[HTML][HTML] Cones over metric measure spaces and the maximal diameter theorem

C Ketterer - Journal de Mathématiques Pures et Appliquées, 2015 - Elsevier
The main result of this article states that the (K, N)-cone over some metric measure space
satisfies the reduced Riemannian curvature-dimension condition RCD⁎(KN, N+ 1) if and …

[HTML][HTML] A note on self-adjoint extensions of the Laplacian on weighted graphs

X Huang, M Keller, J Masamune… - Journal of Functional …, 2013 - Elsevier
We study the uniqueness of self-adjoint and Markovian extensions of the Laplacian on
weighted graphs. We first show that, for locally finite graphs and a certain family of metrics …

Approximation, regularity and positivity preservation on Riemannian manifolds

S Pigola, D Valtorta, G Veronelli - Nonlinear Analysis, 2024 - Elsevier
The paper focuses on the L p-Positivity Preservation property (L p-PP for short) on a
Riemannian manifold (M, g). It states that any L p function u with 1< p<+∞, which solves …

[HTML][HTML] Removable sets and Lp-uniqueness on manifolds and metric measure spaces

M Hinz, J Masamune, K Suzuki - Nonlinear Analysis, 2023 - Elsevier
We study symmetric diffusion operators on metric measure spaces. Our main question is
whether essential self-adjointness or L p-uniqueness are preserved under the removal of a …

[HTML][HTML] Self-adjoint extensions and stochastic completeness of the Laplace–Beltrami operator on conic and anticonic surfaces

U Boscain, D Prandi - Journal of Differential Equations, 2016 - Elsevier
We study the evolution of the heat and of a free quantum particle (described by the
Schrödinger equation) on two-dimensional manifolds endowed with the degenerate …

Self‐adjoint and Markovian extensions of infinite quantum graphs

A Kostenko, D Mugnolo… - Journal of the London …, 2022 - Wiley Online Library
We investigate the relationship between one of the classical notions of boundaries for
infinite graphs, graph ends, and self‐adjoint extensions of the minimal Kirchhoff Laplacian …

[图书][B] Laplacians on infinite graphs

A Kostenko, N Nicolussi - 2023 - ems.press
The main focus in this memoir is on Laplacians on both weighted graphs and weighted
metric graphs. Let us emphasize that we consider infinite locally finite graphs and do not …

Energy forms

M Schmidt - arXiv preprint arXiv:1703.04883, 2017 - arxiv.org
In this thesis we study energy forms. These are quadratic forms on the space of real-valued
measurable $ m $-ae determined functions $$ E: L^ 0 (m)\to [0,\infty], $$ which assign to a …

[HTML][HTML] Symmetry of solutions to semilinear PDEs on Riemannian domains

A Bisterzo, S Pigola - Nonlinear Analysis, 2023 - Elsevier
This paper deals with symmetry phenomena for solutions to the Dirichlet problem involving
semilinear PDEs on Riemannian domains. We shall present a rather general framework …

Maximum principles in unbounded Riemannian domains

A Bisterzo - arXiv preprint arXiv:2309.09895, 2023 - arxiv.org
The necessity of a Maximum Principle arises naturally when one is interested in the study of
qualitative properties of solutions to partial differential equations. In general, to ensure the …