发布求助
文献互助 智能选刊 最新文献

Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali最新文献

筛选
英文 中文
Regularity for nonlinear elliptic equations and systems 非线性椭圆型方程和系统的正则性
IF 0.4
Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali Pub Date : 2020-12-13 DOI: 10.1478/AAPP.98S2A10
Paolo Marcellini
{"title":"Regularity for nonlinear elliptic equations and systems","authors":"Paolo Marcellini","doi":"10.1478/AAPP.98S2A10","DOIUrl":"https://doi.org/10.1478/AAPP.98S2A10","url":null,"abstract":"We study the regularity of weak solutions to the elliptic system in divergence form divA( x , D u)=0 in an open set Ω of R n , n ≥2. The vector field A( x .ξ), A: Ω×R m×n →R m×n , has a variational nature in the sense that A( x ,ξ)= D ξ f ( x ,ξ), where f :Ω×R m×n →R is a convex Caratheodory integrand ; i.e., f = f ( x ,ξ) is measurable with respect to x ∈R n and it is a convex function with respect to ξ∈R m×n . If m =1 then the system reduces to a partial differential equation . In the context m >1 of general vector-valued maps and systems , a classical assumption finalized to the everywhere regularity of the weak solutions is a modulus-dependence in the energy integrand; i.e., we require that f ( x ,ξ)= g ( x ,|ξ|), where g :Ω×[0,∞)→[0,∞) is measurable with respect to x∈  R n and it is a convex and increasing function with respect to the gradient variable t∈[0,∞).","PeriodicalId":43431,"journal":{"name":"Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48161709","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: 1
L'Università italiana nella seconda metà del Novecento e l'inizio della carriera accademica del prof. Antonino Maugeri 二十世纪下半叶的意大利大学和Antonino Maugeri教授学术生涯的开端
IF 0.4
Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali Pub Date : 2020-12-13 DOI: 10.1478/AAPP.98S2E3
M. Marino
{"title":"L'Università italiana nella seconda metà del Novecento e l'inizio della carriera accademica del prof. Antonino Maugeri","authors":"M. Marino","doi":"10.1478/AAPP.98S2E3","DOIUrl":"https://doi.org/10.1478/AAPP.98S2E3","url":null,"abstract":"Speech held on 19 September 2019 during the Opening Ceremony of the Workshop on Variational Analysis, PDEs, and Mathematical Economics, on the occasion of Antonino Maugeri's 75th birthday.","PeriodicalId":43431,"journal":{"name":"Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49603798","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
Sequences of weak solutions to a fourth-order elliptic problem 一个四阶椭圆型问题的弱解序列
IF 0.4
Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali Pub Date : 2020-12-13 DOI: 10.1478/AAPP.98S2A3
F. Cammaroto
{"title":"Sequences of weak solutions to a fourth-order elliptic problem","authors":"F. Cammaroto","doi":"10.1478/AAPP.98S2A3","DOIUrl":"https://doi.org/10.1478/AAPP.98S2A3","url":null,"abstract":"This paper contains some results of existence of infinitely many solutions to an elliptic equation involving the p(x) - biharmonic operator coupled with Navier boundary conditions where the nonlinearities depend on two real parameters and do not possess any symmetric property. The approach is variational and the main tool is an abstract result of Ricceri.","PeriodicalId":43431,"journal":{"name":"Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43329693","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 existence theorem for generalized quasi-variational inequalities involving the Grassmannian manifold with an application 涉及格拉斯曼流形的广义拟变分不等式的存在性定理及其应用
IF 0.4
Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali Pub Date : 2020-12-13 DOI: 10.1478/AAPP.98S2A6
M. B. Donato, Antonio Villanacci
{"title":"An existence theorem for generalized quasi-variational inequalities involving the Grassmannian manifold with an application","authors":"M. B. Donato, Antonio Villanacci","doi":"10.1478/AAPP.98S2A6","DOIUrl":"https://doi.org/10.1478/AAPP.98S2A6","url":null,"abstract":"We present an existence theorem for a class of generalized quasi-variational problem involving Grassmannian manifolds. This class is directly inspired by a general equilibrium problem with time, uncertainty and incomplete financial market with real assets. The problem of the existence of this equilibrium cannot be analyzed using standard techniques employed in similar models. Then, we show how the concept of equilibrium is strictly related to the concept of Grassmannian manifolds. Finally, we present a variational inequality problem, whose solutions are equilibria of the proposed model.","PeriodicalId":43431,"journal":{"name":"Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43615020","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: 1
Duality and o − O-structure in non reflexive Banach spaces 非自反Banach空间中的对偶性和o−o结构
IF 0.4
Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali Pub Date : 2020-12-13 DOI: 10.1478/AAPP.98S2A7
Luigi d’Onofrio, C. Sbordone, Roberta Schiattarella
{"title":"Duality and o − O-structure in non reflexive Banach spaces","authors":"Luigi d’Onofrio, C. Sbordone, Roberta Schiattarella","doi":"10.1478/AAPP.98S2A7","DOIUrl":"https://doi.org/10.1478/AAPP.98S2A7","url":null,"abstract":"Let E be a Banach space with a supremum type norm induced by a collection of functionals  ℒ ⊂ X * where X is a reflexive Banach space. Familiar spaces of this type are BMO , BV , C 0,α (0 1. For most of these spaces E , the predual E *  exists and can be defined by atomic decomposition of its elements. Another typical result, when it is possible to define a rich vanishing subspace E 0 ⊂ E is the \"two star theorem\", namely ( E 0 )*= E * . This fails for E = BV and E = C 0,1 = Lip .","PeriodicalId":43431,"journal":{"name":"Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43249306","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
Preamble to the analysis of thermodynamic processes in sparse phases 稀疏相中热力学过程分析序言
IF 0.4
Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali Pub Date : 2020-12-02 DOI: 10.1478/AAPP.982A5
G. Capriz, P. M. Mariano
