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Cauchy problem for Jordan-Moore-Gibson-Thompson equations of nonlinear acoustics with fractional operators 分数算子非线性声学Jordan-Moore-Gibson-Thompson方程的Cauchy问题
Analele Stiintifice Ale Universitatii Al I Cuza Din Iasi - Matematica Pub Date : 2023-01-01 DOI: 10.47743/anstim.2023.00010
Rabah Djemiat, Bilal Basti, Noureddine Benhamidouche
{"title":"Cauchy problem for Jordan-Moore-Gibson-Thompson equations of nonlinear acoustics with fractional operators","authors":"Rabah Djemiat, Bilal Basti, Noureddine Benhamidouche","doi":"10.47743/anstim.2023.00010","DOIUrl":"https://doi.org/10.47743/anstim.2023.00010","url":null,"abstract":"","PeriodicalId":55523,"journal":{"name":"Analele Stiintifice Ale Universitatii Al I Cuza Din Iasi - Matematica","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135101513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On equality of coset preserving subcentral automorphisms 关于保余集次中心自同构的等式
Analele Stiintifice Ale Universitatii Al I Cuza Din Iasi - Matematica Pub Date : 2023-01-01 DOI: 10.47743/anstim.2023.00002
Parisa Seifizadeh, AmirAli Farokhniaee
{"title":"On equality of coset preserving subcentral automorphisms","authors":"Parisa Seifizadeh, AmirAli Farokhniaee","doi":"10.47743/anstim.2023.00002","DOIUrl":"https://doi.org/10.47743/anstim.2023.00002","url":null,"abstract":"Let G be a finite non-abelian p -group, where p is a prime and M and N are two subcentral characteristic subgroups of G . An automorphism α of G is called subcentral automorphism if, for all g ∈ G , g − 1 α ( g ) ∈ M and for all n ∈ N , n − 1 α ( n ) = 1 . Let Aut MN ( G ) , C Aut MN ( G ) ( Z ( G )) and Aut G ′ N ( G ) denote, respectively, the group of all subcentral automorphisms of G , the group of all subcentral automorphisms of G fixing the center of G , elementwise, and the group of all derival automorphisms of G fixing the elements of N . In this study, we present necessary and sufficient conditions on a finite p -group, G , such that Aut MN ( G ) = C Aut MN ( G ) ( Z ( G )) and Aut MN ( G ) = Aut G ′ N ( G ) . Moreover, we investigate the necessary and sufficient conditions for the equality of inner automorphisms and the group of subcentral automorphisms that fix the center and the Frattini subgroup of, G , element wise.","PeriodicalId":55523,"journal":{"name":"Analele Stiintifice Ale Universitatii Al I Cuza Din Iasi - Matematica","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135101510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Well-posedness and asymptotic behavior of thermoelastic system with infinite memory 具有无限记忆的热弹性系统的适定性和渐近性
Analele Stiintifice Ale Universitatii Al I Cuza Din Iasi - Matematica Pub Date : 2023-01-01 DOI: 10.47743/anstim.2023.00014
Noureddine Taouaf, Billal Lekdim
{"title":"Well-posedness and asymptotic behavior of thermoelastic system with infinite memory","authors":"Noureddine Taouaf, Billal Lekdim","doi":"10.47743/anstim.2023.00014","DOIUrl":"https://doi.org/10.47743/anstim.2023.00014","url":null,"abstract":"In this work, we consider the thermoelastic system subject to infinite memory. For general assumptions about the memory kernel, we establish well-posedness using the semi group theory and decay result using Lyapunov method.","PeriodicalId":55523,"journal":{"name":"Analele Stiintifice Ale Universitatii Al I Cuza Din Iasi - Matematica","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135101490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unification of relative versions of some star-covering properties 一些恒星覆盖特性的相对版本的统一
Analele Stiintifice Ale Universitatii Al I Cuza Din Iasi - Matematica Pub Date : 2023-01-01 DOI: 10.47743/anstim.2023.00006
Ritu Sen
