Results 91 to 100 of about 1,718 (227)

A LIOUVILLE TYPE THEOREM FOR HARMONIC MORPHISMS

open access: yesJournal of the Korean Mathematical Society, 2007
Let M be a complete Riemannian manifold and let N be a Riemannian manifold of nonpositive scalar curvature. Let μ0 be the least eigenvalue of the Laplacian acting on L2-functions on M . We show that if RicM ≥ −μ0 at all x ∈ M and either RicM > −μ0 at some point x0 or Vol(M) is infinite, then every harmonic morphism φ : M → N of finite energy is ...
Seoung-Dal Jung   +2 more
openaire   +1 more source

Quasi‐Trapped Zebra Stripes: Radial Transport Driven by Dual‐Pulse Electric Fields

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Energetic electron spectra in Earth's inner radiation belt often exhibit regular stripe‐like features, known as “zebra stripes,” which are typically attributed to the drift motion of stably‐trapped electrons disturbed by electric field perturbations.
Ziyang Wang   +5 more
wiley   +1 more source

On the confinement of bounded entire solutions to a class of semilinear elliptic systems

open access: yes, 2014
Under appropriate assumptions, we show that all bounded entire solutions to a class of semilinear elliptic systems are confined in a convex domain. Moreover, we prove a Liouville type theorem in the case where the domain is strictly convex.
Sourdis, Christos, Christos Sourdis
core  

An extension of the first eigen-Type Ambarzumyan theorem

open access: yes, 2020
An extension of the first eigenvalue-type Ambarzumyan's theorem are provided for arbitrary self-adjoint Sturm-Liouville differential operators. © 2020.
Kıraç, Alp Arslan
core   +1 more source

Generalized Picone's identity and its applications

open access: yesElectronic Journal of Differential Equations, 2013
In this article we give a generalized version of Picone's identity in a nonlinear setting for the p-Laplace operator. As applications we give a Sturmian Comparison principle and a Liouville type theorem.
Kaushik Bal
doaj  

On Gauge‐Invariant Entire Function Regulators and UV Finiteness in Non Local Quantum Field Theory

open access: yesAnnalen der Physik, Volume 538, Issue 4, April 2026.
We regulate the theory with an entire function of the covariant operator F(□/M∗2)$F(\square /M^{2}_{*})$. In the perturbative vacuum this becomes a momentum‐space factor F(−p2/M∗2)$F(-p^{2}/M^{2}_{*})$ that exponentially damps high momenta, most transparent after Wick rotation, rendering loop integrals UV finite.
J. W. Moffat, E. J. Thompson
wiley   +1 more source

On the Sturm-Liouville-type boundary value problem

open access: yes, 1985
The problems of existence, uniqueness and continuous dependence on parameter of solutions of the nonlinear boundary value problem of Sturm-Liouville type for ordinary differential equations are considered.
Pachpatte, B.G
core   +1 more source

A Liouville type theorem for \(p\)-harmonic maps

open access: yesOsaka Journal of Mathematics, 1998
The author proves a Liouville type theorem for \(p\)-harmonic maps. Namely, considering the Riemannian manifolds \((M,g)\) and \((N,h)\), where \(M\) is complete, noncompact and has nonnegative Ricci curvature and \(N\) has nonpositive sectional curvature, a \(p\)-harmonic map \(u: M\to N\) of \(C^1_{\text{loc}}\)-class is shown to be constant if its ...
openaire   +4 more sources

Harnack inequality and Liouville-type theorems for Ornstein-Uhlenbeck and Kolmogorov operators [PDF]

open access: yes, 2020
We prove, with a purely analytic technique, a one-side Liouville theorem for a class of Ornstein-Uhlenbeck operators L0 in RN, as a consequence of a Liouville theorem at “t=−∞” for the corresponding Kolmogorov operators L0−∂t in RN+1.
Lanconelli, Ermanno   +3 more
core   +1 more source

Liouville-type theorem for higher order Hardy-Hénon type systems on the sphere [PDF]

open access: yes
In this paper, we study Liouville type theorems for the positive solutions to the following higher order Hardy-Hénon type system involving the conformal GJMS operator on the sphere Sn.
Kumar, V, Zhang, R, Ruzhansky, M
core   +1 more source

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