{"title":"Preamble to the analysis of thermodynamic processes in sparse phases","authors":"G. Capriz, P. M. Mariano","doi":"10.1478/AAPP.982A5","DOIUrl":"https://doi.org/10.1478/AAPP.982A5","url":null,"abstract":"We propose an interpretation of heat in a multi-scale continuum representation of sparse media dynamics. We attribute the emergence of heat processes to residual fluctuations beyond average and meso-scale affine dynamics.","PeriodicalId":43431,"journal":{"name":"Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49383260","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
Properties of γH-compact spaces with hereditary classes 具有遗传类的γH-紧空间的性质
IF 0.4
Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali Pub Date : 2020-11-28 DOI: 10.1478/AAPP.982A4
A. Al-Omari, T. Noiri
{"title":"Properties of γH-compact spaces with hereditary classes","authors":"A. Al-Omari, T. Noiri","doi":"10.1478/AAPP.982A4","DOIUrl":"https://doi.org/10.1478/AAPP.982A4","url":null,"abstract":"By using γ-operations on an m -structure and a hereditary class H, we define the notion of γ-compactness modulo hereditary classes (or ideals) called γH-compact. We obtain several properties of γH-compact spaces and γH-compact sets relative to m -structures.","PeriodicalId":43431,"journal":{"name":"Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46166341","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: 4
Mechanical relaxation in amorphous selenium 无定形硒的机械弛豫
IF 0.4
Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali Pub Date : 2020-10-01 DOI: 10.1478/AAPP.98S1A4
U. Buchenau, G. D’Angelo, G. Carini, Xiao Liu
{"title":"Mechanical relaxation in amorphous selenium","authors":"U. Buchenau, G. D’Angelo, G. Carini, Xiao Liu","doi":"10.1478/AAPP.98S1A4","DOIUrl":"https://doi.org/10.1478/AAPP.98S1A4","url":null,"abstract":"Literature mechanical relaxation data of amorphous selenium are interpreted in terms of the soft potential model and its extension to higher temperatures, the Gilroy-Phillips model. At the crossover temperature from tunneling states to thermally activated relaxation, one finds a stronger decrease of the barrier density f(V) with increasing barrier height V than in silica. On the high barrier side, f(V) is determined by the Kohlrausch  t β -tail of the viscous flow, with β = 0.31. In longitudinal ultrasound absorption data, one finds weak oscillations of the Kohlrausch barrier density, similar to those found recently in metallic glasses, consistent with an increase of the barrier by V 1 = S 1 T g /β for the addition of one selenium atom to the rearranging domain, where S 1 is the structural entropy per atom at the glass temperature T g .","PeriodicalId":43431,"journal":{"name":"Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44887883","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
Coherent collective dynamics in phospholipid membranes: where are we now? 磷脂膜中的相干集体动力学：我们现在在哪里？
IF 0.4
Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali Pub Date : 2020-10-01 DOI: 10.1478/AAPP.98S1A10
V. Nibali, C. Branca, A. Paciaroni, U. Wanderlingh, G. D’Angelo
{"title":"Coherent collective dynamics in phospholipid membranes: where are we now?","authors":"V. Nibali, C. Branca, A. Paciaroni, U. Wanderlingh, G. D’Angelo","doi":"10.1478/AAPP.98S1A10","DOIUrl":"https://doi.org/10.1478/AAPP.98S1A10","url":null,"abstract":"We review the main achievements accomplished in the study of the coherent collective dynamics of phospholipid membranes, i.e. , the collective vibrational excitations active on the sub-picoseconds to picoseconds time scale and terahertz frequencies, over a length scale comparable to the angstrom length scale. The first descriptions of the terahertz collective spectrum, mainly assigned to a single longitudinal acoustic-like mode similarly to simple liquids, have been progressively replaced by a complex scenario, with longitudinal and transverse acoustic-like and optic-like inelastic excitations. Complex phenomena (avoided crossing mechanisms between modes, a phonon gap introduced by the disorder and a slow- to fast-sound transition) have been highlighted in the dispersion curves of lipid bilayers. Systematic and comprehensive studies along the lines of the investigations reviewed here contribute to understand the role of the collective (coherent) chain dynamics in the passive transport across bilayers, in the formation of water wires inside dynamic defects in lipid bilayers and in other biological functions of biomembranes.","PeriodicalId":43431,"journal":{"name":"Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47484902","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
Effects of topological disorder on thermodynamic and vibrational properties of amorphous solids 拓扑无序对非晶固体热力学和振动性能的影响
IF 0.4
Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali Pub Date : 2020-10-01 DOI: 10.1478/AAPP.98S1A1
G. D’Angelo, G. Carini
{"title":"Effects of topological disorder on thermodynamic and vibrational properties of amorphous solids","authors":"G. D’Angelo, G. Carini","doi":"10.1478/AAPP.98S1A1","DOIUrl":"https://doi.org/10.1478/AAPP.98S1A1","url":null,"abstract":"The disordered topology introduces additional degrees of freedom in the structure of amorphous solids mainly enhancing the local atomic mobility. This gives rise to substantial and amazing changes of the physical properties of these systems compared to the corresponding crystals, i.e. solids having the same stoichiometry, but over an ordered structure. In this article, the possible connection between the thermodynamic and vibrational aspects of glasses and the topological disorder is considered, emphasizing the most significant differences between crystalline and amorphous solids having the same stoichiometry.","PeriodicalId":43431,"journal":{"name":"Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49263905","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: 1
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信