Results 31 to 40 of about 5,329,290 (309)

Maximum entropy production principle in forest dynamics modelling [PDF]

open access: yesBIO Web of Conferences
Forest ecosystems are vivid representatives of open non-equilibrium systems. The existence of extreme principles in “ecological thermodynamics” is a subject of discussion in the works of many physicists, ecologists and researchers dealing with non ...
Lisitsyn Viktor   +3 more
doaj   +1 more source

On the strong maximum principle for nonlocal operators [PDF]

open access: yesMathematische Zeitschrift, 2017
In this paper we derive a strong maximum principle for weak supersolutions of nonlocal equations of the form $$\begin{aligned} Iu=c(x) u \qquad \text { in }\,\Omega , \end{aligned}$$Iu=c(x)uinΩ,where $$\Omega \subset \mathbb {R}^N$$Ω⊂RN is a domain, $$c ...
Sven Jarohs, T. Weth
semanticscholar   +1 more source

The strong maximum principle revisited

open access: yesJournal of Differential Equations, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
PUCCI, Patrizia, J. SERRIN
openaire   +1 more source

Some Inequalities for the Omori-Yau Maximum Principle

open access: yesAbstract and Applied Analysis, 2015
We generalize A. Borbély’s condition for the conclusion of the Omori-Yau maximum principle for the Laplace operator on a complete Riemannian manifold to a second-order linear semielliptic operator L with bounded coefficients and no zeroth order term ...
Kyusik Hong
doaj   +1 more source

Lagrangian submanifolds generated by the Maximum Entropy principle

open access: yesEntropy, 2005
We show that the Maximum Entropy principle (E.T. Jaynes, [8]) has a natural description in terms of Morse Families of a Lagrangian submanifold. This geometric approach becomes useful when dealing with the M.E.P. with nonlinear constraints.
Marco Favretti
doaj   +1 more source

Application of maximum principle optimizing active current subharmonic filter [PDF]

open access: yesОмский 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
doaj   +1 more source

A maximum principle at infinity with applications to geometric vector fields

open access: yesJournal 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
L. Alías, A. Caminha, F. do Nascimento
semanticscholar   +1 more source

Maximum principle for higher order operators in general domains

open access: yesAdvances 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
doaj   +1 more source

On the maximum principle for a time-fractional diffusion equation [PDF]

open access: yes, 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
semanticscholar   +1 more source

Rational Use of Herbal Products in Pediatric Patients Treated With Anticancer Drugs in the European Union

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction The use of herbal medical preparation (HMP) is rising among pediatric oncology patients, often to manage treatment‐related symptoms. Their effectiveness remains uncertain, and the risk of herb–drug interactions is underestimated.
Orianne Mahot   +6 more
wiley   +1 more source

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