Results 61 to 70 of about 11,161 (225)

Menentukan pembagi nol pada matriks aas ring komutatif dengan teorema cayley-hamilton [PDF]

, 2003
Tulisan ini membahas pembagi nol pada matriks berukuran nxn yang elemen-elemennya berasal dari ring komutatif R yang dilambangkan dengan Mrsmn(R). Pertama pembahasan teori penunjang meliput ring, ring polinomial, matriks invertibel, polinomial matriks ...
Bagindo , Hari
core  

Tilting Modules Under Special Base Changes

, 2018
Given a non-unit, non-zero-divisor, central element $x$ of a ring $\Lambda$, it is well known that many properties or invariants of $\Lambda$ determine, and are determined by, those of $\Lambda / x \Lambda$ and $\Lambda_x$.
Moradifar, Pooyan, Rajabi, Shahab, Yassemi, Siamak   +2 more
core   +1 more source

Some bounds related to the 2‐adic Littlewood conjecture

Mathematika, Volume 72, Issue 2, April 2026.
Abstract For every irrational real α$\alpha$, let M(α)=supn⩾1an(α)$M(\alpha) = \sup _{n\geqslant 1} a_n(\alpha)$ denote the largest partial quotient in its continued fraction expansion (or ∞$\infty$, if unbounded). The 2‐adic Littlewood conjecture (2LC) can be stated as follows: There exists no irrational α$\alpha$ such that M(2kα)$M(2^k \alpha)$ is ...
Dinis Vitorino, Ingrid Vukusic
wiley   +1 more source

Reducing system of parameters and the Cohen--Macaulay property

, 2007
Let $R$ be a local ring and let ($x_1\biss x_r$) be part of a system of parameters of a finitely generated $R$-module $M,$ where $r < \dim_R M$. We will show that if ($y_1\biss y_r$) is part of a reducing system of parameters of $M$ with $(y_1\biss y_r)M=
Maurer, Bjorn, Stuckrad, Jurgen
core   +1 more source

Equivariant toric geometry and Euler–Maclaurin formulae

Communications on Pure and Applied Mathematics, Volume 79, Issue 3, Page 451-557, March 2026.
Abstract We first investigate torus‐equivariant motivic characteristic classes of toric varieties, and then apply them via the equivariant Riemann–Roch formalism to prove very general Euler–Maclaurin‐type formulae for full‐dimensional simple lattice polytopes.
Sylvain E. Cappell, Laurenţiu Maxim, Jörg Schürmann, Julius L. Shaneson   +3 more
wiley   +1 more source

Group Action on the Set of Nonunits in Rings

Journal of Mathematics, 2023
Let R be a ring, G be the group of all units of R, and X=R−G∪0. In this paper, we investigate avxx∈X=oxx∈X for a ring R, where avx is the set of all vertices of the zero-divisor graph of R adjacent to x.
Eman S. Almotairi, M. Imran Bhat, Ahmad M. Alghamdi   +2 more
doaj   +1 more source

The weakly zero-divisor graph of a commutative ring [PDF]

, 2021
M. J. Nikmehr, Abdolreza Azadi, R. Nikandish   +2 more
openalex   +1 more source

WDVV‐based recursion for open Gromov–Witten invariants

Journal of Topology, Volume 19, Issue 1, March 2026.
Abstract We give a computability result for open Gromov–Witten invariants based on open Witten–Dijkgraaf–Verlinde–Verlinde (WDVV) equations. This is analogous to the result of Kontsevich–Manin for closed Gromov–Witten invariants. For greater generality, we base the argument on a formal object, the Frobenius superpotential, that generalizes several ...
Roi Blumberg, Sara B. Tukachinsky
wiley   +1 more source

Hyperideal-based zero-divisor graph of the general hyperring $ \mathbb{Z}_{n} $

AIMS Mathematics
The aim of this paper is to introduce and study the concept of a hyperideal-based zero-divisor graph associated with a general hyperring. This is a generalized version of the zero-divisor graph associated with a commutative ring.
Mohammad Hamidi, Irina Cristea
doaj   +1 more source

Generalized Irreducible Divisor Graphs [PDF]

, 2013
In 1988, I. Beck introduced the notion of a zero-divisor graph of a commutative rings with $1$. There have been several generalizations in recent years. In particular, in 2007 J. Coykendall and J. Maney developed the irreducible divisor graph.
Mooney, Christopher Park
core