Results 31 to 40 of about 88,501 (223)
A Note On Zeroes Of Superpotentials In F-Theory [PDF]
, 1996 We discuss the dependence of superpotential terms in 4D F-theory on moduli parameters. Two cases are studied: the dependence on world-filling 3-brane positions and the dependence on 2-form VEVs. In the first case there is a zero when the 3-brane hits the
Griffiths, Ori J. Ganor, Townsend
core +2 more sources
Perinormal rings with zero divisors [PDF]
Journal of Algebra and Its Applications, 2018 We extend, to rings with zero divisors, the study of perinormal domains initiated by Epstein and Shapiro. We say that a ring [Formula: see text] is perinormal if whenever a ring [Formula: see text] situated between [Formula: see text] and the total quotient ring of [Formula: see text] satisfies going down over [Formula: see text], it follows that ...
Anam Rani, Tiberiu Dumitrescu
openaire +3 more sources
Open Mathematics, 2015 Recently, an interest is developed in estimating genus of the zero-divisor graph of a ring. In this note we investigate genera of graphs of a class of zero-divisor rings (a ring in which every element is a zero divisor).
Nauman Syed Khalid, Shafee Basmah H.
doaj +1 more source
Exploring the properties of the zero-divisor graph of direct product of $\ast$-rings [PDF]
Journal of Mahani Mathematical ResearchIn this paper, we delve into the study of zero-divisor graphs in rings equipped with an involution. Specifically, we focus on abelian Rickart $\ast$-rings.
Mohd Nazim +2 more
doaj +1 more source
On graphs associated to ring of Guassian integers and ring of integers modulo n
Acta Universitatis Sapientiae: Informatica, 2022 For a commutative ring R with identity 1, the zero-divisor graph of R, denoted by Γ(R), is a simple graph whose vertex set is the set of non-zero zero divisors Z*(R) and the two vertices x and y ∈ Z*(R) are adjacent if and only if xy = 0.
Pirzada S., Bhat M. Imran
doaj +1 more source
Zero-divisor graphs of twisted partial skew generalized power series rings [PDF]
Arab Journal of Mathematical Sciences, 2022 Purpose – The aim of this paper is to investigate the relationship between the ring structure of the twisted partial skew generalized power series ring RG,≤;Θ and the corresponding structure of its zero-divisor graph Γ̅RG,≤;Θ. Design/methodology/approach
Mohammed H. Fahmy +2 more
doaj +1 more source
Directed zero-divisor graph and skew power series rings [PDF]
Transactions on Combinatorics, 2018 Let $R$ be an associative ring with identity and $Z^{\ast}(R)$ be its set of non-zero zero-divisors. Zero-divisor graphs of rings are well represented in the literature of commutative and non-commutative rings. The directed zero-divisor graph of $R$
Ebrahim Hashemi +2 more
doaj +1 more source
Rational Formulas for Traces in zero-dimensional Algebras [PDF]
, 2008 We present a rational expression for the trace of the multiplication map M_r in a finite-dimensional algebra of the form A:=K[x_1,...,x_n]/I in terms of the generalized Chow form of I.
D'Andrea, Carlos, Jeronimo, Gabriela
core +1 more source
The class of the affine line is a zero divisor in the Grothendieck ring: an improvement [PDF]
, 2016 Lev A. Borisov has shown that the class of the affine line is a zero divisor in the Grothendieck ring of algebraic varieties over complex numbers. We improve the final formula by removing a factor.Comment: Comptes Rendus Math\'ematique, Elsevier Masson ...
Martin, Nicolas
core +3 more sources
Singular spin structures and superstrings
Journal of High Energy Physics, 2023 There are two main problems in finding the higher genus superstring measure. The first one is that for g ≥ 5 the super moduli space is not projected. Furthermore, the supermeasure is regular for g ≤ 11, a bound related to the source of singularities due ...
Marco Matone
doaj +1 more source