Results 11 to 20 of about 727,614 (177)
Relativistic comparison theorems [PDF]
Physical Review A, 2010 6 ...
A. Messiah, Richard L. Hall, W. Greiner
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Comparison Theorems for Gibbs Measures [PDF]
Journal of Statistical Physics, 2014 The Dobrushin comparison theorem is a powerful tool to bound the difference between the marginals of high-dimensional probability distributions in terms of their local specifications. Originally introduced to prove uniqueness and decay of correlations of Gibbs measures, it has been widely used in statistical mechanics as well as in the analysis of ...
Rebeschini, Patrick, van Handel, Ramon
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On a comparison theorem for parabolic equations with nonlinear boundary conditions
Advances in Nonlinear Analysis, 2022 In this article, a new type of comparison theorem for some second-order nonlinear parabolic systems with nonlinear boundary conditions is given, which can cover classical linear boundary conditions, such as the homogeneous Dirichlet or Neumann boundary ...
Kita Kosuke, Ôtani Mitsuharu
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On Leighton's comparison theorem
Journal of Differential Equations, 2017 We give a simple proof of a fairly flexible comparison theorem for equations of the type $-(p(u'+su))'+rp(u'+su)+qu=0$ on a finite interval where $1/p$, $r$, $s$, and $q$ are real and integrable. Flexibility is provided by two functions which may be chosen freely (within limits) according to the situation at hand.
Ghatasheh, Ahmed, Weikard, Rudi
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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
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An isoperimetric comparison theorem
Inventiones Mathematicae, 1992 The author discusses the isoperimetric inequality for a complete, simply connected, 3-dimensional Riemannian manifold \(M\) with sectional curvature \(K_ M\leq k\leq 0\). If \(E\subset M\) is a compact domain with smooth boundary \(\partial E\) and \(B\) is the geodesic ball in the 3-dimensional model space of constant curvature \(k\) with the same ...
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Cohomological comparison theorem [PDF]
Journal of Pure and Applied Algebra, 2015 If $f$ is an idempotent in a ring $ $, then we find sufficient \linebreak conditions which imply that the cohomology rings $\oplus_{n\ge 0}Ext^n_ ( /{\br}, /{\br})$ and \linebreak $\oplus_{n\ge 0}Ext^n_{f f}(f f/f{\br} f,f f/f{\br} f)$ are eventually isomorphic.
Green, Edward L. +2 more
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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
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Proceedings of the American Mathematical Society, 1971 In this paper the authors consider a pair of differential equations y 1 + p 1 ( x ) y 1 = 0 , y 2
Leighton, Walter, Kian Ke, William Oo
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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
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