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Monotonicity in Half-spaces for p-Laplace Problems with a Sublinear Nonlinearity 具有亚线性非线性的 p-Laplace 问题的半空间单调性
IF 1.1 3区 数学
Potential Analysis Pub Date : 2024-07-18 DOI: 10.1007/s11118-024-10157-1
Phuong Le
{"title":"Monotonicity in Half-spaces for p-Laplace Problems with a Sublinear Nonlinearity","authors":"Phuong Le","doi":"10.1007/s11118-024-10157-1","DOIUrl":"https://doi.org/10.1007/s11118-024-10157-1","url":null,"abstract":"<p>We prove the monotonicity of positive solutions to the equation <span>(-Delta _p u = f(u))</span> in <span>(mathbb {R}^N_+)</span> with zero Dirichlet boundary condition, where <span>(1&lt;p&lt;2)</span> and <span>(f:[0,+infty )rightarrow mathbb {R})</span> is a continuous function which is positive and locally Lipschitz continuous in <span>((0,+infty ))</span> and <span>(liminf _{trightarrow 0^+}frac{f(t)}{t^{p-1}}&gt;0)</span>. Furthermore, we allow <i>f</i> to be sign-changing in the case <span>(frac{2N+2}{N+2}&lt;p&lt;2)</span>. The celebrated moving plane method will be used in the proofs of our results.</p>","PeriodicalId":49679,"journal":{"name":"Potential Analysis","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141744404","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
Fine Representation of Hessian of Convex Functions and Ricci Tensor on RCD Spaces 凸函数和里奇张量在 RCD 空间上的精细表示
IF 1.1 3区 数学
Potential Analysis Pub Date : 2024-07-02 DOI: 10.1007/s11118-024-10153-5
Camillo Brena, Nicola Gigli
{"title":"Fine Representation of Hessian of Convex Functions and Ricci Tensor on RCD Spaces","authors":"Camillo Brena, Nicola Gigli","doi":"10.1007/s11118-024-10153-5","DOIUrl":"https://doi.org/10.1007/s11118-024-10153-5","url":null,"abstract":"<p>It is known that on RCD spaces one can define a distributional Ricci tensor <span>(textbf{Ric})</span>. Here we give a fine description of this object by showing that it admits the polar decomposition </p><span>$$begin{aligned} textbf{Ric}=omega ,|textbf{Ric}| end{aligned}$$</span><p>for a suitable non-negative measure <span>(|textbf{Ric}|)</span> and unitary tensor field <span>(omega )</span>. The regularity of both the mass measure and of the polar vector are also described. The representation provided here allows to answer some open problems about the structure of the Ricci tensor in such singular setting. Our discussion also covers the case of Hessians of convex functions and, under suitable assumptions on the base space, of the Sectional curvature operator.</p>","PeriodicalId":49679,"journal":{"name":"Potential Analysis","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141529840","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
Diffusion Processes with One-sided Selfsimilar Random Potentials 具有单边自相似随机势的扩散过程
IF 1.1 3区 数学
Potential Analysis Pub Date : 2024-06-19 DOI: 10.1007/s11118-024-10152-6
Yuki Suzuki, Hiroshi Takahashi, Yozo Tamura
{"title":"Diffusion Processes with One-sided Selfsimilar Random Potentials","authors":"Yuki Suzuki, Hiroshi Takahashi, Yozo Tamura","doi":"10.1007/s11118-024-10152-6","DOIUrl":"https://doi.org/10.1007/s11118-024-10152-6","url":null,"abstract":"<p>Long-time behavior of diffusion processes with one-sided random potentials starting from the origin is studied. As random potentials, some strictly stable processes are given just on the negative side in the real line. This model is an extension of the diffusion process with a one-sided Brownian potential studied by Kawazu, Suzuki and Tanaka (Tokyo J. Math. <b>24</b>, 211–229 2001) and Kawazu and Suzuki (J. Appl. Probab. <b>43</b>, 997–1012 2006). In this paper, we analyze our model by different methods from theirs. We use the theory concerning the convergence of a sequence of bi-generalized diffusion processes studied by Ogura (J. Math. Soc. Japan <b>41</b>, 213–242 1989) and Tanaka (Comm. Pure Appl. Math. <b>47</b>, 755–766 1994). For diffusion processes with one-sided random potentials, the limit theorems introduced by them cannot be used. We improve their limit theorems and apply the improved limit theorem to examining the long-time behavior of our model. As a result, we show that limit distributions exist under the Brownian scaling with some probability, and under a sub-diffusive scaling with the remaining probability.</p>","PeriodicalId":49679,"journal":{"name":"Potential Analysis","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141508934","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
On M. Riesz Conjugate Function Theorem for Harmonic Functions 论 M. Riesz 谐函数的共轭函数定理
