Shoo Seto, Guofang Wei
We give various estimates of the first eigenvalue of the $p$-Laplace operator on closed Riemannian manifold with integral curvature conditions.
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Stability and Perturbations of the Domain for the First Eigenvalue of the 1-Laplacian
讨论了1-Laplacian算子第一特征值在区域扰动下的稳定性。
On Lower Bounds of the First Eigenvalue of Finsler-Laplacian
利用Bochner技巧和梯度估计，给出了Finsler流形上Finsler Laplacian第一特征值的下界估计.这些结果推广了黎曼几何中相应的著名定理。
Eigenvalues of the Laplacian under the Ricci Flow
在一个技术性假设下，导出了由里奇流演化的闭流形上拉普拉斯算子的特征值的一阶变分公式，并给出了一些应用.
A lower bound for eigenvalues of the poly-Laplacian with arbitrary order
本文研究了$n$维欧几里得空间中有界域上任意阶多拉普拉斯算子的特征值，得到了特征值的一个下界，改进了Levine和Protter的结果.特别地，Melas的结果包括在这里。
Estimate for the first Dirichlet eigenvalue of $p-$Laplacian on non-compact manifolds
本文研究了非紧黎曼流形上 $p$-拉普拉斯算子第一个狄利克雷特征值的估计问题，得出了具有非负里奇曲率的完整非紧流形上的精确下界结果。
New inequalities for eigenvalues of the Dirichlet Laplacian on the hyperbolic space
本文基于对狄利克雷拉普拉斯算子特征值通用不等式的研究，证明了超几何空间上相关特征值的新不等式，并验证了陈猜想在两种特殊有界域中的成立，允许ε损失。
We establish an explicit lower bound of the first eigenvalue of the Laplacian on Kähler manifolds based off the comparison results of Li and Wang. The lower bound will depend on the diameter, dimension, holomorphic sectional curvature and orthogonal Ricci curvature.
Lower bounds for the first eigenvalue of the $p$-Laplacian on quaternionic Kähler manifolds
本文研究紧致四元数 Kähler 流形上 $p$-Laplacian 的特征值，分别建立闭流形首个非零 Neumann 特征值及带光滑边界情形第一 Dirichlet 特征值的下界，推广了已有 Laplacian 结果。
In this paper, we mainly study eigenvalue problems of p-Laplacian on domains with an interior hole. Firstly we prove Faber-Krahn-type inequalities, and Cheng-type eigenvalue comparison theorems on manifolds. Secondly, we prove a comparison theorem for eigenvalues with inner Dirichlet and outer Neumann boundary in minimal submanifolds in Euclidean space. Lastly we give a sharp estimate of the eigenvalue (with outer Dirichlet and inner Neumann boundaries) in terms of the Dircihlet eigenvalue, and also we give an upper bound of the eigenvalue with inner Dirichlet and outer Neumann problems by the…
In this paper, we investigate eigenvalues of the Dirichlet problem and the closed eigenvalue problem of drifting Laplacian on the complete metric measure spaces and establish the corresponding general formulas. By using those general formulas, we give some upper bounds of consecutive gap of the eigenvalues of the eigenvalue problems, which is sharp in the sense of the order of the eigenvalues. As some interesting applications, we study the eigenvalue of drifting Laplacian on Ricci solitons, self-shrinkers and product Riemannian manifolds. We give the explicit upper bounds of the gap of the con…
Extremal metrics for the eigenvalues of the Laplacian on manifolds with boundary
本文研究带边流形上拉普拉斯算子特征值的极值度量问题，证明诺伊曼拉普拉斯算子在任意紧致流形上不存在极值度量，并在环域中构造共形极值度量，同时证明狄利克雷拉普拉斯算子在紧致曲面上也不存在极值度量。
Lower bounds for the first Laplacian eigenvalue of geodesic balls of spherically symmetric manifolds
得到了球对称流形测地球的第一Laplacian特征值的下界。这些下界仅是依赖于度量系数的$C^{0}$。
Some universal inequalities for Dirichlet eigenvalues of the Laplacian on a Euclidean convex domain
本文建立了欧几里得凸域上拉普拉斯算子狄利克雷本征值的两个通用不等式，探讨了相关数学性质。
A note on the distribution of Neumann eigenvalues of the Laplacian on a Euclidean convex domain
本文研究了欧几里得凸域上拉普拉斯算子Neumann特征值的分布，建立了两个通用不等式。
Bounds for eigenvalue ratios of the Laplacian
对于$n$维欧几里得空间$\mathbf{R}^{n}$中具有分片光滑边界的有界区域$Ω$，研究了Laplacian算子的Dirichlet本征值问题的特征值问题.首先给出了拉普拉斯算子特征值的一个一般不等式。作为应用，我们研究了拉普拉斯算子的低阶特征值，导出了拉普拉斯算子的低阶特征值之比。
Estimates for lower bounds of eigenvalues of the poly-Laplacian and quadratic polynomial operator of the Laplacian
本文研究了任意阶的多拉普拉斯算子的Dirchlet本征值问题和拉普拉斯算子的二次多项式算子。给出了它们的第一$k$特征值和的下界估计，改进了已有的结果.
