Results 51 to 60 of about 448 (126)

Hyperideal theory in ordered Krasner hyperrings

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2019
In this paper, we study some properties of ordered Krasner hyper-rings. Also we state some definitions and basic facts and prove some results on ordered Krasner hyperring (R, +, ·, ≤).
Omidi Saber, Davvaz Bijan
doaj   +1 more source

On Pure Hyperideals In Ternary Semihypergroups [PDF]

open access: yes, 2013
This paper deals with a class of algebraic hyperstructures called ternarysemihypergroups, which are a generalization of ternary semigroups. In this paper weintroduce some special classes of hyperideals in ternary semihypergroups.
Kostaq HILA, Krisanthi NAKA
core  

Infinitesimal rigidity of a compact hyperbolic 4-orbifold with totally geodesic boundary

open access: yes, 2008
Kerckhoff and Storm conjectured that compact hyperbolic n-orbifolds with totally geodesic boundary are infinitesimally rigid when n>3. This paper verifies this conjecture for a specific example based on the 4-dimensional hyperbolic 120-cell.Comment: 9 ...
Calabi   +6 more
core   +1 more source

Polyhedral hyperbolic metrics on surfaces [PDF]

open access: yes, 2018
Let S be a topologically finite surface, and g be a hyperbolic metric on S with a finite number of conical singularities of positive singular curvature, cusps and complete ends of infinite area. We prove that there exists a convex polyhedral surface P in
Fillastre, François
core  

6j-symbols, hyperbolic structures and the Volume Conjecture

open access: yes, 2007
We compute the asymptotical growth rate of a large family of $U_q(sl_2)$ $6j$-symbols and we interpret our results in geometric terms by relating them to volumes of hyperbolic truncated tetrahedra.
Francesco Costantino   +5 more
core   +6 more sources

The L-ordered L-semihypergroups

open access: yesOpen Mathematics, 2020
This study pursues an investigation on L-semihypergroups equipped with an L-order. First, the concept of L-ordered L-semihypergroups is introduced by L-posets and L-semihypergroups, and some related results are obtained.
Su Shuhua, Liu Fuyao, Yang Shuqun
doaj   +1 more source

Réalisation de métriques sur les surfaces compactes [PDF]

open access: yes, 2006
Un polyèdre fuchsien de l'espace hyperbolique est une surface polyèdrale invariante sous l'action d'un groupe fuchsien d'isométries (c.a.d. un groupe d'isométries qui laissent globalement invariante une surface totalement géodésique et sur laquelle il ...
Colbois, Bruno   +2 more
core  

Classes of fuzzy hyperideals

open access: yesFilomat, 2016
In this paper we study fuzzy hyperideals of a fuzzy hyperring, we define and analyze two particular kinds of fuzzy hyperideals, which extend similar notions of ring context, namely prime fuzzy hyperideals and maximal fuzzy hyperideals. Moreover, we study the hyperideal transfer through a fuzzy hyperring homomorphism, particularly for prime ...
Maedeh Motameni   +2 more
openaire   +2 more sources

Basic notions and properties of ordered semihyperrings [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2016
In this paper, we introduce the concept of semihyperring $(R,+,cdot)$ together with a suitable partial order $le$. Moreover, we introduce and study hyperideals in ordered semihyperrings. Simple ordered semihyperrings are defined and its characterizations
B. Davvaz, S. Omidi
doaj  

Multiplicative hyperring of fractions and coprime hyperideals

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2017
In this paper we will introduce the notion of coprime hyperideals in multiplicative hyperrings and we will show some properties of them. Then we introduce the notion of hyperring of fractions generated by a multiplicative hyperring and then we will show ...
Ameri R., Kordi A., Hoskova-Mayerova S.
doaj   +1 more source

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