{"title":"Unification of relative versions of some star-covering properties","authors":"Ritu Sen","doi":"10.47743/anstim.2023.00006","DOIUrl":"https://doi.org/10.47743/anstim.2023.00006","url":null,"abstract":"In this paper, we introduce relative star-∆ -Menger property in topological spaces following the approach of Bonanzinga and Pansera (Acta Math. Hungar. 117 (3) 231– 243, 2007), which unifies the relative versions of star-K -Menger property, star-C - Menger property and star-L -Menger property in the same. We then study the properties of such spaces and also its relationships with different types of existing Menger properties present in the literature. Finally, we study the preservation properties of such spaces and discuss about the associated star-∆ -Menger game.","PeriodicalId":55523,"journal":{"name":"Analele Stiintifice Ale Universitatii Al I Cuza Din Iasi - Matematica","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135101492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multi-dimensional ρ-almost periodic type distributions 多维ρ-概周期型分布
Analele Stiintifice Ale Universitatii Al I Cuza Din Iasi - Matematica Pub Date : 2023-01-01 DOI: 10.47743/anstim.2023.00011
Marko Kosti´
{"title":"Multi-dimensional ρ-almost periodic type distributions","authors":"Marko Kosti´","doi":"10.47743/anstim.2023.00011","DOIUrl":"https://doi.org/10.47743/anstim.2023.00011","url":null,"abstract":"","PeriodicalId":55523,"journal":{"name":"Analele Stiintifice Ale Universitatii Al I Cuza Din Iasi - Matematica","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135101501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An analytic and numerical study for two classes of differential equations of fractional order involving Caputo and Khalil derivatives 涉及Caputo和Khalil导数的两类分数阶微分方程的解析和数值研究
Analele Stiintifice Ale Universitatii Al I Cuza Din Iasi - Matematica Pub Date : 2023-01-01 DOI: 10.47743/anstim.2023.00003
Mahdi Rakah, Ahmed Anber, Zoubir Dahmani, Iqbal Jebril
{"title":"An analytic and numerical study for two classes of differential equations of fractional order involving Caputo and Khalil derivatives","authors":"Mahdi Rakah, Ahmed Anber, Zoubir Dahmani, Iqbal Jebril","doi":"10.47743/anstim.2023.00003","DOIUrl":"https://doi.org/10.47743/anstim.2023.00003","url":null,"abstract":"In this paper, we study new classes of differential equations of fractional order. The first considered problem involves the derivative of Caputo, while the second one involves conformable Khalil derivative. For the first class, we prove an existence and uniqueness result, then, we discuss an example to show the applicability of the result. For the second one, we apply the exp-function method to find new traveling wave solutions for a generalised conformable fractional partial differential equation, then some examples on Ostrovsky and KdV equations are given to illustrate the efficiency and accuracy of the method. Some graphs are plotted and discussed to show more the importance of the obtained results.","PeriodicalId":55523,"journal":{"name":"Analele Stiintifice Ale Universitatii Al I Cuza Din Iasi - Matematica","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135101505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Commutativity of prime rings with symmetric generalized biderivations 具有对称广义双导的素环的交换性
Analele Stiintifice Ale Universitatii Al I Cuza Din Iasi - Matematica Pub Date : 2023-01-01 DOI: 10.47743/anstim.2023.00012
Muzibur Rahman Mozumder, Wasim Ahmed, Md. Arshad Madni
{"title":"Commutativity of prime rings with symmetric generalized biderivations","authors":"Muzibur Rahman Mozumder, Wasim Ahmed, Md. Arshad Madni","doi":"10.47743/anstim.2023.00012","DOIUrl":"https://doi.org/10.47743/anstim.2023.00012","url":null,"abstract":"In this manuscript we have generalized the result of B. R. Reddy and C. J. S. Reddy [8]. We have taken R to be a prime ring with nonzero ideal I of R and G be a symmetric generalized biderivation of R . We have investigated the commutativity of R if G satisfies any one of the given identities (i) G ([ l,m ] ,n ) ± [ l,m ] = 0, (ii) G ( l ◦ m,n ) ± l ◦ m = 0, (iii) G ( l,m ) ◦ G ( m,n ) = 0, (iv) [ G ( l,m ) , G ( m,n )] = 0, (v) G ( l,m ) ◦ G ( m,n ) ± l ◦ n = 0 and (vi) [ G ( l,m ) , G ( m,n )] ± [ l,n ] = 0 ∀ l,m,n ∈ I .","PeriodicalId":55523,"journal":{"name":"Analele Stiintifice Ale Universitatii Al I Cuza Din Iasi - Matematica","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135101509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Approximation by means of Fourier trigonometric series in Morrey spaces Morrey空间中傅里叶三角级数的逼近