This paper is concerned with the Dirichlet eigenvalue problem associated to the $\infty$-Laplacian in metric spaces. We establish a direct PDE approach to find the principal eigenvalue and eigenfunctions in a proper geodesic space without assuming any measure structure. We provide an appropriate notion of solutions to the $\infty$-eigenvalue problem and show the existence of solutions by adapting Perron's method. Our method is different from the standard limit process via the variational eigenvalue formulation for $p$-Laplacian in the Euclidean space.
We study the eigenvalue problem for the $p$-Laplacian on Kähler manifolds. Our first result is a lower bound for the first nonzero eigenvalue of the $p$-Laplacian on compact Kähler manifolds in terms of dimension, diameter, and lower bounds of holomorphic sectional curvature and orthogonal Ricci curvature for $p\in (1, 2]$. Our second result is a sharp lower bound for the first Dirichlet eigenvalue of the $p$-Laplacian on compact Kähler manifolds with smooth boundary for $p\in (1, \infty)$. Our results generalize corresponding results for the Laplace eigenvalues on Kähler manifolds proved in […
Inequalities for eigenvalues of the weighted Hodge Laplacian
本文得到了欧几里得空间的紧自收缩体上加权Hodge Laplacian特征值的“泛”不等式.这些不等式推广了Laplacian和Laplacian特征值的Yang型不等式和Levitin-Parnovski不等式。由Cheng和Yang \cite{ChengYang07}的递推公式，证明了加权Hodge Laplacian的特征值的Yang型不等式在特征值的阶意义下是最优的.
In this paper, we study a first Dirichlet eigenfunction of the weighted $p$-Laplacian on a bounded domain in a complete weighted Riemannian manifold. By constructing gradient estimates for a first eigenfunction, we obtain some relationships between weighted $p$-Laplacian first eigenvalues. As an immediate application, we also obtain some eigenvalue comparison results between the first Dirichlet eigenvalue of the weighted Laplacian, the first clamped plate eigenvalue and the first buckling eigenvalue.
Lower Bounds for Laplacian and Fractional Laplacian Eigenvalues
本文研究了$n$维欧几里得空间中有界区域上Laplacian算子的特征值，得到了其特征值和的一个更精确的下界，改进了A. D. Melas [15].另一方面，对于分数Laplacian $(-Δ)^{α/2}|_{D}$，其中$α\in(0,2]$，我们得到了其特征值之和的更精确的下界，改进了S.Y. Yolcu和T. Yolcu [23].
We establish lower bound for the first nonzero eigenvalue of the Laplacian on a closed Kähler manifold in terms of dimension, diameter, and lower bounds of holomorphic sectional curvature and orthogonal Ricci curvature. On compact Kähler manifolds with boundary, we prove lower bounds for the first nonzero Neumann or Dirichlet eigenvalue in terms of geometric data. Our results are Kähler analogues of well-known results for Riemannian manifolds.
