Bulletin of the Malaysian Mathematical Sciences Society最新文献_第10页

Global Attractors for the Three-Dimensional Tropical Climate Model with Damping Terms 带阻尼项的三维热带气候模型的全球吸引子

IF 1.2 3区数学

Bulletin of the Malaysian Mathematical Sciences Society Pub Date : 2024-02-29 DOI: 10.1007/s40840-024-01667-7

Rongyan Mao, Hui Liu, Fahe Miao, Jie Xin

引用次数: 0

On the Pre-Schwarzian Norm of Certain Logharmonic Mappings 论某些对数谐波映射的前施瓦茨规范

IF 1.2 3区数学

Bulletin of the Malaysian Mathematical Sciences Society Pub Date : 2024-02-27 DOI: 10.1007/s40840-024-01668-6

Md Firoz Ali, Sushil Pandit

引用次数: 0

The Relation Between the Harmonic Index and Some Coloring Parameters 谐波指数与一些着色参数之间的关系

IF 1.2 3区数学

Bulletin of the Malaysian Mathematical Sciences Society Pub Date : 2024-02-27 DOI: 10.1007/s40840-024-01662-y

Dazhi Lin

引用次数: 0

Two Relaxed CQ Methods for the Split Feasibility Problem with Multiple Output Sets 多输出集分割可行性问题的两种松弛 CQ 方法

IF 1.2 3区数学

Bulletin of the Malaysian Mathematical Sciences Society Pub Date : 2024-02-27 DOI: 10.1007/s40840-023-01647-3

Nguyen Thi Thu Thuy, Tran Thanh Tung

引用次数: 0

Proximal Subgradient Algorithm for a Class of Nonconvex Bilevel Equilibrium Problems 一类非凸双层平衡问题的近端梯度算法

IF 1.2 3区数学

Bulletin of the Malaysian Mathematical Sciences Society Pub Date : 2024-02-26 DOI: 10.1007/s40840-024-01664-w

引用次数: 0

On Submanifolds as Riemann Solitons 论作为黎曼孤子的子实体

IF 1.2 3区数学

Bulletin of the Malaysian Mathematical Sciences Society Pub Date : 2024-02-21 DOI: 10.1007/s40840-024-01661-z

Adara M. Blaga, Cihan Özgür

引用次数: 0

Variational Principle for Topological Pressure on Subsets of Non-autonomous Dynamical Systems 非自治动态系统子集拓扑压力的变分原理

IF 1.2 3区数学

Bulletin of the Malaysian Mathematical Sciences Society Pub Date : 2024-02-21 DOI: 10.1007/s40840-024-01656-w

Javad Nazarian Sarkooh

{"title":"Variational Principle for Topological Pressure on Subsets of Non-autonomous Dynamical Systems","authors":"Javad Nazarian Sarkooh","doi":"10.1007/s40840-024-01656-w","DOIUrl":"https://doi.org/10.1007/s40840-024-01656-w","url":null,"abstract":"This paper discusses a variational principle on subsets for topological pressure of non-autonomous dynamical systems. Let ((X, f_{1,infty })) be a non-autonomous dynamical system and (psi ) be a continuous potential on X, where (X, d) is a compact metric space and (f_{1,infty }=(f_n)_{n=1}^infty ) is a sequence of continuous maps (f_n: Xrightarrow X). We define the Pesin–Pitskel topological pressure (P_{f_{1,infty }}^{B}(Z,psi )) and weighted topological pressure (P_{f_{1,infty }}^{mathcal {W}}(Z,psi )) for any subset Z of X. Also, we define the measure-theoretic pressure (P_{mu ,f_{1,infty }}(X,psi )) for any (mu in mathcal {M}(X)), where (mathcal {M}(X)) denotes the set of all Borel probability measures on X. Then, for any nonempty compact subset Z of X, we show the following variational principle for topological pressure $$begin{aligned} P_{f_{1,infty }}^{B}(Z,psi )=P_{f_{1,infty }}^{mathcal {W}}(Z,psi )=sup {P_{mu ,f_{1,infty }}(X,psi ):mu in mathcal {M}(X), mu (Z)=1}. end{aligned}$$Moreover, we show that the Pesin–Pitskel topological pressure and weighted topological pressure can be determined by the measure-theoretic pressure of Borel probability measures. In particular, we have the same results for topological entropy.\u0000","PeriodicalId":50718,"journal":{"name":"Bulletin of the Malaysian Mathematical Sciences Society","volume":"17 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139951950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phase Retrieval in Quaternion Euclidean Spaces 四元数欧几里得空间中的相位检索

IF 1.2 3区数学

Bulletin of the Malaysian Mathematical Sciences Society Pub Date : 2024-02-19 DOI: 10.1007/s40840-024-01660-0

