Electronic Journal of Qualitative Theory of Differential Equations最新文献

筛选
英文 中文
Further study on second order nonlocal problems monitored by an operator 算子监测的二阶非局部问题的进一步研究
IF 1.1 4区 数学
Electronic Journal of Qualitative Theory of Differential Equations Pub Date : 2023-01-01 DOI: 10.14232/ejqtde.2023.1.13
T. Cardinali, Giulia Duricchi
{"title":"Further study on second order nonlocal problems monitored by an operator","authors":"T. Cardinali, Giulia Duricchi","doi":"10.14232/ejqtde.2023.1.13","DOIUrl":"https://doi.org/10.14232/ejqtde.2023.1.13","url":null,"abstract":"In this note we prove the existence of mild solutions for nonlocal problems governed by semilinear second order differential inclusions which involves a nonlinear term driven by an operator. A first result is obtained in suitable Banach spaces in the lack of compactness both on the fundamental operator, generated by the linear part, and on the nonlinear multivalued term. This purpose is achieved by combining a fixed point theorem, a selection theorem and a containment theorem. Further we provide another existence result in reflexive spaces by using the classical Hahn–Banach theorem and a new selection proposition, proved here, for a multimap guided by an operator. This setting allows us to remove some assumptions required in the previous existence theorem. As a consequence of this last result we obtain the controllability of a problem driven by a wave equation on which an appropriate perturbation acts.","PeriodicalId":50537,"journal":{"name":"Electronic Journal of Qualitative Theory of Differential Equations","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66585115","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}
引用次数: 1
On a Dirichlet boundary value problem for an Ermakov–Painlevé I equation. A Hamiltonian EPI system ermakov - painlevevl方程的Dirichlet边值问题。哈密顿EPI系统
IF 1.1 4区 数学
Electronic Journal of Qualitative Theory of Differential Equations Pub Date : 2023-01-01 DOI: 10.14232/ejqtde.2023.1.23
P. Amster, C. Rogers
{"title":"On a Dirichlet boundary value problem for an Ermakov–Painlevé I equation. A Hamiltonian EPI system","authors":"P. Amster, C. Rogers","doi":"10.14232/ejqtde.2023.1.23","DOIUrl":"https://doi.org/10.14232/ejqtde.2023.1.23","url":null,"abstract":"Here, a proto-type Ermakov–Painlevé I equation is introduced and a homogeneous Dirichlet-type boundary value problem analysed. In addition, a novel Ermakov–Painlevé I system is set down which is reducible by an involutory transformation to the autonomous Ermakov–Ray–Reid system augmented by a single component Ermakov–Painlevé I equation. Hamiltonian such systems are delimited","PeriodicalId":50537,"journal":{"name":"Electronic Journal of Qualitative Theory of Differential Equations","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66585691","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}
引用次数: 0
The Dirichlet problem in an unbounded cone-like domain for second order elliptic quasilinear equations with variable nonlinearity exponent 二阶变非线性指数椭圆型拟线性方程在无界锥型区域上的Dirichlet问题
IF 1.1 4区 数学
Electronic Journal of Qualitative Theory of Differential Equations Pub Date : 2023-01-01 DOI: 10.14232/ejqtde.2023.1.33
M. Borsuk, Damian Wiśniewski
