Results 11 to 20 of about 4,215,458 (307)
Proceedings of the American Mathematical Society, 1976 A general comparison theorem is extracted from the proof of a recent comparison theorem of Leighton and Oo Kian Ke. The result is applied to a comparison theorem for focal points.
H. Guggenheimer
openaire +2 more sources
The Hellmann–Feynman theorem, the comparison theorem, and the envelope theory
Results in Physics, 2015 The envelope theory is a convenient method to compute approximate solutions for bound state equations in quantum mechanics. It is shown that these approximate solutions obey a kind of Hellmann–Feynman theorem, and that the comparison theorem can be ...
Claude Semay
doaj +3 more sources
Comparison theorem of one-dimensional stochastic hybrid delay systems [PDF]
, 2008 The comparison theorem of stochastic differential equations has been investigated by many authors. However, little research is available on the comparison theorem of stochastic hybrid systems, which is the topic of this paper.
Yuan, Chenggui, Mao, Xuerong, Yang, Zhe
core +4 more sources
Local estimates for functionals rotationally invariant with respect to the gradient [PDF]
E-Journal of Analysis and Applied Mathematics, 2022 This paper concerns minimization problems from Calculus of Variations rotationally invariant with respect to the gradient. Inspired by properties associated with results which are valid for elliptic partial differential equations, it presents some local ...
Telma João Santos
doaj +1 more source
The adapted solution and comparison theorem for backward stochastic differential equations with Poisson jumps and applications [PDF]
, 2008 This paper deals with a class of backward stochastic differential equations with Poisson jumps and with random terminal times. We prove the existence and uniqueness result of adapted solution for such a BSDE under the assumption of non-Lipschitzian ...
Mao, Xuerong +2 more
core +4 more sources
Cohomological comparison theorem [PDF]
Journal of Pure and Applied Algebra, 2015 If $f$ is an idempotent in a ring $Λ$, then we find sufficient \linebreak conditions which imply that the cohomology rings $\oplus_{n\ge 0}Ext^n_Λ(Λ/{\br},Λ/{\br})$ and \linebreak $\oplus_{n\ge 0}Ext^n_{fΛf}(fΛf/f{\br} f,fΛf/f{\br} f)$ are eventually isomorphic. This result allows us to compare finite generation and GK dimension of the cohomology rings
Green, Edward L. +2 more
openaire +3 more sources
Mathematics, 2021 The paper is devoted to a nonstationary initial–boundary value problem governing complex heat exchange in a convex semitransparent body containing several absolutely black inclusions.
Andrey Amosov
doaj +1 more source
Computation, 2021 The energy eigenvalues of the ground state helium atom and lowest two excited states corresponding to the configurations 1s2s embedded in the plasma environment using Hulthén, Debye–Hückel and exponential cosine screened Coulomb model potentials are ...
Salah B. Doma +2 more
doaj +1 more source
Proceedings of the American Mathematical Society, 1971 In this paper the authors consider a pair of differential equations y 1
Leighton, Walter, Kian Ke, William Oo
openaire +2 more sources
Comparison Theorems on Weighted Finsler Manifolds and Spacetimes with ϵ-Range
Analysis and Geometry in Metric Spaces, 2022 We establish the Bonnet–Myers theorem, Laplacian comparison theorem, and Bishop–Gromov volume comparison theorem for weighted Finsler manifolds as well as weighted Finsler spacetimes, of weighted Ricci curvature bounded below by using the weight function.
Lu Yufeng +2 more
doaj +1 more source