Results 51 to 60 of about 2,933 (156)

GL‐algebras in positive characteristic II: The polynomial ring

open access: yesProceedings of the London Mathematical Society, Volume 131, Issue 6, December 2025.
Abstract We study GL$\mathbf {GL}$‐equivariant modules over the infinite variable polynomial ring S=k[x1,x2,…,xn,…]$S = k[x_1, x_2, \ldots, x_n, \ldots]$ with k$k$ an infinite field of characteristic p>0$p > 0$. We extend many of Sam–Snowden's far‐reaching results from characteristic zero to this setting.
Karthik Ganapathy
wiley   +1 more source

αcc-Baer Rings

open access: yes, 2015
Let α denote an infinite cardinal or ∞ which is used to signify no cardinal constraint. This work introduces the concept of an αcc-Baer ring and demonstrates that a commutative semiprime ring A with identity is αcc-Baer if and only if Spec(A) is αcc ...
McGovern, Warren William   +3 more
core   +1 more source

How Population Structure and Nest Membership Shape Pathogen Patterns in Bumble Bees

open access: yesMolecular Ecology, Volume 34, Issue 22, November 2025.
ABSTRACT Host density, genetic diversity and social groups are key factors influencing pathogen transmission in wildlife populations, but their interactions remain poorly understood in insects. Islands can provide natural laboratories with distinct populations that vary in density and genetic diversity, whereby dense, genetically homogeneous ...
Jana Dobelmann, Lena Wilfert
wiley   +1 more source

Green banks versus non‐green banks: A financial stability comparative analysis in terms of CAMEL ratios

open access: yesInternational Journal of Finance &Economics, Volume 30, Issue 3, Page 2536-2573, July 2025.
Abstract This study examines green and non‐green‐banks from a financial stability point of view and specifically whether there are any discernible performance differences between the two groups. Using the supervisory ratios namely CAMEL variables, and employing panel data techniques (random effects model) and a global panel data set of 165 banks from ...
Ioannis Malandrakis, Konstantinos Drakos
wiley   +1 more source

Distribution of follow‐up sessions influences determinations of skill maintenance

open access: yesJournal of Applied Behavior Analysis, Volume 58, Issue 3, Page 547-559, Summer 2025.
Abstract Maintenance refers to the persistence of behavior change over time after some or all instruction has been discontinued. The distribution of follow‐up sessions can affect the frequency of practice opportunities in the absence of ongoing instruction and determinations of maintenance based on how often performance is assessed.
Molly K. Mutchler, Sacha T. Pence
wiley   +1 more source

A Practical Separation of Oceanic Vortical and Wavy Motions Entangled in the SWOT Measurements

open access: yesGeophysical Research Letters, Volume 52, Issue 12, 28 June 2025.
Abstract The recently launched Surface Water and Ocean Topography (SWOT) satellite provides an unprecedented two‐dimensional measurement of the sea surface height (SSH) down to the oceanic submesoscale of 1–10 km. Using this measurement to make substantial progress requires the separation of vortical and wavy motions owing to their contrasting ...
Chuanyin Wang   +5 more
wiley   +1 more source

Primitive near-rings [PDF]

open access: yes, 1970
The theory of near-rings has arisen in a variety of ways. There is a natural desire to generalise the theory of rings and skew fields by relaxing some of their defining axioms.
Holcombe, William Michael Lloyd
core  

Biomass‐Derived Carbon Nanomaterials: Synthesis and Applications in Textile Wastewater Treatment, Sensors, Energy Storage, and Conversion Technologies

open access: yesCleanMat, Volume 2, Issue 1, Page 4-58, April 2025.
Biomass Sources, synthesis techniques, structures, applications, and contribution toward SDG goals of biomass‐derived carbon nanomaterials. ABSTRACT Plant life has dominated this planet from the beginning of time. With over 82% of biomass (BM) coming from plants, primarily trees, plants are the dominant form of life on Earth.
A. F. M. Fahad Halim   +5 more
wiley   +1 more source

FEEBLY BAER RINGS AND MODULES

open access: yes, 2014
A right module M over a ring R is called feebly Baer if, whenever xa = 0 with x is an element of M and a is an element of R, there exists e(2) = e is an element of R such that xe = 0 and ea = a.
Zhou, Yiqiang   +2 more
core   +1 more source

Polynomial extensions of cP-Baer rings

open access: yes, 2023
Birkenmeier and Heider, in [2], say that a ring R is right cP-Baer if the right annihilator of a cyclic projective right R-module in R is generated by an idempotent. These rings are a generalization of the right p.q.-Baer and abelian rings.
Moussavi, Ahmad, Aramideh, Nasibeh
core  

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