Results 61 to 70 of about 304,795 (244)
Mathematics in Engineering, 2023 We consider nonlinear Kolmogorov-Fokker-Planck type equations of the form $ \begin{equation*} (\partial_t+X\cdot\nabla_Y)u = \nabla_X\cdot(A(\nabla_X u, X, Y, t)).
Prashanta Garain, Kaj Nyström
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Regular and semi-regular polytopes. II
Mathematische Zeitschrift, 1940 [For part I see the review above.] The first section summarizes Part I, giving particular attention to the 3-dimensional point groups. The second section establishes subgroup relationships among the various irreducible reflection groups in 4 dimensions: 5 finite and 5 infinite.
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Optimal gradient estimates for multi-phase integrals
Mathematics in Engineering, 2022 We prove sharp reverse Hölder inequalities for minima of multi-phase variational integrals and apply them to Calderón-Zygmund estimates for nonhomogeneous problems.
Cristiana De Filippis
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Regularity lemma for distal structures [PDF]
Journal of the European Mathematical Society (Print), 2015 It is known that families of graphs with a semialgebraic edge relation of bounded complexity satisfy much stronger regularity properties than arbitrary graphs, and that they can be decomposed into very homogeneous semialgebraic pieces up to a small error
A. Chernikov, S. Starchenko
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Regularity of eigenstates in regular Mourre theory
Journal of Functional Analysis, 2011 The present paper gives an abstract method to prove that possibly embedded eigenstates of a self-adjoint operator $H$ lie in the domain of the $k^{th}$ power of a conjugate operator $A$. Conjugate means here that $H$ and $A$ have a positive commutator locally near the relevant eigenvalue in the sense of Mourre.
Møller, Jacob Schach +1 more
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Quantifying Non-Stationarity with Information Theory
Entropy, 2021 We introduce an index based on information theory to quantify the stationarity of a stochastic process. The index compares on the one hand the information contained in the increment at the time scale τ of the process at time t with, on the other hand ...
Carlos Granero-Belinchón +2 more
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Regular Operator Equations: Conditions for Regularity [PDF]
Proceedings of the American Mathematical Society, 1982 Regular operator equations are causal equations admitting unique solutions and have the property that all of their limiting equations along solutions admit unique solutions. Sufficient conditions which guarantee that an operator equation x = T x x = Tx is regular are given in case T T is
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PLoS ONE, 2016 To discover regularities in human mobility is of fundamental importance to our understanding of urban dynamics, and essential to city and transport planning, urban management and policymaking.
Chen Zhong +6 more
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Regularity of Stochastic Kinetic Equations [PDF]
, 2016 We consider regularity properties of stochastic kinetic equations with multiplicative noise and drift term which belongs to a space of mixed regularity ($L^p$-regularity in the velocity-variable and Sobolev regularity in the space-variable).
E. Fedrizzi +3 more
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A-Stable Time Discretizations Preserve Maximal Parabolic Regularity [PDF]
SIAM Journal on Numerical Analysis, 2015 It is shown that for a parabolic problem with maximal $L^p$-regularity (for ...
Balázs Kovács, Buyang Li, C. Lubich
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