In this paper, we study monotonicity for the first eigenvalue of a class of $(p,q)$-Laplacian. We find the first variation formula for the first eigenvalue of $(p,q)$-Laplacian on a closed Riemannian manifold evolving by the Ricci-harmonic flow and construct various monotic quantities by imposing some conditions on initial manifold.
We study the Robin eigenvalue problem for the Laplace-Beltrami operator on Riemannian manifolds. Our first result is a comparison theorem for the second Robin eigenvalue on geodesic balls in manifolds whose sectional curvatures are bounded from above. Our second result asserts that geodesic balls in nonpositively curved space forms maximize the second Robin eigenvalue among bounded domains of the same volume.
Eigenvalues of the Laplacian on Riemannian manifolds
对于完备黎曼流形$M$中具有分片光滑边界的有界区域$Ω$，研究了Laplacian算子的Dirichlet本征值问题的特征值问题.利用本征函数代替Rayleigh-Ritz公式形成$L^2(Ω)$的规范正交基这一事实，得到了拉普拉斯算子的本征值不等式.特别地，对于低阶特征值，我们的结果推广了Chen和Cheng \cite{CC}的结果.
Two new universal inequalities for Neumann eigenvalues of the Laplacian on a planar convex domain
本文提出两个新通用不等式，用于平面凸域中拉普拉斯算子的Neumann特征值，扩展了相关理论的应用范围。
We consider the first Robin eigenvalue $ł_p(M,\a)$ for the $p$-Laplacian on a compact Riemannian manifold $M$ with nonempty smooth boundary, with $\a \in \R$ being the Robin parameter. Firstly, we prove eigenvalue comparison theorems of Cheng type for $ł_p(M,\a)$. Secondly, when $\a>0$ we establish sharp lower bound of $ł_p(M,\a)$ in terms of dimension, inradius, Ricci curvature lower bound and boundary mean curvature lower bound, via comparison with an associated one-dimensional eigenvalue problem. The lower bound becomes an upper bound when $\a<0$. Our results cover corresponding comparison …
We consider the Steklov problem associated with the weighted p-Laplace operator and $(p,q)$-Laplacian on submanifolds with the boundary of Euclidean spaces and prove Reilly-type upper bounds for their first eigenvalues.
We prove a Lichnerowicz type lower bound for the first nontrivial eigenvalue of the $p$-Laplacian on Kähler manifolds. Parallel to the $p = 2$ case, the first eigenvalue lower bound is improved by using a decomposition of the Hessian on Kähler manifolds with positive Ricci curvature.
In this paper, we obtain a comparison of Steklov eigenvalues and Laplacian eigenvalues on graphs and discuss its rigidity. As applications of the comparison of eigenvalues, we obtain Lichnerowicz-type estimates and some combinatorial estimates for Steklov eigenvalues on graphs.
Universal inequalities for eigenvalues of the Dirichlet Laplacian on conformally flat Riemannian manifolds
本文研究了共形平坦黎曼流形上Dirichlet Laplacian的特征值问题，并在双曲空间$\mathbb{H}^n(-1)$上建立了特征值的普遍不等式。
On the first eigenvalue of the Hodge Laplacian of submanifolds
本文证明在空间形式中闭子流形的第一个p-特征值的严格下界等号成立仅可能在正曲率的球面成立。
In this paper, we establish gradient estimates for positive solutions to the following equation with respect to the $p$-Laplacian $$Δ_{p}u=-λ|u|^{p-2}u$$ with $p>1$ on a given complete Riemannian manifold. Consequently, we derive upper bound estimates of the first nontrivial eigenvalue of the $p$-Laplacian.
Inequalities for eigenvalues of Laplacian and biharmonic operators on submanifolds
本文研究了完备流形紧致区域上 Laplacian 和 biharmonic 算子的特征值，利用 Sobolev 型不等式分别建立了这两种算子特征值的若干新不等式。
In this paper, we present a Lichnerowicz type estimate and (higher order) Buser type estimates for the magnetic Laplacian on a closed Riemannian manifold with a magnetic potential. These results relate eigenvalues, magnetic fields, Ricci curvature, and Cheeger type constants.
