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This thesis is about local and non-local Dirichlet forms on the Sierpi\'nski gasket and the Sierpi\'nski carpet. We are concerned with the following three problems in analysis on the Sierpi\'nski gasket and the Sierpi\'nski carpet. First, a…

Functional Analysis · Mathematics 2019-01-23 Meng Yang

We study relations and characterizations of various elliptic Harnack inequalities for symmetric non-local Dirichlet forms on metric measure spaces. We allow the scaling function be state-dependent and the state space possibly disconnected.…

Probability · Mathematics 2017-09-06 Zhen-Qing Chen , Takashi Kumagai , Jian Wang

Inspired by a recent article on Fr\'echet spaces of ordinary Dirichlet series $\sum a_n n^{-s}$ due to J.~Bonet, we study topological and geometrical properties of certain scales of Fr\'echet spaces of general Dirichlet spaces $\sum a_n…

Functional Analysis · Mathematics 2020-12-16 Andreas Defant , Tomas Fernandez-Vidal , Ingo Schoolmann , Pablo Sevilla-Peris

Given a subset $D$ of the Euclidean space, we study nonlocal quadratic forms that take into account tuples $(x,y) \in D \times D$ if and only if the line segment between $x$ and $y$ is contained in $D$. We discuss regularity of the…

Analysis of PDEs · Mathematics 2018-10-30 Moritz Kassmann , Vanja Wagner

The present note contains a review of $p$-energies and Sobolev spaces on metric measure spaces that carry a strongly local regular Dirichlet form. These Sobolev spaces are then used to generalize some basic results from the calculus of…

Analysis of PDEs · Mathematics 2018-05-14 Michael Hinz , Dorina Koch , Melissa Meinert

We study ergodic decompositions of Dirichlet spaces under intertwining via unitary order isomorphisms. We show that the ergodic decomposition of a quasi-regular Dirichlet space is unique up to a unique isomorphism of the indexing space.…

Functional Analysis · Mathematics 2023-01-10 Lorenzo Dello Schiavo , Melchior Wirth

We study the Dirichlet problem for functions whose graphs are spacelike hypersurfaces with prescribed curvature in the Minkowski space and we obtain some new interior second order estimates for admissible solutions to the corresponding…

Analysis of PDEs · Mathematics 2025-07-25 Bin Wang

We develop sufficient analytic conditions for conservativeness of non-sectorial perturbations of symmetric Dirichlet forms which can be represented through a carr\'e du champ on a locally compact separable metric space. These form an…

Probability · Mathematics 2017-10-10 Minjung Gim , Gerald Trutnau

Quasidiffusions are, by definition, time-changed Brownian motions on certain closed subset of $\mathbb{R}$. They admit an explicit representation of Dirichlet forms in terms of so-called speed measures. The Fukushima subspace of a Dirichlet…

Probability · Mathematics 2023-03-15 Liping Li , Jiangang Ying

In this paper we study the global regularity for the solution to the Dirichlet problem of the equation of minimal graphs over a convex domain in hyperbolic spaces. We find that the global regularity depends only on the convexity of the…

Analysis of PDEs · Mathematics 2019-08-20 Huaiyu Jian , You Li

We establish an upper bound of the bottom of the essential spectrum for the generator associated with a regular Dirichlet form in terms of the rates of the volume growth/decay and big jump. Using this bound, we discuss how the bottom of the…

Probability · Mathematics 2025-04-01 Yuichi Shiozawa

In this paper, we study the Dirichlet problem for a class of prescribed curvature equations in Minkowski space. We prove the existence of smooth spacelike hypersurfaces with a class of prescribed curvature and general boundary data based on…

Analysis of PDEs · Mathematics 2024-09-06 Mengru Guo , Heming Jiao

We derive the solvability and regularity of the Dirichlet problem for fully non-linear elliptic equations possibly with degenerate right-hand side on Hermitian manifolds, through establishing a quantitative version of boundary estimate…

Analysis of PDEs · Mathematics 2022-03-10 Rirong Yuan

F.-H. Lin studied minimal graphs of the Dirichlet problem in the hyperbolic space and proved that any such minimal graph has the same global regularity as the boundary if the dimension of the minimal graph is even and that there is an…

Analysis of PDEs · Mathematics 2022-09-01 Qing Han , Xumin Jiang

It is well known that a regular diffusion on an interval $I$ without killing inside is uniquely determined by a canonical scale function $s$ and a canonical speed measure $m$. Note that $s$ is a strictly increasing and continuous function…

Probability · Mathematics 2023-03-15 Liping Li

Motivated by persistent homology and topological data analysis, we consider formal sums on a metric space with a distinguished subset. These formal sums, which we call persistence diagrams, have a canonical 1-parameter family of metrics…

Algebraic Topology · Mathematics 2025-02-19 Peter Bubenik , Iryna Hartsock

In this paper, we initiate the study of constant dimension subspace codes restricted to Schubert varieties, which we call Schubert subspace codes. These codes have a very natural geometric description, as objects that we call intersecting…

Information Theory · Computer Science 2024-05-31 Gianira N. Alfarano , Joachim Rosenthal , Beatrice Toesca

We show continuity in generalized weighted Morrey spaces of sub-linear integral operators generated by some classical integral operators and commutators. The obtained estimates are used to study global regularity of the solution of the…

Analysis of PDEs · Mathematics 2025-12-10 Vagif S. Guliyev , Mehriban Omarova , Lubomira Softova

We present a decomposition principle for general regular Dirichlet forms satisfying a spatial local compactness condition. We use the decomposition principle to derive a Persson type theorem for the corresponding Dirichlet forms. In…

Spectral Theory · Mathematics 2017-06-07 Daniel Lenz , Peter Stollmann

We introduce and study the Dirichlet problem for double divergence form elliptic equations with coefficients of low regularity and boundary conditions given by general Borel measures. Under broad assumptions we establish the solvability of…

Analysis of PDEs · Mathematics 2026-05-26 V. I. Bogachev , S. V. Shaposhnikov