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On the Gorenstein property of the fiber cone to filtration
(HikariRuse, 2014)
Let (A,m) be a Noetherian local ring and F = '('I IND.N') IND.N≥0' a filtration. In this paper, we study the Gorenstein properties of the fiber cone F(F), where F is a Hilbert filtration. Suppose that F(F) and G(F) are ...
Crossed products by twisted partial actions and graded algebras
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2008)
For a twisted partial action e of a group G on an (associative non-necessarily unital) algebra A over a commutative unital ring k, the crossed product A x(Theta) G is proved to be associative. Given a G-graded k-algebra B ...
Picard-graded betti numbers and the defining ideals of cox rings
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2009)
Ideales de polinomios asociados a estructuras algebráicas de dimensión finita
(2017-03)
Fijados un espacio vectorial de dimensión finita y una base, podemos adicionarle un producto bilineal resultando así un álgebra. Si además requerimos que nuestra álgebra se satisfaga alguna propiedad podemos encontrar ...
Optimal operating conditions for an optical ring sensor system to size fruits and vegetables
(American Society of Agricultural and Biological Engineers, 2005)
This work reports on the determination of the optimal operating conditions for an optical ring sensor system as a first step in its use for fruits and vegetable sizing. The system was comprised of a singulator which fed ...
A álgebra graduada associada a uma valorização
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Matemática - PPGMCâmpus São Carlos, 2021-11-30)
We begin this work with a study of the graded algebra associated to a valuation $\nu: K \longrightarrow \Gamma_{\infty}$. We verify that in the cases where the value group is free or the residue field is closed by radicals, ...