IF 1.1 3区 数学
Potential Analysis Pub Date : 2024-06-11 DOI: 10.1007/s11118-024-10150-8
David Kalaj
{"title":"On M. Riesz Conjugate Function Theorem for Harmonic Functions","authors":"David Kalaj","doi":"10.1007/s11118-024-10150-8","DOIUrl":"https://doi.org/10.1007/s11118-024-10150-8","url":null,"abstract":"<p>Let <span>(L^p(textbf{T}))</span> be the Lesbegue space of complex-valued functions defined in the unit circle <span>(textbf{T}={z: |z|=1}subseteq mathbb {C})</span>. In this paper, we address the problem of finding the best constant in the inequality of the form: </p><span>$$ Vert fVert _{L^p(textbf{T})}le A_{p,b} Vert (|P_+ f|^2+b| P_{-} f|^2)^{1/2}Vert _{L^p(textbf{T})}. $$</span><p>Here <span>(pin [1,2])</span>, <span>(b&gt;0)</span>, and by <span>(P_{-} f)</span> and <span>( P_+ f)</span> are denoted the co-analytic and analytic projections of a function <span>(fin L^p(textbf{T}))</span>. The sharpness of the constant <span>(A_{p,b})</span> follows by taking a family quasiconformal harmonic mapping <span>(f_c)</span> and letting <span>(crightarrow 1/p)</span>. The result extends a sharp version of M. Riesz conjugate function theorem of Pichorides and Verbitsky and some well-known estimates for holomorphic functions.</p>","PeriodicalId":49679,"journal":{"name":"Potential Analysis","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141529841","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
Large Deviations of Stochastic Heat Equations with Logarithmic Nonlinearity 具有对数非线性的随机热方程的大偏差
IF 1.1 3区 数学
Potential Analysis Pub Date : 2024-06-11 DOI: 10.1007/s11118-024-10142-8
Tianyi Pan, Shijie Shang, Tusheng Zhang
{"title":"Large Deviations of Stochastic Heat Equations with Logarithmic Nonlinearity","authors":"Tianyi Pan, Shijie Shang, Tusheng Zhang","doi":"10.1007/s11118-024-10142-8","DOIUrl":"https://doi.org/10.1007/s11118-024-10142-8","url":null,"abstract":"<p>In this paper, we establish a large deviation principle for the solutions to the stochastic heat equations with logarithmic nonlinearity driven by Brownian motion, which is neither locally Lipschitz nor locally monotone. Nonlinear versions of Gronwall’s inequalities and Log-Sobolev inequalities play an important role.</p>","PeriodicalId":49679,"journal":{"name":"Potential Analysis","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141508935","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
Finite Time Blow-Up Behaviors of Strong Solutions to the Compressible Navier-Stokes Equations 可压缩纳维-斯托克斯方程强解的有限时间膨胀行为
IF 1.1 3区 数学
Potential Analysis Pub Date : 2024-06-06 DOI: 10.1007/s11118-024-10149-1
Yiping Zhang
{"title":"Finite Time Blow-Up Behaviors of Strong Solutions to the Compressible Navier-Stokes Equations","authors":"Yiping Zhang","doi":"10.1007/s11118-024-10149-1","DOIUrl":"https://doi.org/10.1007/s11118-024-10149-1","url":null,"abstract":"","PeriodicalId":49679,"journal":{"name":"Potential Analysis","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141375953","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
Existence and Uniqueness for McKean-Vlasov Equations with Singular Interactions 具有奇异相互作用的麦金-弗拉索夫方程的存在性和唯一性
IF 1.1 3区 数学
Potential Analysis Pub Date : 2024-06-04 DOI: 10.1007/s11118-024-10148-2
Guohuan Zhao
{"title":"Existence and Uniqueness for McKean-Vlasov Equations with Singular Interactions","authors":"Guohuan Zhao","doi":"10.1007/s11118-024-10148-2","DOIUrl":"https://doi.org/10.1007/s11118-024-10148-2","url":null,"abstract":"<p>We investigate the well-posedness of following McKean-Vlasov equation in <span>(mathbb {R}^d)</span>: </p><span>$$textrm{d} X_t=sigma (t,X_t, mu _{X_t})textrm{d} W_t+b(t, X_t, mu _{X_t}) textrm{d} t,$$</span><p>where <span>(mu _{X_t})</span> is the law of <span>(X_t)</span>. The existence of solutions is demonstrated when <span>(sigma )</span> satisfies certain non-degeneracy and continuity assumptions, and when <i>b</i> meets some integrability conditions, and continuity requirements in the (generalized) total variation distance. Furthermore, uniqueness is established under additional continuity assumptions of a Lipschitz type.</p>","PeriodicalId":49679,"journal":{"name":"Potential Analysis","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141256419","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
Construction of a Dirichlet form on Metric Measure Spaces of Controlled Geometry 构建可控几何公度量空间上的狄利克特形式
IF 1.1 3区 数学
Potential Analysis Pub Date : 2024-06-01 DOI: 10.1007/s11118-024-10144-6