Ming Yang, Yun-Zhang Li

{"title":"Phase Retrieval in Quaternion Euclidean Spaces","authors":"Ming Yang, Yun-Zhang Li","doi":"10.1007/s40840-024-01660-0","DOIUrl":"https://doi.org/10.1007/s40840-024-01660-0","url":null,"abstract":"Quaternion algebra is a noncommutative associative algebra. Noncommutativity limits the flexibility of computation and makes analysis related to quaternions nontrivial and challenging. Due to its applications in signal analysis and image processing, quaternionic Fourier analysis has received increasing attention in recent years. This paper addresses phase retrievability in quaternion Euclidean spaces ({mathbb {H}}^{M}). We obtain a sufficient condition on phase retrieval frames for quaternionic left Hilbert module (big ({mathbb {H}}^{M},,(cdot ,,cdot )big )) of the form ({e_{m}T_{n}g}_{m,,nin {mathbb {N}}_{M}}), where ({e_{m}}_{min {mathbb {N}}_{M}}) is an orthonormal basis for (big ({mathbb {H}}^{M},,(cdot ,,cdot )big )) and ((cdot ,,cdot )) is the Euclidean inner product on ({mathbb {H}}^{M}). It is worth noting that ({e_{m}}_{min {mathbb {N}}_{M}}) is not necessarily (left{ frac{1}{sqrt{M}}e^{frac{2pi imcdot }{M}}right} _{min {mathbb {N}}_{M}}), and that our method also applies to phase retrievability in ({mathbb {C}}^{M}). For the real Hilbert space (big ({mathbb {H}}^{M},,langle cdot ,,cdot rangle big )) induced by (big ({mathbb {H}}^{M},,(cdot ,,cdot )big )), we present a sufficient condition on phase retrieval frames ({e_{m}T_{n}g}_{min {mathbb {N}}_{4M},,nin {mathbb {N}}_{M}}), where ({e_{m}}_{min {mathbb {N}}_{4M}}) is an orthonormal basis for (big ({mathbb {H}}^{M},,langle cdot ,,cdot rangle big )). We also give a method to construct and verify general phase retrieval frames for (big ({mathbb {H}}^{M},,langle cdot ,,cdot rangle big )). Finally, some examples are provided to illustrate the generality of our theory.","PeriodicalId":50718,"journal":{"name":"Bulletin of the Malaysian Mathematical Sciences Society","volume":"10 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139923993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Blow-up Analysis to a Quasilinear Chemotaxis System with Nonlocal Logistic Effect 对具有非局部逻辑效应的准线性趋化系统的炸毁分析

IF 1.2 3区数学

Bulletin of the Malaysian Mathematical Sciences Society Pub Date : 2024-02-15 DOI: 10.1007/s40840-024-01659-7

Chang-Jian Wang, Jia-Yue Zhu

{"title":"Blow-up Analysis to a Quasilinear Chemotaxis System with Nonlocal Logistic Effect","authors":"Chang-Jian Wang, Jia-Yue Zhu","doi":"10.1007/s40840-024-01659-7","DOIUrl":"https://doi.org/10.1007/s40840-024-01659-7","url":null,"abstract":"In this paper, we consider the following quasilinear chemotaxis system involving nonlocal effect $$begin{aligned} left{ begin{array}{ll} u_{t}=nabla cdot (varphi (u)nabla u)-nabla cdot (unabla v)+mu u left( 1-int _{Omega }u^{alpha }text {d}xright) , {} &{} xin Omega , t>0,[2.5mm] 0=Delta v-m(t)+u, m(t)=frac{1}{|Omega |}int _{Omega } u(x,t)text {d}x, {} &{} xin Omega , t>0,[2.5mm] u(x,0)=u_{0}(x), {} &{} xin Omega , end{array} right. end{aligned}$$where (Omega =B_{R}(0)subset {mathbb {R}}^n (nge 3)) with (R>0,) the parameters (mu , alpha ) are positive constants and diffusion function ( varphi (u)le C_{0}(1+u)^{-m}) for all (uge 0) with (C_{0}>0) and (m> -1.) It has been shown that if $$begin{aligned} 0<alpha <min left{ 2,frac{n}{2},frac{n(m+1)}{2}right} , end{aligned}$$then there exist suitable initial data (u_{0}) such that the corresponding radially symmetric solution blows up in finite time. In this work, we extend the blow-up result established by previous researchers.","PeriodicalId":50718,"journal":{"name":"Bulletin of the Malaysian Mathematical Sciences Society","volume":"49 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139768167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Positive Solution for a Weighted p-Laplace Equation with Hardy–Sobolev’s Critical Exponent 具有哈代-索博列夫临界指数的加权 p 拉普拉斯方程的正解

IF 1.2 3区数学

Bulletin of the Malaysian Mathematical Sciences Society Pub Date : 2024-02-15 DOI: 10.1007/s40840-024-01657-9

Abdolrahman Razani, Gustavo S. Costa, Giovany M. Figueiredo

引用次数: 0