We give upper bounds on the eigenvalues of the differential form Laplacian on a compact Riemannian manifold. The proof uses Alexandrov spaces with curvature bounded below. We also construct differential form Laplacians on Alexandrov spaces. Under a local biLipschitz assumption on the Alexandrov space, which is conjecturally always satisfied, we show that the differential form Laplacian has a compact resolvent. We identify its kernel with an intersection homology group.
We prove that the first positive eigenvalue, normalized by the volume, of the sub-Laplacian associated with a strictly pseudoconvex pseudo-Hermitian structure $\θ$ on the CR sphere S 2n+1 $\subset$ C n+1 , achieves its maximum when $\θ$ is the standard contact form.
Eigenvalues of the Witten-Laplacian on compact Riemannian manifolds
本文研究了$n$维紧致黎曼流形上Witten-Laplacian算子闭本征值问题的特征值.给出了特征值的估计。作为应用，我们给出了单位球面上$k^{\text{th}}$特征值的一个精确上界，并对单位球面上的等参极小超曲面，给出了Laplacian算子的$(n+3)^{\text{th}}$特征值的一个显式上界.进一步推广了Reilly关于Laplacian第一特征值的结果.
In this paper, we obtain lower bounds for the first eigenvalue to some kinds of the eigenvalue problems for Bi-drifted Laplacian operator on compact manifolds (also called a smooth metric measure space) with boundary and $m$-Bakry-Emery Ricci curvature or Bakry-Emery Ricci curvature bounded below. We also address the eigenvalue problem with Wentzell-type boundary condition for drifted Laplacian on smooth metric measure space.
We show that zero is not an eigenvalue of the conformal Laplacian for generic Riemannian metrics. We also discuss non-compactness for sequences of metrics with growing number of negative eigenvalues of the conformal Laplacian.
Given a Finsler manifold $(M,F)$, it is proved that the first eigenvalue of the Finslerian $p$-Laplacian is bounded above by a constant depending on $\ p$, the dimension of $M$, the Busemann-Hausdorff volume and the reversibility constant of $(M,F)$. For a Randers manifold $(M,F:=\sqrt{g}+β)$, where $g$ is a Riemannian metric on $M$ and $β$ an appropriate $1$-form on $M$, it is shown that the first eigenvalue $λ_{1,p}(M,F)$ of the Finslerian $p$-Laplacian defined by the Finsler metric $F$ is controled by the first eigenvalue $λ_{1,p}(M,g)$ of the Riemannian $p$-Laplacian defined on $(M,g)$. Fi…
In the present paper we study some kinds of the problems for the bi-drifting Laplacian operator and get some sharp lower bounds for the first eigenvalue for these eigenvalue problems on compact manifolds with boundary (also called a smooth metric measure space) and weighted Ricci curvature bounded inferiorly.
Chung-Grigor'yan-Yau's inequality describes upper bounds of eigenvalues of Laplacian in terms of subsets ("input") and their volumes. In this paper we will show that we can reduce "input" in Chung-Grigor'yan-Yau's inequality in the setting of Alexandrov spaces satisfying CD$(0,\infty)$. We will also discuss a related conjecture for some universal inequality among eigenvalues of Laplacian.
we introduce a generalization of the $p$-Laplace operator to act on differential forms and generalize an estimate of Gallot-Meyer for the first nonzero eigenvalue on closed Riemannian manifolds.
