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Local and global existence and uniqueness of solution for abstract differential equations with state-dependent argument 具有状态相关自变量的抽象微分方程解的局部和全局存在唯一性
IF 0.7 3区 数学
Proceedings of the Edinburgh Mathematical Society Pub Date : 2023-04-26 DOI: 10.1017/S0013091523000160
E. Hernández, Denis Fernandes, A. Zada
{"title":"Local and global existence and uniqueness of solution for abstract differential equations with state-dependent argument","authors":"E. Hernández, Denis Fernandes, A. Zada","doi":"10.1017/S0013091523000160","DOIUrl":"https://doi.org/10.1017/S0013091523000160","url":null,"abstract":"Abstract We study the local and global existence and uniqueness of mild solution for a general class of abstract differential equations with state-dependent argument. In the last section, some examples on partial differential equations with state-dependent argument are presented.","PeriodicalId":20586,"journal":{"name":"Proceedings of the Edinburgh Mathematical Society","volume":"66 1","pages":"305 - 345"},"PeriodicalIF":0.7,"publicationDate":"2023-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42261553","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: 1
On the existence of baby skyrmions stabilized by vector mesons 关于由矢量介子稳定的婴儿skyrmions的存在性
IF 0.7 3区 数学
Proceedings of the Edinburgh Mathematical Society Pub Date : 2023-02-01 DOI: 10.1017/S0013091523000056
C. Greco
{"title":"On the existence of baby skyrmions stabilized by vector mesons","authors":"C. Greco","doi":"10.1017/S0013091523000056","DOIUrl":"https://doi.org/10.1017/S0013091523000056","url":null,"abstract":"Abstract In this paper, we prove the existence of topologically non-trivial solutions of the two-dimensional Adkins–Nappi model of nuclear physics; to this end, we minimize the energy functional by using the classical Skyrme ansatz, as well as a non-radially symmetric generalization of it. In both cases, we show that the minimization procedure preserves the topological degree of the minimization sequence.","PeriodicalId":20586,"journal":{"name":"Proceedings of the Edinburgh Mathematical Society","volume":"66 1","pages":"100 - 116"},"PeriodicalIF":0.7,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48047354","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
Rigidity of capillary surfaces in compact 3-manifolds with strictly convex boundary 具有严格凸边界的紧致3流形毛细管表面的刚性
IF 0.7 3区 数学
Proceedings of the Edinburgh Mathematical Society Pub Date : 2023-02-01 DOI: 10.1017/S0013091523000135
P. Sousa, R. Batista, B. P. Lima, Bruno Vasconcelos Mendes Vieira
{"title":"Rigidity of capillary surfaces in compact 3-manifolds with strictly convex boundary","authors":"P. Sousa, R. Batista, B. P. Lima, Bruno Vasconcelos Mendes Vieira","doi":"10.1017/S0013091523000135","DOIUrl":"https://doi.org/10.1017/S0013091523000135","url":null,"abstract":"Abstract In this paper, we obtain one sharp estimate for the length $L(partialSigma)$ of the boundary $partialSigma$ of a capillary minimal surface Σ2 in M3, where M is a compact three-manifolds with strictly convex boundary, assuming Σ has index one. The estimate is in term of the genus of Σ, the number of connected components of $partialSigma$ and the constant contact angle θ. Making an extra assumption on the geometry of M along $partial M$, we characterize the global geometry of M, which is saturated only by the Euclidean three-balls. For capillary stable CMC surfaces, we also obtain similar results.","PeriodicalId":20586,"journal":{"name":"Proceedings of the Edinburgh Mathematical Society","volume":"66 1","pages":"231 - 240"},"PeriodicalIF":0.7,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44146738","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
Polynomial stability of a piezoelectric beam with magnetic effect and a boundary dissipation of the fractional derivative type 具有分数阶导数型边界耗散的磁效应压电梁的多项式稳定性
IF 0.7 3区 数学
Proceedings of the Edinburgh Mathematical Society Pub Date : 2023-02-01 DOI: 10.1017/S0013091523000111
