Pub Date : 2024-07-31DOI: 10.2989/16073606.2024.2374796
Ilinka Dimitrova, Vítor H. Fernandes, Jörg Koppitz
In this paper we consider the monoids of all partial endomorphisms, of all partial weak endomorphisms, of all injective partial endomorphisms, of all partial strong endomorphisms and of all partial...
{"title":"On partial endomorphisms of a star graph","authors":"Ilinka Dimitrova, Vítor H. Fernandes, Jörg Koppitz","doi":"10.2989/16073606.2024.2374796","DOIUrl":"https://doi.org/10.2989/16073606.2024.2374796","url":null,"abstract":"In this paper we consider the monoids of all partial endomorphisms, of all partial weak endomorphisms, of all injective partial endomorphisms, of all partial strong endomorphisms and of all partial...","PeriodicalId":49652,"journal":{"name":"Quaestiones Mathematicae","volume":"44 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141947871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-31DOI: 10.2989/16073606.2024.2385394
Chunyu Lei, Jun Lei, Hongmin Suo
This article concerns the following Bibarmonic elliptic equation with critical growthwhere Ω ⊂ ℝN is a smooth bounded domain , g(x) is a positive continuous function on is a real parameter, is th...
{"title":"Multiple solutions for a Bibarmonic elliptic equation with critical Choquard type nonlinearity","authors":"Chunyu Lei, Jun Lei, Hongmin Suo","doi":"10.2989/16073606.2024.2385394","DOIUrl":"https://doi.org/10.2989/16073606.2024.2385394","url":null,"abstract":"This article concerns the following Bibarmonic elliptic equation with critical growthwhere Ω ⊂ ℝN is a smooth bounded domain , g(x) is a positive continuous function on is a real parameter, is th...","PeriodicalId":49652,"journal":{"name":"Quaestiones Mathematicae","volume":"5 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141947875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-31DOI: 10.2989/16073606.2024.2385424
Dingwen Deng, Zhu-an Wang, Zilin Zhao
The study aims at the development and theoretical analyses of a box method used to solve a kind of hyperbolic equations with shifts. By using the discrete energy method, it is shown that numerical ...
{"title":"The maximum norm error estimate and Richardson extrapolation methods of a second-order box scheme for a hyperbolic-difference equation with shifts","authors":"Dingwen Deng, Zhu-an Wang, Zilin Zhao","doi":"10.2989/16073606.2024.2385424","DOIUrl":"https://doi.org/10.2989/16073606.2024.2385424","url":null,"abstract":"The study aims at the development and theoretical analyses of a box method used to solve a kind of hyperbolic equations with shifts. By using the discrete energy method, it is shown that numerical ...","PeriodicalId":49652,"journal":{"name":"Quaestiones Mathematicae","volume":"28 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141947874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-31DOI: 10.2989/16073606.2024.2379348
Siyabonga S. Dubazana, Simo S. Mthethwa
A J-frame is a pointfree topology counterpart of the concept of a J-space. In this paper, we present a study of some frames satisfying conditions that are stronger (and some that are weaker) than t...
{"title":"On variants and generalizations of J-frames","authors":"Siyabonga S. Dubazana, Simo S. Mthethwa","doi":"10.2989/16073606.2024.2379348","DOIUrl":"https://doi.org/10.2989/16073606.2024.2379348","url":null,"abstract":"A J-frame is a pointfree topology counterpart of the concept of a J-space. In this paper, we present a study of some frames satisfying conditions that are stronger (and some that are weaker) than t...","PeriodicalId":49652,"journal":{"name":"Quaestiones Mathematicae","volume":"10 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141947878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-31DOI: 10.2989/16073606.2024.2374782
Zhao Chen, Shanshan Liu, Liangyun Chen
In this paper, we extend the notion of anti-pre-Lie algebras to the ℤ2-graded version, and introduce the notion of anti-pre-Lie superalgebras. They can be characterized as a class of Lie-admissible...
{"title":"Some results on anti-pre-Lie superalgebras and admissible Novikov superalgebras","authors":"Zhao Chen, Shanshan Liu, Liangyun Chen","doi":"10.2989/16073606.2024.2374782","DOIUrl":"https://doi.org/10.2989/16073606.2024.2374782","url":null,"abstract":"In this paper, we extend the notion of anti-pre-Lie algebras to the ℤ2-graded version, and introduce the notion of anti-pre-Lie superalgebras. They can be characterized as a class of Lie-admissible...","PeriodicalId":49652,"journal":{"name":"Quaestiones Mathematicae","volume":"570 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141969610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-07DOI: 10.2989/16073606.2024.2367072
Mondher Damak, Ekar Sidi Abdalla
In this research paper, a mathematical concept known as the ω-periodic process is discussed, and a new type of processes called the doubly measure pseudo -asymptotically ω-periodic in distribution ...