Analele Stiintifice Ale Universitatii Al I Cuza Din Iasi - Matematica Pub Date : 2023-01-01 DOI: 10.47743/anstim.2023.00005
Sadulla Z. Jafarov
{"title":"Approximation by means of Fourier trigonometric series in Morrey spaces","authors":"Sadulla Z. Jafarov","doi":"10.47743/anstim.2023.00005","DOIUrl":"https://doi.org/10.47743/anstim.2023.00005","url":null,"abstract":"In the present work we investigate the approximation of the functions by Ce-saro, Zygmund and Abel-Poisson means of Fourier series in Morrey spaces L p,λ ( T ) , 0 < λ ≤ 2 ,1 < p < ∞ in the terms of the modulus of continuity. These results applied to the estimates of approximation of Cesaro, Zygmund and Abel sums of Faber series in the Morrey-Smirnov classes E p,λ ( G ) , 0 < λ ≤ 2 and 1 < p < ∞ defined in the domains with Dini-smooth boundary of the complex plane.","PeriodicalId":55523,"journal":{"name":"Analele Stiintifice Ale Universitatii Al I Cuza Din Iasi - Matematica","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135101488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A study on (m, n)-centralizer finite rings (m, n)-扶正器有限环的研究
Analele Stiintifice Ale Universitatii Al I Cuza Din Iasi - Matematica Pub Date : 2023-01-01 DOI: 10.47743/anstim.2023.00009
Tai Chong Chan, Kiat Tat Qua, Denis Chee, Keong Wong
{"title":"A study on (m, n)-centralizer finite rings","authors":"Tai Chong Chan, Kiat Tat Qua, Denis Chee, Keong Wong","doi":"10.47743/anstim.2023.00009","DOIUrl":"https://doi.org/10.47743/anstim.2023.00009","url":null,"abstract":"For any m distinct elements r 1 ,r 2 , ··· ,r m in a ring R , the m -element central-izer of { r 1 ,r 2 , ··· ,r m } in R is defined as C R ( { r 1 ,r 2 , ··· ,r m } ) = { s ∈ R | sr 1 = r 1 s,sr 2 = r 2 s,...,sr m = r m s } , where m ∈ N with m ⩾ 2. We define the set of all distinct m -element centralizers in a ring R by m − Cent( R ), where m ∈ N with m ⩾ 2. Further, R is called ( m,n )-centralizer ring if | m − Cent( R ) | = n , where n ∈ N . In this paper, we characterize some of the ( m,n )-centralizer finite rings for n ⩽ 7.","PeriodicalId":55523,"journal":{"name":"Analele Stiintifice Ale Universitatii Al I Cuza Din Iasi - Matematica","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135101518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The radial curvature of plane curves 平面曲线的径向曲率
Analele Stiintifice Ale Universitatii Al I Cuza Din Iasi - Matematica Pub Date : 2023-01-01 DOI: 10.47743/anstim.2023.00004
Mircea Crasmareanu
{"title":"The radial curvature of plane curves","authors":"Mircea Crasmareanu","doi":"10.47743/anstim.2023.00004","DOIUrl":"https://doi.org/10.47743/anstim.2023.00004","url":null,"abstract":"We introduce and study a new curvature function for plane curves inspired by the weighted mean curvature of M. Gromov. We call it radial being the difference between the usual curvature and the inner product of the normal vector field and the radial vector field. But, since the problem of vanishing of this curvature involves complicated expressions, we computed it for several examples.","PeriodicalId":55523,"journal":{"name":"Analele Stiintifice Ale Universitatii Al I Cuza Din Iasi - Matematica","volume":"7 7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135104478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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