Autor:	Greco, Ornella, Martino, Ivan
Rok vydání:	2017
Předmět:	Mathematics - Commutative Algebra Mathematics - Combinatorics 13D02 13D40 05E40 13C14
Druh dokumentu:	Working Paper
Popis:	In this work, we study the Betti numbers of pinched Veronese rings, by means of the reduced homology of squarefree divisor complexes. We characterize when these rings are Cohen-Macaulay and we the study the shape of the Betti tables for the pinched Veronese in the two variables. As a byproduct we obtain information on the linearity of such rings. Moreover, in the last section we compute the canonical modules of the Veronese modules. Comment: 17 pages, 2 figures, The second version contains the results on the linearity for the pinched Veronese rings in two variables
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1709.10461 Zobrazit plný text záznamu View this record from Arxiv