{"title":"The Dirichlet problem in an unbounded cone-like domain for second order elliptic quasilinear equations with variable nonlinearity exponent","authors":"M. Borsuk, Damian Wiśniewski","doi":"10.14232/ejqtde.2023.1.33","DOIUrl":"https://doi.org/10.14232/ejqtde.2023.1.33","url":null,"abstract":"In this paper we consider the Dirichlet problem for quasi-linear second-order elliptic equation with the m ( x ) -Laplacian and the strong nonlinearity on the right side in an unbounded cone-like domain. We study the behavior of weak solutions to the problem at infinity and we find the sharp exponent of the solution decreasing rate. We show that the exponent is related to the least eigenvalue of the eigenvalue problem for the Laplace–Beltrami operator on the unit sphere.","PeriodicalId":50537,"journal":{"name":"Electronic Journal of Qualitative Theory of Differential Equations","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66586382","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}
引用次数: 0
Normalized solutions to the Schrödinger systems with double critical growth and weakly attractive potentials 具有双临界生长和弱吸引势的Schrödinger系统的归一化解
IF 1.1 4区 数学
Electronic Journal of Qualitative Theory of Differential Equations Pub Date : 2023-01-01 DOI: 10.14232/ejqtde.2023.1.42
Lei Long, Xiaojing Feng
{"title":"Normalized solutions to the Schrödinger systems with double critical growth and weakly attractive potentials","authors":"Lei Long, Xiaojing Feng","doi":"10.14232/ejqtde.2023.1.42","DOIUrl":"https://doi.org/10.14232/ejqtde.2023.1.42","url":null,"abstract":"<jats:p>In this paper, we look for solutions to the following critical Schrödinger system <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"block\"> <mml:mrow> <mml:mo>{</mml:mo> <mml:mtable columnalign=\"left left\" rowspacing=\".2em\" columnspacing=\"1em\" displaystyle=\"false\"> <mml:mtr> <mml:mtd> <mml:mo>−<!-- − --></mml:mo> <mml:mi mathvariant=\"normal\">Δ<!-- Δ --></mml:mi> <mml:mi>u</mml:mi> <mml:mo>+</mml:mo> <mml:mo stretchy=\"false\">(</mml:mo> <mml:msub> <mml:mi>V</mml:mi> <mml:mn>1</mml:mn> </mml:msub> <mml:mo>+</mml:mo> <mml:msub> <mml:mi>λ<!-- λ --></mml:mi> <mml:mn>1</mml:mn> </mml:msub> <mml:mo stretchy=\"false\">)</mml:mo> <mml:mi>u</mml:mi> <mml:mo>=</mml:mo> <mml:mrow class=\"MJX-TeXAtom-ORD\"> <mml:mo stretchy=\"false\">|</mml:mo> </mml:mrow> <mml:mi>u</mml:mi> <mml:msup> <mml:mrow class=\"MJX-TeXAtom-ORD\"> <mml:mo stretchy=\"false\">|</mml:mo> </mml:mrow> <mml:mrow class=\"MJX-TeXAtom-ORD\"> <mml:msup> <mml:mn>2</mml:mn> <mml:mo>∗<!-- ∗ --></mml:mo> </mml:msup> <mml:mo>−<!-- − --></mml:mo> <mml:mn>2</mml:mn> </mml:mrow> </mml:msup> <mml:mi>u</mml:mi> <mml:mo>+</mml:mo> <mml:mrow class=\"MJX-TeXAtom-ORD\"> <mml:mo stretchy=\"false\">|</mml:mo> </mml:mrow> <mml:mi>u</mml:mi> <mml:msup> <mml:mrow class=\"MJX-TeXAtom-ORD\"> <mml:mo stretchy=\"false\">|</mml:mo> </mml:mrow> <mml:mrow class=\"MJX-TeXAtom-ORD\"> <mml:msub> <mml:mi>p</mml:mi> <mml:mn>1</mml:mn> </mml:msub> <mml:mo>−<!-- − --></mml:mo> <mml:mn>2</mml:mn> </mml:mrow> </mml:msup> <mml:mi>u</mml:mi> <mml:mo>+</mml:mo> <mml:mi>β<!-- β --></mml:mi> <mml:msub> <mml:mi>r</mml:mi> <mml:mn>1</mml:mn> </mml:msub> <mml:mrow class=\"MJX-TeXAtom-ORD\"> <mml:mo stretchy=\"false\">|</mml:mo> </mml:mrow> <mml:mi>u</mml:mi> <mml:msup> <mml:mrow class=\"MJX-TeXAtom-ORD\"> <mml:mo stretchy=\"false\">|</mml:mo> </mml:mrow> <mml:mrow class=\"MJX-TeXAtom-ORD\"> <mml:msub> <mml:mi>r</mml:mi> <mml:mn>1</mml:mn> </mml:msub> <mml:mo>−<!