576082
Publikováno v:
Proceedings of the American Mathematical Society. 147:2857-2861
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afd6c1b8ac0ebd4d332de7d1ebd2f553
https://doi.org/10.1090/proc/14480
https://doi.org/10.1090/proc/14480
Autor:
David Eisenbud, Frank-Olaf Schreyer
Publikováno v:
Acta Mathematica Vietnamica. 44:3-29
We describe the equations and Grobner bases of some degenerate K3 surfaces associated to rational normal scrolls. These K3 surfaces are members of a class of interesting singular projective varieties we call correspondence scrolls. The ideals of thes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ec7013e37118ba2def1ab4d8be0c448
https://doi.org/10.1007/s40306-018-00309-y
https://doi.org/10.1007/s40306-018-00309-y
Publikováno v:
Proceedings of the Annual ACM-SIAM Symposium on Discrete Algorithms
Scopus-Elsevier
Scopus-Elsevier
We consider the orbit closure containment problem, which, for a given vector and a group orbit, asks if the vector is contained in the closure of the group orbit. Recently, many algorithmic problems related to orbit closures have proved to be quite u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a37e81f4657988cb13d2426e142e7d8a
https://doi.org/10.1137/1.9781611976465.152
https://doi.org/10.1137/1.9781611976465.152
Autor:
Frank-Olaf Schreyer, Hamid Damadi
Publikováno v:
Archiv der Mathematik. 109:511-519
In this paper we prove that the Hurwitz space $$\mathcal {H}_{9,8}$$ , which parameterizes 8-sheeted covers of $${\mathbb P }^1$$ by curves of genus 9, is unirational. Our construction leads to an explicit Macaulay2 code, which will randomly produce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::802299e90d8fc064e78602c141dc3126
https://doi.org/10.1007/s00013-017-1095-3
https://doi.org/10.1007/s00013-017-1095-3