Stable bundles and the first eigenvalue of the Laplacian
本文利用稳定丛和平衡基研究了紧致Kaehler流形上Laplacian的第一特征值。
Bounds for the first eigenvalue of the horizontal Laplacian in positively curved sub-Riemannian manifolds
我们建立了第二步中定义在满足正曲率条件的次黎曼流形上的自然几何次椭圆拉普拉斯算子的第一非零特征值的下界。这些方法具有很好的一般性，即使在次黎曼几何具有相当大的挠率的情况下也可以应用。
Estimates for Eigenvalues of the Dirichlet Laplacian on Riemannian Manifolds
本文重新探讨了完备黎曼流形有界域上 Dirichlet Laplacian 的特征值问题，基于 Li-Yau 和 Yang 不等式等经典结果推导出特征值上下界，并对射影空间及其极小子流形给出了特征值下界的显式估计。
Remark on the paper "Eigenvalues of the Witten-Laplacian on compact Riemannian manifolds" Q.-M. Cheng and L. Zeng [arXiv:1304.3212]
为什么那篇文章[arXiv：1304.3212]的结果是已知结果的直接后果。
A remark on the first eigenvalue of the p-Laplacian on compact submanifolds in the unit sphere
本文针对3/2<p<2建立了奇异p-laplacian的积分不等式，并由此推导出单位球面中极小子流形和预定数量曲率子流形p-laplacian第一特征值的下界。
Small eigenvalues of pseudo-Laplacians
本文扩展了Otal-Rosas对超曲面小特征值的界限到伪拉普拉斯算子，并将Colin de Verdière的谱理论扩展到具有多个孔的超曲面。
We give some sharp lower bounds of the first eigenvalue for the Hodge Laplacian acting on differential forms on the boundary of a Riemannian manifold. We also give some sharp estimates for the first nonzero Steklov eigenvalue for differential forms.
A new characterization of the CR shpere and the sharp eigenvalue estimate for the Kohn Laplacian
受Kohn Laplacian的特征值估计的启发，我们证明了一个定理，该定理描述了CR球的存在性，即满足某个超定组的非平凡复值函数。
In this paper, we give some lower bounds for several eigenvalues. Firstly, we investigate the eigenvalues $λ_i$ of the Laplace operator and prove a sharp lower bound. Moreover, we extent this estimate of the eigenvalues to general cases. Secondly, we study the eigenvalues $Γ_i$ for the clamped plate problem and deliver a sharp bound for the clamped plate problem for arbitrary dimension.
Conformal mappings and first eigenvalue of Laplacian on surfaces
本文给出了欧几里得空间中曲面的共形映射与拉普拉斯算子第一特征值之间的一个简单关系。
Discrete time random walks on a finite set naturally translate via a one-to-one correspondence to discrete Laplace operators. Typically, Ollivier curvature has been investigated via random walks. We first extend the definition of Ollivier curvature to general weighted graphs and then give a strikingly simple representation of Ollivier curvature using the graph Laplacian. Using the Laplacian as a generator of a continuous time Markov chain, we connect Ollivier curvature with the heat equation which is strongly related to continuous time random walks. In particular, we prove that a lower bound o…
On closed Riemannian manifolds with Bakry-Émery Ricci curvature bounded from below and bounded gradient of the potential function, we obtain lower bounds for all positive eigenvalues of the Beltrami-Laplacian instead of the drifted Laplacian. The lower bound of the $k$th eigenvalue depends on $k$, Bakry-Émery Ricci curvature lower bound, the gradient bound of the potential function, and the dimension and diameter upper bound of the manifold, but the volume of the manifold is not involved. Especially, these results apply to closed manifolds with Ricci curvature bounded from below.
Lower order eigenvalues of the poly-Laplacian with any order on spherical domains
本文研究了球面域上任意阶多拉普拉斯算子的低阶特征值。我们得到了它们的泛不等式，并证明了我们的结果是最优的。
Sub-Laplacian eigenvalue bounds on CR manifolds
我们证明了CR流形上与伪厄米特结构无关的次拉普拉斯特征值的上界。这些界限与Menikoff-Sjoestrand渐近定律是相容的，并且可以被看作是共形度量的拉普拉斯特征值的Korevaar界限的CR版本。
In this paper, we settle in the affirmative the Jakobson-Levitin-Nadirashvili-Nigam-Polterovich conjecture, stating that a certain singular metric on the Bolza surface, with area normalized, should maximize the first eigenvalue of the Laplacian.
We define the distance between edges of graphs and study the coarse Ricci curvature on edges. We consider the Laplacian on edges based on the Jost-Horak's definition of the Laplacian on simplicial complexes. As one of our main results, we obtain an estimate of the first non-zero eigenvalue of the Laplacian by the Ricci curvature for a regular graph.
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