-- − --></mml:mo> <mml:mn>2</mml:mn> </mml:mrow> </mml:msup> <mml:mi>u</mml:mi> <mml:mrow class=\"MJX-TeXAtom-O","PeriodicalId":50537,"journal":{"name":"Electronic Journal of Qualitative Theory of Differential Equations","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66586964","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}
引用次数: 0
Mild solutions, variation of constants formula, and linearized stability for delay differential equations 时滞微分方程的温和解、常数公式的变分和线性化稳定性
IF 1.1 4区 数学
Electronic Journal of Qualitative Theory of Differential Equations Pub Date : 2022-07-04 DOI: 10.14232/ejqtde.2023.1.32
J. Nishiguchi
{"title":"Mild solutions, variation of constants formula, and linearized stability for delay differential equations","authors":"J. Nishiguchi","doi":"10.14232/ejqtde.2023.1.32","DOIUrl":"https://doi.org/10.14232/ejqtde.2023.1.32","url":null,"abstract":"The method and the formula of variation of constants for ordinary differential equations (ODEs) is a fundamental tool to analyze the dynamics of an ODE near an equilibrium. It is natural to expect that such a formula works for delay differential equations (DDEs), however, it is well-known that there is a conceptual difficulty in the formula for DDEs. Here we discuss the variation of constants formula for DDEs by introducing the notion of a mild solution, which is a solution under an initial condition having a discontinuous history function. Then the principal fundamental matrix solution is defined as a matrix-valued mild solution, and we obtain the variation of constants formula with this function. This is also obtained in the framework of a Volterra convolution integral equation, but the treatment here gives an understanding in its own right. We also apply the formula to show the principle of linearized stability and the Poincaré–Lyapunov theorem for DDEs, where we do not need to assume the uniqueness of a solution.","PeriodicalId":50537,"journal":{"name":"Electronic Journal of Qualitative Theory of Differential Equations","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45437429","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}
引用次数: 0
On the solution manifold of a differential equation with a delay which has a zero 时滞为零的微分方程的解流形
IF 1.1 4区 数学
Electronic Journal of Qualitative Theory of Differential Equations Pub Date : 2022-05-02 DOI: 10.14232/ejqtde.2022.1.31
H. Walther
{"title":"On the solution manifold of a differential equation with a delay which has a zero","authors":"H. Walther","doi":"10.14232/ejqtde.2022.1.31","DOIUrl":"https://doi.org/10.14232/ejqtde.2022.1.31","url":null,"abstract":"For a differential equation with a state-dependent delay we show that the associated solution manifold \u0000 \u0000 X\u0000 f\u0000 \u0000 of codimension 1 in the space \u0000 \u0000 C\u0000 1\u0000 \u0000 (\u0000 [\u0000 −\u0000 r\u0000 ,\u0000 0\u0000 ]\u0000 ,\u0000 \u0000 R\u0000 \u0000 )\u0000 is an almost graph over a hyperplane, which implies that \u0000 \u0000 X\u0000 f\u0000 \u0000 is diffeomorphic to the hyperplane. For the case considered previous results only provide a covering by 2 almost graphs.","PeriodicalId":50537,"journal":{"name":"Electronic Journal of Qualitative Theory of Differential Equations","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2022-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42357355","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}