Verónica Poblete, F. Toledo, O. Vera
{"title":"Polynomial stability of a piezoelectric beam with magnetic effect and a boundary dissipation of the fractional derivative type","authors":"Verónica Poblete, F. Toledo, O. Vera","doi":"10.1017/S0013091523000111","DOIUrl":"https://doi.org/10.1017/S0013091523000111","url":null,"abstract":"Abstract This work studies the asymptotic behavior of a waves coupled system with a boundary dissipation of the fractional derivative type. We prove well-posedness and polynomial stability based on the semigroup approach, the energy method, and the result of stability.","PeriodicalId":20586,"journal":{"name":"Proceedings of the Edinburgh Mathematical Society","volume":"66 1","pages":"23 - 53"},"PeriodicalIF":0.7,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44613386","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: 1
Iterative roots of two-dimensional mappings 二维映射的迭代根
IF 0.7 3区 数学
Proceedings of the Edinburgh Mathematical Society Pub Date : 2023-02-01 DOI: 10.1017/S0013091523000147
Zhiheng Yu, Lin Li, J. Matkowski
{"title":"Iterative roots of two-dimensional mappings","authors":"Zhiheng Yu, Lin Li, J. Matkowski","doi":"10.1017/S0013091523000147","DOIUrl":"https://doi.org/10.1017/S0013091523000147","url":null,"abstract":"Abstract As a weak version of embedding flow, the problem of iterative roots is studied extensively in one dimension, especially in monotone case. There are few results in high dimensions because the constructive method dealing with monotone mappings is unavailable. In this paper, by introducing a kind of partial order, we define the monotonicity for two-dimensional mappings and then present some results on the existence of iterative roots for linear mappings, triangle-type mappings, and co-triangle-type mappings, respectively. Our theorems show that even the property of monotonicity for iterative roots of monotone mappings, which is a trivial result in one dimension, does not hold anymore in high dimensions. At the end of this paper, the problem of iterative roots for two well-known planar mappings, that is, Hénon mappings and coupled logistic mappings, are also discussed.","PeriodicalId":20586,"journal":{"name":"Proceedings of the Edinburgh Mathematical Society","volume":"66 1","pages":"241 - 258"},"PeriodicalIF":0.7,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46279200","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: 1
On ρ-conjugate Hopf–Galois structures 关于ρ-共轭Hopf–Galois结构
IF 0.7 3区 数学
Proceedings of the Edinburgh Mathematical Society Pub Date : 2023-02-01 DOI: 10.1017/S0013091523000184
Paul J. Truman
{"title":"On ρ-conjugate Hopf–Galois structures","authors":"Paul J. Truman","doi":"10.1017/S0013091523000184","DOIUrl":"https://doi.org/10.1017/S0013091523000184","url":null,"abstract":"Abstract The Hopf–Galois structures admitted by a Galois extension of fields $ L/K $ with Galois group G correspond bijectively with certain subgroups of $ mathrm{Perm}(G) $. We use a natural partition of the set of such subgroups to obtain a method for partitioning the set of corresponding Hopf–Galois structures, which we term ρ-conjugation. We study properties of this construction, with particular emphasis on the Hopf–Galois analogue of the Galois correspondence, the connection with skew left braces, and applications to questions of integral module structure in extensions of local or global fields. In particular, we show that the number of distinct ρ-conjugates of a given Hopf–Galois structure is determined by the corresponding skew left brace, and that if $ H, H^{prime} $ are Hopf algebras giving ρ-conjugate Hopf–Galois structures on a Galois extension of local or global fields $ L/K $ then an ambiguous ideal $ mathfrak{B} $ of L is free over its associated order in H if and only if it is free over its associated order in Hʹ. We exhibit a variety of examples arising from interactions with existing constructions in the literature.","PeriodicalId":20586,"journal":{"name":"Proceedings of the Edinburgh Mathematical Society","volume":"66 1","pages":"288 - 304"},"PeriodicalIF":0.7,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47576791","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
