Results 21 to 30 of about 180 (93)

On Annihilating - Ideal Graph of Zn

open access: yes, 2018
In this paper, we study and give some properties of annihilating-ideal graphs of Zn, also we find Hosoya polynomial and Wiener index for this ...
Husam Mohammad, Sahbaa Younus
core   +1 more source

The geometry of zonotopal algebras II: Orlik–Terao algebras and Schubert varieties

open access: yesProceedings of the London Mathematical Society, Volume 132, Issue 6, June 2026.
Abstract Zonotopal algebras, introduced by Postnikov–Shapiro–Shapiro, Ardila–Postnikov, and Holtz–Ron, show up in many different contexts, including approximation theory, representation theory, Donaldson–Thomas theory, and hypertoric geometry. In the first half of this paper, we construct a perfect pairing between the internal zonotopal algebra of a ...
Colin Crowley, Nicholas Proudfoot
wiley   +1 more source

Lorentzian homogeneous structures with indecomposable holonomy

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 5, May 2026.
Abstract For a Lorentzian homogeneous space, we study how algebraic conditions on the isotropy group affect the geometry and curvature of the homogeneous space. More specifically, we prove that a Lorentzian locally homogeneous space is locally isometric to a plane wave if it admits an Ambrose–Singer connection with indecomposable, non‐irreducible ...
Steven Greenwood, Thomas Leistner
wiley   +1 more source

A Graded Zero‐Divisor Graph Arising From Group‐Graded Modules

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
In this paper, we introduce a graded zero‐divisor graph for group‐graded modules, where the vertices are homogeneous elements and edges connect distinct vertices according to a natural graded relation. We investigate its main properties, such as connectivity and girth, and compare these graphs with their ungraded counterparts.
Fida Moh’d   +4 more
wiley   +1 more source

The co-annihilating graph of a commutative ring

open access: yes, 2018
Let [Formula: see text] be a commutative ring with identity and [Formula: see text] be the set of all non-zero non-units of [Formula: see text]. The co-annihilating graph of [Formula: see text], denoted by [Formula: see text], is a graph with vertex set
J. Amjadi, A. Alilou
core   +1 more source

A Spatiotemporal Pathformer‐Based Deep Learning Framework for Watershed Flood Forecasting

open access: yesWater Resources Research, Volume 61, Issue 12, December 2025.
Abstract Effective flood forecasting is essential for implementing proactive flood management and risk reduction strategies. However, conventional artificial neural networks often fail to capture the complex spatiotemporal dependencies among hydrometeorological variables, resulting in system biases and time‐lag errors, especially during extreme flood ...
Tianyu Xia   +5 more
wiley   +1 more source

THE ANNIHILATING-IDEAL GRAPH OF COMMUTATIVE RINGS II

open access: yes, 2011
In this paper we continue our study of annihilating-ideal graph of commutative rings, that was introduced in (The annihilating-ideal graph of commutative rings I, to appear in J. Algebra Appl.). Let R be a commutative ring with 𝔸(R) be its set of ideals
M. BEHBOODI, Z. RAKEEI
core   +1 more source

Remarks on some infinitesimal symmetries of Khovanov–Rozansky homologies in finite characteristic

open access: yesBulletin of the London Mathematical Society, Volume 57, Issue 11, Page 3597-3613, November 2025.
Abstract We give a new proof of a theorem due to Shumakovitch and Wang on base point independence of Khovanov–Rozansky homology in characteristic p$p$. Some further symmetries of gl(p)$\mathfrak {gl}(p)$‐homology in characteristic p$p$ are also discussed.
You Qi   +3 more
wiley   +1 more source

The sum-annihilating essential ideal graph of a commutative‎ ‎ring

open access: yes, 2016
Let $R$ be a commutative ring with identity‎. ‎An ideal $I$ of a ring $R$‎ ‎is called an annihilating ideal if there exists $r\in R\setminus \{0\}$ such that $Ir=(0)$ and an ideal $I$ of‎ ‎$R$ is called an essential ideal if $I$ has non-zero ...
J‎. ‎Amjadi, A‎. ‎Alilou
core   +1 more source

Diffusion-limited annihilating systems and the increasing convex order

open access: yes, 2022
We consider diffusion-limited annihilating systems with mobile $A$-particles and stationary $B$-particles placed throughout a graph. Mutual annihilation occurs whenever an $A$-particle meets a $B$-particle.
Johnson, Tobias   +3 more
core   +1 more source

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