本文讨论了ω-周期过程这一数学概念,以及一种在分布上被称为双重度量伪-渐近ω-周期过程的新型过程。
{"title":"Measure pseudo S-asymptotically ω-periodic solution in distribution for some stochastic differential equations with Stepanov pseudo S-asymptotically ω-periodic coefficients","authors":"Mondher Damak, Ekar Sidi Abdalla","doi":"10.2989/16073606.2024.2367072","DOIUrl":"https://doi.org/10.2989/16073606.2024.2367072","url":null,"abstract":"In this research paper, a mathematical concept known as the ω-periodic process is discussed, and a new type of processes called the doubly measure pseudo -asymptotically ω-periodic in distribution ...","PeriodicalId":49652,"journal":{"name":"Quaestiones Mathematicae","volume":"188 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141609685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We define a total coalition in a graph G as a pair of disjoint subsets A1,A2 ⊆ A that satisfy the following conditions: (a) neither A1 nor A2 constitutes a total dominating set of G, and (b) A1 ∪ A...
我们将图 G 中的总联盟定义为满足以下条件的一对互不相交的子集 A1,A2 ⊆ A:(a) A1 和 A2 都不构成 G 的总支配集;(b) A1∪A...
{"title":"Total coalitions in graphs","authors":"Saeid Alikhani, Davood Bakhshesh, Hamidreza Golmohammadi","doi":"10.2989/16073606.2024.2365365","DOIUrl":"https://doi.org/10.2989/16073606.2024.2365365","url":null,"abstract":"We define a total coalition in a graph G as a pair of disjoint subsets A1,A2 ⊆ A that satisfy the following conditions: (a) neither A1 nor A2 constitutes a total dominating set of G, and (b) A1 ∪ A...","PeriodicalId":49652,"journal":{"name":"Quaestiones Mathematicae","volume":"32 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141609686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-07DOI: 10.2989/16073606.2024.2365363
Zili Chen, Fu Zhang
In this paper, we show that if H is a Dedekind complete normed Riesz space with the local Egoroff property, then H is lattice isomorphic to an ideal of an AM-space if and only if for any order bou...
在本文中,我们证明了如果 H 是具有局部 Egoroff 属性的 Dedekind 完全规范 Riesz 空间,那么当且仅当对于任意阶 bou...
{"title":"Norm and relative uniform convergence","authors":"Zili Chen, Fu Zhang","doi":"10.2989/16073606.2024.2365363","DOIUrl":"https://doi.org/10.2989/16073606.2024.2365363","url":null,"abstract":"In this paper, we show that if H is a Dedekind complete normed Riesz space with the local Egoroff property, then H is lattice isomorphic to an ideal of an AM-space if and only if for any order bou...","PeriodicalId":49652,"journal":{"name":"Quaestiones Mathematicae","volume":"2 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141609759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-05DOI: 10.2989/16073606.2024.2364301
Michael A. Henning, Mostafa Tavakoli
Let c: V(G) → {1, . . . , ℓ} = [ℓ] be a proper vertex coloring of G and C(i) = {u ∈ V(G): c(u) = i} for i ∈ [ℓ]. The k-color code rk(v|c) of vertex v is the ordered ℓ-tuple (aG(v,C(1)), . . . , aG(...
让 c:v(g) → {1, ., ℓ} = [ℓ] 是 G 的适当顶点着色,且 C(i) = {u ∈ V(G): c(u) = i} for i ∈ [ℓ].顶点 v 的 k 色码 rk(v|c) 是有序的 ℓ 元组(aG(v,C(1)), ., aG(...
{"title":"On (k, ℓ)-locating colorings of graphs","authors":"Michael A. Henning, Mostafa Tavakoli","doi":"10.2989/16073606.2024.2364301","DOIUrl":"https://doi.org/10.2989/16073606.2024.2364301","url":null,"abstract":"Let c: V(G) → {1, . . . , ℓ} = [ℓ] be a proper vertex coloring of G and C(i) = {u ∈ V(G): c(u) = i} for i ∈ [ℓ]. The k-color code rk(v|c) of vertex v is the ordered ℓ-tuple (aG(v,C(1)), . . . , aG(...","PeriodicalId":49652,"journal":{"name":"Quaestiones Mathematicae","volume":"41 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141609653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-05DOI: 10.2989/16073606.2024.2366410
Youssef Azouzi, Marwa Masmoudi
In the recent surge of papers on ergodic theory within Riesz spaces, this article contributes by introducing enhanced characterizations of ergodicity. Our work extends and strengthens prior results...
{"title":"Some characterizations of ergodicity in Riesz spaces","authors":"Youssef Azouzi, Marwa Masmoudi","doi":"10.2989/16073606.2024.2366410","DOIUrl":"https://doi.org/10.2989/16073606.2024.2366410","url":null,"abstract":"In the recent surge of papers on ergodic theory within Riesz spaces, this article contributes by introducing enhanced characterizations of ergodicity. Our work extends and strengthens prior results...","PeriodicalId":49652,"journal":{"name":"Quaestiones Mathematicae","volume":"43 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141614670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}