Results 71 to 80 of about 8,382 (175)

z-ideals in the Semiring ℛ^+(L_τ)

Scientific Annals of Computer Science
Let ℛ^+(L_τ) denote the nonnegative τ-real-continuous function on a topoframe L_τ. We introduce the notion of z-ideals and maximal ideals in the semiring ℛ^+(L_τ) and state some results about them. Also, we show that the topoframe L_τ is a P-topoframe if
Ali Akbar Estaji, Toktam Haghdadi
doaj   +1 more source

Simple Commutative Semirings

Journal of Algebra, 2001
A commutative semiring \(S\) is congruence-simple if and only if one of the following six cases holds: (1) the two-element semirings (which are not listed below), (2) the semiring \(V(G)\) where \(G\) is a multiplicative Abelian group, \(V(G)=G\cup\{0\}\), \(0x=0=x0\), \(x+x=x\), \(x+y=0\) for \(x\neq y\), (3) the semiring \(W(A)\) for any subsemigroup
El Bashir, R, Hurt, J, Jančařı́k, A, Kepka, T   +3 more
openaire   +2 more sources

Universal quadratic forms and Northcott property of infinite number fields

Journal of the London Mathematical Society, Volume 110, Issue 5, November 2024.
Abstract We show that if a universal quadratic form exists over an infinite degree, totally real extension of the field of rationals Q$\mathbb {Q}$, then the set of totally positive integers in the extension does not have the Northcott property. In particular, this implies that no universal form exists over the compositum of all totally real Galois ...
Nicolas Daans, Vítězslav Kala, Siu Hang Man   +2 more
wiley   +1 more source

Patterns, timing, and environmental drivers of growth in two coexisting green‐stemmed Mediterranean alpine shrubs species

New Phytologist, Volume 241, Issue 1, Page 114-130, January 2024.
Summary The Mediterranean alpine is one of the most vulnerable ecosystems under future environmental change. Yet, patterns, timing and environmental controls of plant growth are poorly investigated. We aimed at an improved understanding of growth processes, as well as stem swelling and shrinking patterns, by examining two common coexisting green ...
Eike Corina Albrecht, Svenja Dobbert, Roland Pape, Jörg Löffler   +3 more
wiley   +1 more source

Derivation dα,β of ordered G-semirings [PDF]

Mathematica Moravica, 2018
In this paper, we introduce the concept of derivation dα,β of ordered G-semiring. We study some of the properties of derivation dα,β of ordered G-semirings.
Murali Krishna Rao Marapureddy, Kumar Rajendr Kona, Venkateswarlu Bolineni, Bandaru Ravi Kumar   +3 more
doaj  

Mechanical Response and Control Measures of Pile Foundations under Close‐Range Shield Tunneling in Water‐Rich Sandy Pebble Strata

Advances in Civil Engineering, Volume 2024, Issue 1, 2024.
By relying on the foundation engineering of pile foundations for the Chengdu Metro Line 27 shield tunneling through interchange bridges, three‐dimensional numerical simulation results are used to verify field measurements. This study investigates the horizontal displacement, vertical displacement, and stress characteristics of the pile foundation ...
Yanpeng Du, Peng Zhang, Jiabing Zhang, Wangjie Wu   +3 more
wiley   +1 more source

Semiring Provenance for B\"uchi Games: Strategy Analysis with Absorptive Polynomials [PDF]

Logical Methods in Computer Science
This paper presents a case study for the application of semiring semantics for fixed-point formulae to the analysis of strategies in B\"uchi games. Semiring semantics generalizes the classical Boolean semantics by permitting multiple truth values from ...
Erich Grädel, Niels Lücking, Matthias Naaf   +2 more
doaj   +1 more source

On implementation of Stickel's key exchange protocol over max-min and max-T semirings

Journal of Mathematical Cryptology
Given that the tropical Stickel protocol and its variants are all vulnerable to the generalized Kotov–Ushakov attack, we suggest employing the max-min semiring and, more generally, max-TT semiring where the multiplication is based on a TT-norm, as a ...
Alhussaini Sulaiman, Sergeev Sergeĭ
doaj   +1 more source

Tropical semirings

, 1998
This article has been published in the proceedings of the "Idempotency" conference, organized by Jeremy Gunawardena in Bristol in october 1994. The aim of this paper is to present the tropical semirings and to survey a few problems relevant to them.
openaire   +2 more sources

Ordered Left Almost ⋇‐Semihypergroups Based on Fuzzy Sets

Journal of Mathematics, Volume 2024, Issue 1, 2024.
The concept of an involution or anti‐involution is a self‐inverse linear mapping that plays a prominent role in the theory of algebraic structures, particularly rings, hyperrings, ordered semigroups, and ordered semihypergroups. Nowadays, the study of involutions in ordered hyperstructures is a particular area of research in the field of hyperstructure
Nabilah Abughazalah, Naveed Yaqoob, Tareq Al-shami   +2 more
wiley   +1 more source