引用次数: 1
Carleman inequality for a class of super strong degenerate parabolic operators and applications 一类超强退化抛物算子的Carleman不等式及其应用
IF 1.1 4区 数学
Electronic Journal of Qualitative Theory of Differential Equations Pub Date : 2022-04-20 DOI: 10.14232/ejqtde.2023.1.9
Equations Bruno S. V. Ara'ujo, R. Demarque, L. Viana
{"title":"Carleman inequality for a class of super strong degenerate parabolic\u0000 operators and applications","authors":"\t\tEquations\t\t\tBruno S. V. Ara'ujo, R. Demarque, L. Viana","doi":"10.14232/ejqtde.2023.1.9","DOIUrl":"https://doi.org/10.14232/ejqtde.2023.1.9","url":null,"abstract":"In this paper, we present a new Carleman estimate for the adjoint\u0000 equations associated to a class of super strong degenerate parabolic linear\u0000 problems. Our approach considers a standard geometric imposition on the\u0000 control domain, which can not be removed in general. Additionally, we also\u0000 apply the aforementioned main inequality in order to investigate the null\u0000 controllability of two nonlinear parabolic systems. The first application\u0000 is concerned a global null controllability result obtained for some\u0000 semilinear equations, relying on a fixed point argument. In the second one,\u0000 a local null controllability for some equations with nonlocal terms is also\u0000 achieved, by using an inverse function theorem.","PeriodicalId":50537,"journal":{"name":"Electronic Journal of Qualitative Theory of Differential Equations","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2022-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74888891","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}
引用次数: 0
On the cyclicity of Kolmogorov polycycles 关于Kolmogorov多环的循环性
IF 1.1 4区 数学
Electronic Journal of Qualitative Theory of Differential Equations Pub Date : 2022-03-24 DOI: 10.14232/ejqtde.2022.1.35
D. Mar'in, J. Villadelprat
{"title":"On the cyclicity of Kolmogorov polycycles","authors":"D. Mar'in, J. Villadelprat","doi":"10.14232/ejqtde.2022.1.35","DOIUrl":"https://doi.org/10.14232/ejqtde.2022.1.35","url":null,"abstract":"<jats:p>In this paper we study planar polynomial Kolmogorov's differential systems \u0000<mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"block\">\u0000 <mml:msub>\u0000 <mml:mi>X</mml:mi>\u0000 <mml:mi>μ<!-- μ --></mml:mi>\u0000 </mml:msub>\u0000 <mml:mspace width=\"1em\" />\u0000 <mml:mrow>\u0000 <mml:mo>{</mml:mo>\u0000 <mml:mtable columnalign=\"left left\" rowspacing=\".2em\" columnspacing=\"1em\" displaystyle=\"false\">\u0000 <mml:mtr>\u0000 <mml:mtd>\u0000 <mml:mrow class=\"MJX-TeXAtom-ORD\">\u0000 <mml:mrow class=\"MJX-TeXAtom-ORD\">\u0000 <mml:mover>\u0000 <mml:mi>x</mml:mi>\u0000 <mml:mo>˙<!-- ˙ --></mml:mo>\u0000 </mml:mover>\u0000 </mml:mrow>\u0000 <mml:mo>=</mml:mo>\u0000 <mml:mi>f</mml:mi>\u0000 <mml:mo stretchy=\"false\">(</mml:mo>\u0000 <mml:mi>x</mml:mi>\u0000 <mml:mo>,</mml:mo>\u0000 <mml:mi>y</mml:mi>\u0000 <mml:mo>;</mml:mo>\u0000 <mml:mi>μ<!