Almaz Butaev, Liangbing Luo, Nageswari Shanmugalingam
{"title":"Construction of a Dirichlet form on Metric Measure Spaces of Controlled Geometry","authors":"Almaz Butaev, Liangbing Luo, Nageswari Shanmugalingam","doi":"10.1007/s11118-024-10144-6","DOIUrl":"https://doi.org/10.1007/s11118-024-10144-6","url":null,"abstract":"<p>Given a compact doubling metric measure space <i>X</i> that supports a 2-Poincaré inequality, we construct a Dirichlet form on <span>(N^{1,2}(X))</span> that is comparable to the upper gradient energy form on <span>(N^{1,2}(X))</span>. Our approach is based on the approximation of <i>X</i> by a family of graphs that is doubling and supports a 2-Poincaré inequality (see [20]). We construct a bilinear form on <span>(N^{1,2}(X))</span> using the Dirichlet form on the graph. We show that the <span>(Gamma )</span>-limit <span>(mathcal {E})</span> of this family of bilinear forms (by taking a subsequence) exists and that <span>(mathcal {E})</span> is a Dirichlet form on <i>X</i>. Properties of <span>(mathcal {E})</span> are established. Moreover, we prove that <span>(mathcal {E})</span> has the property of matching boundary values on a domain <span>(Omega subseteq X)</span>. This construction makes it possible to approximate harmonic functions (with respect to the Dirichlet form <span>(mathcal {E})</span>) on a domain in <i>X</i> with a prescribed Lipschitz boundary data via a numerical scheme dictated by the approximating Dirichlet forms, which are discrete objects.</p>","PeriodicalId":49679,"journal":{"name":"Potential Analysis","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141197925","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
Lipschitz Regularity for a Priori Bounded Minimizers of Integral Functionals with Nonstandard Growth 具有非标准增长的积分函数的先验有界最小化的 Lipschitz 正则性
IF 1.1 3区 数学
Potential Analysis Pub Date : 2024-05-28 DOI: 10.1007/s11118-024-10146-4
Michela Eleuteri, Antonia Passarelli di Napoli
{"title":"Lipschitz Regularity for a Priori Bounded Minimizers of Integral Functionals with Nonstandard Growth","authors":"Michela Eleuteri, Antonia Passarelli di Napoli","doi":"10.1007/s11118-024-10146-4","DOIUrl":"https://doi.org/10.1007/s11118-024-10146-4","url":null,"abstract":"<p>We establish the Lipschitz regularity of the a priori bounded local minimizers of integral functionals with non autonomous energy densities satisfying non standard growth conditions under a bound on the gap between the growth and the ellipticity exponent that is reminiscent of the sharp bound already found in [16].</p>","PeriodicalId":49679,"journal":{"name":"Potential Analysis","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141168073","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
Large Deviation Principle for a Class of Stochastic Partial Differential Equations with Fully Local Monotone Coefficients Perturbed By Lévy Noise 受列维噪声扰动的具有完全局部单调系数的一类随机偏微分方程的大偏差原理
IF 1.1 3区 数学
Potential Analysis Pub Date : 2024-05-25 DOI: 10.1007/s11118-024-10147-3
Ankit Kumar, Manil T. Mohan
{"title":"Large Deviation Principle for a Class of Stochastic Partial Differential Equations with Fully Local Monotone Coefficients Perturbed By Lévy Noise","authors":"Ankit Kumar, Manil T. Mohan","doi":"10.1007/s11118-024-10147-3","DOIUrl":"https://doi.org/10.1007/s11118-024-10147-3","url":null,"abstract":"<p>The asymptotic analysis of a class of stochastic partial differential equations (SPDEs) with fully local monotone coefficients covering a large variety of physical systems, a wide class of quasilinear SPDEs and a good number of fluid dynamic models is carried out in this work. The aim of this work is to develop the large deviation theory for small Gaussian as well as Poisson noise perturbations of the above class of SPDEs. We establish a Wentzell-Freidlin type large deviation principle for the strong solution to such SPDEs perturbed by a multiplicative Lévy noise in a suitable Polish space using a variational representation (based on a weak convergence approach) for nonnegative functionals of general Poisson random measures and Brownian motions. The well-posedness of an associated deterministic control problem is established by exploiting pseudo-monotonicity arguments and the stochastic counterpart is obtained by an application of Girsanov’s theorem.</p>","PeriodicalId":49679,"journal":{"name":"Potential Analysis","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141145882","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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