Results 141 to 150 of about 315,833 (178)

Using brain imaging to track problem solving in a complex state space. [PDF]

open access: yesNeuroimage, 2012
Anderson JR   +3 more
europepmc   +1 more source

Neuroanatomical correlates of biological motion detection. [PDF]

open access: yesNeuropsychologia, 2013
Gilaie-Dotan S   +4 more
europepmc   +1 more source

Reduction in Rees Algebra of Modules

Algebras and Representation Theory, 2014
\textit{P. Eakin} and \textit{A. Sathaye} [J. Algebra 41, 439--454 (1976; Zbl 0348.13012)] proved that if \(I\) is an ideal in the local ring \(R\) with infinite residue field such that \(I^n\) can be generated by fewer than \(n+r \choose r\) elements, for some integers \(n\geq 1\) and \(r\geq 0\), then there are elements \(y_1,\dots,y_r\) in \(I ...
Shiv Datt Kumar
exaly   +3 more sources

A D-modules approach on the equations of the Rees algebra [PDF]

open access: yesJournal of Commutative Algebra, 2022
Let I subset of R = F[x(1), x(2)] be a height two ideal minimally generated by three homogeneous polynomials of the same degree d, where F is a field of characteristic zero.
Yairon Cid-Ruiz
exaly   +2 more sources

Rees Algebras of Modules

Proceedings of the London Mathematical Society, 2003
Summary: We study Rees algebras of modules within a fairly general framework. We introduce an approach through the notion of Bourbaki ideals that allows the use of deformation theory. One can talk about the (essentially unique) generic Bourbaki ideal \(I(E)\) of a module \(E\) which, in many situations, allows one to reduce the nature of the Rees ...
Simis, Aron   +2 more
openaire   +1 more source

On the depth of the Rees algebra of an ideal module [PDF]

open access: yesJournal of Algebra, 2010
We study the Rees algebra R(E):=S(E)/τR(S(E)) of an ideal module E⊂G≃Re. We use the technique of Bourbaki ideals introduced by Simis, Ulrich and Vasconcelos (2003) [22] to relate the Rees algebra of a module E to the Rees algebra of an ideal I=I(E)⊂R ...
Santiago Zarzuela
exaly   +2 more sources

REGULARITY OF REES ALGEBRAS

Journal of the London Mathematical Society, 2002
Summary: Let \(B = k[x_1, \ldots, x_n]\) be a polynomial ring over a field \(k\) , and let \(A\) be a quotient ring of \(B\) by a homogeneous ideal \(J\) . Let \(\mathfrak{m}\) denote the maximal graded ideal of \(A\) . Then the Rees algebra \(R = A[{\mathfrak{m}} t]\) also has a presentation as a quotient ring of the polynomial ring \(k[x_1, \ldots ...
Herzog, Jürgen   +2 more
openaire   +2 more sources

On quotients of Rees algebras

Journal of Pure and Applied Algebra, 2023
Following [\textit{V. Barucci} et al., Commun. Algebra 43, No. 1, 130--142 (2015; Zbl 1327.13087); Ark. Mat. 54, No. 2, 321--338 (2016; Zbl 1372.13017)] the authors of the paper, investigate on a family of quadratic quotients of Rees algebras over a commutative ring.
Marco D'Anna   +2 more
openaire   +3 more sources

Rees algebras and their varieties

Publicationes Mathematicae Debrecen, 2022
Following a paper of the reviewer [Publ. Inst. Math., Nouv. Sér. 29(43), 229-239 (1981; Zbl 0491.08002)], a subalgebra B of an algebra A is called a Rees subalgebra whenever there exists a congruence \(\theta\) on A such that \(\in \theta\) if and only if either \(x=y\) or both x, y are elements of B.
Chajda, Ivan, Duda, Jaromír
openaire   +1 more source

Home - About - Disclaimer - Privacy