Results 51 to 60 of about 8,396,712 (346)
A maximum principle at infinity with applications to geometric vector fields
Journal of Mathematical Analysis and Applications, 2019 We derive a new form of maximum principle, applicable to a vector field with nonnegative divergence in a connected, oriented, complete noncompact Riemannian manifold. We then use it to obtain some applications to Killing vector fields. More precisely, we
Luis J. Alías +2 more
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Application of maximum principle optimizing active current subharmonic filter [PDF]
Омский научный вестник, 2019 In this article, the structure and parameters of an optimal regulator for active filter current subharmonics (AFSC) are received based on the optimal control method L. S. Pontryagin.
V. N. Anosov +2 more
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Maximum principle for higher order operators in general domains
Advances in Nonlinear Analysis, 2021 We first prove De Giorgi type level estimates for functions in W1,t(Ω), Ω⊂RN$ \Omega\subset{\mathbb R}^N $, with t>N≥2$ t \gt N\geq 2 $. This augmented integrability enables us to establish a new Harnack type inequality for functions which do not ...
Cassani Daniele, Tarsia Antonio
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Maximum principle and numerical method for the multi-term time–space Riesz–Caputo fractional differential equations [PDF]
, 2014 The maximum principle for the space and time–space fractional partial differential equations is still an open problem. In this paper, we consider a multi-term time–space Riesz–Caputo fractional differential equations over an open bounded domain.
Turner, I., Ye, H., Liu, F., Anh, V.
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On the maximum principle for a time-fractional diffusion equation [PDF]
, 2017 In this paper, we discuss the maximum principle for a time-fractional diffusion equation ∂tαu(x,t)=∑i,j=1n∂i(aij(x)∂ju(x,t))+c(x)u(x,t)+F(x,t),t>0,x∈Ω⊂Rn,$$\begin{array}{} \displaystyle \partial_t^{\alpha} u(x,t) = \sum\limits_{i,j=1}^n \partial_i(a_{ij}(
Yuri Luchko, Masahiro Yamamoto
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The Maximum Principle of Pontryagin in Control of Twolegged Robot Based on Human Walking System [PDF]
, 2014 In the paper a hypothesis about state equations of human gait is presented. Instantaneous normalized power developed by human muscles at particular joints of a leg is a control vector in state equations of the human walking system.
K.K. Żur, Żur, K. K.
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Embryonal tumors comprise the majority of malignant central nervous system (CNS) neoplasms diagnosed in children under 3 years of age. Compared with their counterparts in older children, these tumors exhibit distinct molecular biology and a more aggressive clinical phenotype, while their management is complicated by the heightened ...
Sudarshawn Damodharan +3 more
wiley +1 more source
Relaxation Processes and the Maximum Entropy Production Principle
Entropy, 2010 Spontaneous transitions of an isolated system from one macroscopic state to another (relaxation processes) are accompanied by a change of entropy. Following Jaynes’ MaxEnt formalism, it is shown that practically all the possible microscopic developments ...
Davor Juretić +3 more
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Maximum Entropy Principle in Deep Thermalization and in Hilbert-Space Ergodicity [PDF]
Physical Review XWe report universal statistical properties displayed by ensembles of pure states that naturally emerge in quantum many-body systems. Specifically, two classes of state ensembles are considered: those formed by (i) the temporal trajectory of a quantum ...
D. Mark +7 more
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The maximum principle and biharmonic functions [PDF]
, 1961 This note concerns the maximum principle which applies to solutions of partial differential equations of elliptic type. This principle asserts that the maximum of a solution occurs on the boundary of a region.
Duffin, R.J
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