-- μ --></mml:mi>\u0000 <mml:mo stretchy=\"false\">)</mml:mo>\u0000 <mml:mo>,</mml:mo>\u0000 </mml:mrow>\u0000 </mml:mtd>\u0000 </mml:mtr>\u0000 <mml:mtr>\u0000 <mml:mtd>\u0000 <mml:mrow class=\"MJX-TeXAtom-ORD\">\u0000 <mml:mrow class=\"MJX-TeXAtom-ORD\">\u0000 <mml:mover>\u0000 <mml:mi>y</mml:mi>\u0000 <mml:mo>˙<!-- ˙ --></mml:mo>\u0000 </mml:mover>\u0000 </mml:mrow>\u0000 <mml:mo>=</mml:mo>\u0000 <mml:mi>g</mml:mi>\u0000 <mml:mo stretchy=\"false\">(</mml:mo>\u0000 <mml:mi>x</mml:mi>\u0000 <mml:mo>,</mml:mo>\u0000 <mml:mi>y</mml:mi>\u0000 <mml:mo>;</mml:mo>\u0000 <mml:mi>μ<!-- μ --></mml:mi>\u0000 <mml:mo stretchy=\"false\">)</mml:mo>\u0000 <mml:mo>,</mml:mo>\u0000 </mml:mrow>\u0000 </mml:mtd>\u0000 </mml:mtr>\u0000 </mml:mtable>\u0000 <mml:mo fence=\"true\" stretchy=\"true\" symmetric=\"true\" />\u0000 </mml:mrow>\u0000</mml:math>\u0000with the parameter <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" xmlns=\"http://www.w3.org/1998/Math/MathML\">\u0000 <mml:mi>μ<!-- μ --></mml:mi>\u0000</mml:math> varying in an open subset <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" xmlns=\"http://www.w3.org/1998/Math/MathML\">\u0000 <mml:mi mathvariant=\"normal\">Λ<!-- Λ --></mml:mi>\u0000 <mml:mo>⊂<!-- ⊂ --></mml:mo>\u0000 <mml:msup>\u0000 <mml:mrow class=\"MJX-TeXAtom-ORD\">\u0000 <mml:mi mathvariant=\"double-struck\">R</mml:mi>\u0000 </mml:mrow>\u0000 <mml:mi>N</mml:mi>\u0000 </mml:msup>\u0000</mml:math>. Compactifying <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" xmlns=\"http://www.w3.org/1998/Math/MathML\">\u0000 <mml:msub>\u0000 <mml:mi>X</mml:mi>\u0000 <mml:mi>μ<!-- μ --></mml:mi>\u0000 </mml:msub>\u0000</mml:math> to the Poincaré disc, the boundary of the first quadrant is an invariant triangle <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" xmlns=\"http://www.w3.org/1998/Math/MathML\">\u0000 <mml:mi mathvariant=\"normal\">Γ<!-- Γ --></mml:mi>\u0000</mml:math>, that we assume to be a hyperbolic polycycle with exact","PeriodicalId":50537,"journal":{"name":"Electronic Journal of Qualitative Theory of Differential Equations","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2022-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42860961","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}
引用次数: 0
Oscillation of half-linear differential equations with mixed type of argument 具有混合型参数的半线性微分方程的振动
IF 1.1 4区 数学
Electronic Journal of Qualitative Theory of Differential Equations Pub Date : 2022-01-01 DOI: 10.14232/ejqtde.2022.1.10
J. Džurina, B. Baculíková
{"title":"Oscillation of half-linear differential equations with mixed type of argument","authors":"J. Džurina, B. Baculíková","doi":"10.14232/ejqtde.2022.1.10","DOIUrl":"https://doi.org/10.14232/ejqtde.2022.1.10","url":null,"abstract":"<jats:p>This paper is devoted to the study of the oscillatory behavior of half-linear functional differential equations with deviating argument of the form <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"block\"> <mml:mtable displaystyle=\"true\"> <mml:mlabeledtr> <mml:mtd id=\"mjx-eqn-Eabs\"> <mml:mrow> <mml:mtext>(</mml:mtext> <mml:mrow class=\"MJX-TeXAtom-ORD\"> <mml:mi>E</mml:mi> </mml:mrow> <mml:mtext>)</mml:mtext> </mml:mrow> </mml:mtd> <mml:mtd> <mml:msup> <mml:mrow> <mml:mo>(</mml:mo> <mml:mrow> <mml:mi>r</mml:mi> <mml:mo stretchy=\"false\">(</mml:mo> <mml:mi>t</mml:mi> <mml:mo stretchy=\"false\">)</mml:mo> <mml:mo stretchy=\"false\">(</mml:mo> <mml:msup> <mml:mi>y</mml:mi> <mml:mo>′</mml:mo> </mml:msup> <mml:mo stretchy=\"false\">(</mml:mo> <mml:mi>t</mml:mi> <mml:mo stretchy=\"false\">)</mml:mo> <mml:msup> <mml:mo stretchy=\"false\">)</mml:mo> <mml:mrow class=\"MJX-TeXAtom-ORD\"> <mml:mi>α<!