PEM series 2 volume 66 issue 1 Cover and Front matter PEM系列2卷66期1封面和封面问题
IF 0.7 3区 数学
Proceedings of the Edinburgh Mathematical Society Pub Date : 2023-02-01 DOI: 10.1017/s001309152300024x
{"title":"PEM series 2 volume 66 issue 1 Cover and Front matter","authors":"","doi":"10.1017/s001309152300024x","DOIUrl":"https://doi.org/10.1017/s001309152300024x","url":null,"abstract":"","PeriodicalId":20586,"journal":{"name":"Proceedings of the Edinburgh Mathematical Society","volume":" ","pages":"f1 - f2"},"PeriodicalIF":0.7,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48284783","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
Perfection for semigroups 半群的完美性
IF 0.7 3区 数学
Proceedings of the Edinburgh Mathematical Society Pub Date : 2023-02-01 DOI: 10.1017/S0013091523000159
V. Laan, Alvin Lepik
{"title":"Perfection for semigroups","authors":"V. Laan, Alvin Lepik","doi":"10.1017/S0013091523000159","DOIUrl":"https://doi.org/10.1017/S0013091523000159","url":null,"abstract":"Abstract We call a semigroup right perfect if every object in the category of unitary right acts over that semigroup has a projective cover. In this paper, we generalize results about right perfect monoids to the case of semigroups. In our main theorem, we will give nine conditions equivalent to right perfectness of a factorizable semigroup. We also prove that right perfectness is a Morita invariant for factorizable semigroups.","PeriodicalId":20586,"journal":{"name":"Proceedings of the Edinburgh Mathematical Society","volume":"66 1","pages":"259 - 287"},"PeriodicalIF":0.7,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47027923","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
PEM series 2 volume 66 issue 1 Cover and Back matter PEM系列2卷66期1封面和封底
IF 0.7 3区 数学
Proceedings of the Edinburgh Mathematical Society Pub Date : 2023-02-01 DOI: 10.1017/s0013091523000238
{"title":"PEM series 2 volume 66 issue 1 Cover and Back matter","authors":"","doi":"10.1017/s0013091523000238","DOIUrl":"https://doi.org/10.1017/s0013091523000238","url":null,"abstract":"","PeriodicalId":20586,"journal":{"name":"Proceedings of the Edinburgh Mathematical Society","volume":" ","pages":"b1 - b2"},"PeriodicalIF":0.7,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44343511","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
The boundedness of the bilinear oscillatory integral along a parabola 双线性振荡积分沿抛物线的有界性
IF 0.7 3区 数学
Proceedings of the Edinburgh Mathematical Society Pub Date : 2023-02-01 DOI: 10.1017/S0013091523000032
Guoliang Li, Junfeng Li
{"title":"The boundedness of the bilinear oscillatory integral along a parabola","authors":"Guoliang Li, Junfeng Li","doi":"10.1017/S0013091523000032","DOIUrl":"https://doi.org/10.1017/S0013091523000032","url":null,"abstract":"Abstract In this paper, the $L^p(mathbb{R})times L^q(mathbb{R})rightarrow L^r(mathbb{R})$ boundedness of the bilinear oscillatory integral along parabola begin{equation*}\u0000T_beta(f, g)(x)=p.v.int_{{mathbb R}} f(x-t)g(x-t^{2}),{rm e}^{i |t|^{beta}},frac{{rm d}t}{t}\u0000end{equation*}is set up, where β > 1 or β < 0, $frac{1}{p}+frac{1}{q}=frac{1}{r}$ and $frac{1}{2}lt rltinfty$, p > 1 and q > 1. The result for the case β < 0 extends the $L^inftytimes L^2to L^2$ boundedness obtained by Fan and Li (D. Fan and X. Li, A bilinear oscillatory integral along parabolas, Positivity 13(2) (2009), 339–366) by confirming an open question raised in it.","PeriodicalId":20586,"journal":{"name":"Proceedings of the Edinburgh Mathematical Society","volume":"66 1","pages":"54 - 88"},"PeriodicalIF":0.7,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43280510","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
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