-- α --></mml:mi> </mml:mrow> </mml:msup> </mml:mrow> <mml:mo>)</mml:mo> </mml:mrow> <mml:mo>′</mml:mo> </mml:msup> <mml:mo>=</mml:mo> <mml:mi>p</mml:mi> <mml:mo stretchy=\"false\">(</mml:mo> <mml:mi>t</mml:mi> <mml:mo stretchy=\"false\">)</mml:mo> <mml:msup> <mml:mi>y</mml:mi> <mml:mrow class=\"MJX-TeXAtom-ORD\"> <mml:mi>α<!-- α --></mml:mi> </mml:mrow> </mml:msup> <mml:mo stretchy=\"false\">(</mml:mo> <mml:mi>τ<!-- τ --></mml:mi> <mml:mo stretchy=\"false\">(</mml:mo> <mml:mi>t</mml:mi> <mml:mo stretchy=\"false\">)</mml:mo> <mml:mo stretchy=\"false\">)</mml:mo> <mml:mo>.</mml:mo> </mml:mtd> </mml:mlabeledtr> </mml:mtable> </mml:math>. We introduce new technique based on monotonic properties of nonoscillatory solutions to offer new oscillatory criteria for <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" xmlns=\"http://www.w3.org/1998/Math/MathML\"> <mml:mrow class=\"MathJax_ref\" href=\"#mjx-eqn-Eabs\"> <mml:mrow> <mml:mtext>(</mml:mtext> <mml:mrow class=\"MJX-TeXAtom-ORD\"> <mml:mi>E</mml:mi> </mml:mrow> <mml:mtext>)</mml:mtext> </mml:mrow> </mml:mrow> </mml:math>. We will show that presented results essentially improve existing ones even for linear differential equations.</jats:p>","PeriodicalId":50537,"journal":{"name":"Electronic Journal of Qualitative Theory of Differential Equations","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66583666","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}
引用次数: 2
Global smooth linearization of nonautonomous contractions on Banach spaces Banach空间上非自治收缩的全局光滑线性化
IF 1.1 4区 数学
Electronic Journal of Qualitative Theory of Differential Equations Pub Date : 2022-01-01 DOI: 10.14232/ejqtde.2022.1.12
D. Dragičević
{"title":"Global smooth linearization of nonautonomous contractions on Banach spaces","authors":"D. Dragičević","doi":"10.14232/ejqtde.2022.1.12","DOIUrl":"https://doi.org/10.14232/ejqtde.2022.1.12","url":null,"abstract":"The main purpose of this paper is to establish a global smooth linearization result for two classes of nonautonomous dynamics with discrete time. More precisely, we consider a nonlinear and nonautonomous dynamics given by a two-sided sequence of maps as well as variational systems whose linear part is contractive, and under suitable assumptions we construct C 1 conjugacies between the original dynamics and its linear part. We stress that our dynamics acts on a arbitrary Banach space. Our arguments rely on related results dealing with autonomous dynamics.","PeriodicalId":50537,"journal":{"name":"Electronic Journal of Qualitative Theory of Differential Equations","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66583745","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}
引用次数: 3
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
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