Results 21 to 30 of about 371,645 (285)
Action principle and weak invariants
Results in Physics, 2019 A weak invariant associated with a master equation is characterized in such a way that its spectrum is not constant in time but its expectation value is conserved under time evolution generated by the master equation.
Sumiyoshi Abe, Congjie Ou
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Maximum Likelihood Identification of Dual-rate Hammerstein Systems
Nantong Daxue xuebao. Ziran kexue ban, 2021 Aiming at a kind of dual-rate Hammerstein system, based on the auxiliary model identification idea, using the maximum likelihood principle and recursive identification technology, this paper proposes a maximum likelihood recursive least squares algorithm.
LI Junhong ZHANG Jiali LU Guoping
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Quadratic forms and systems of forms in many variables [PDF]
, 2017 Let $F_1,\dotsc,F_R$ be quadratic forms with integer coefficients in $n$ variables. When $n\geq 9R$ and the variety $V(F_1,\dotsc,F_R)$ is a smooth complete intersection, we prove an asymptotic formula for the number of integer points in an expanding box
Myerson, Simon L. Rydin
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Asymptotic analysis for the generalized langevin equation [PDF]
, 2010 Various qualitative properties of solutions to the generalized Langevin equation (GLE) in a periodic or a confining potential are studied in this paper. We consider a class of quasi-Markovian GLEs, similar to the model that was introduced in \cite{EPR99}.
Ariel G +17 more
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A Rational Model for Agroecology as a Science
International Journal of Agronomy, 2020 Agroecology was born as a competing theory to sciences derived from the Green Revolution like conventional agronomy or modernized animal husbandry. In recent years, several theoretical models or approaches have been developed in order to explain this ...
Luis Fernando Gómez-Echeverri +2 more
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The Stochastic Auxiliary Problem Principle in Banach Spaces: Measurability and Convergence
SIAM Journal on Optimization, 2022 The stochastic Auxiliary Problem Principle (APP) algorithm is a general Stochastic Approximation (SA) scheme that turns the resolution of an original optimization problem into the iterative resolution of a sequence of auxiliary problems. This framework has been introduced to design decomposition-coordination schemes but also encompasses many well-known
Bittar, Thomas +3 more
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Distribution function of the Atoms of Spacetime and the Nature of Gravity
, 2015 The fact that the equations of motion for matter remain invariant when a constant is added to the Lagrangian suggests postulating that the field equations of gravity should also respect this symmetry. This principle implies that: (1) the metric cannot be
Padmanabhan, T.
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Journal of Inequalities and Applications, 2016 This paper is dedicated to the introduction a new class of equilibrium problems named generalized multivalued equilibrium-like problems which includes the classes of hemiequilibrium problems, equilibrium-like problems, equilibrium problems ...
Vahid Dadashi, Abdul Latif
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Palatini's cousin: A New Variational Principle
, 2010 A variational principle is suggested within Riemannnian geometry, in which an auxiliary metric and the Levi Civita connection are varied independently.
F. W. Hehl, Hubert Goenner
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, 2010 Recently Han and Heary proposed an approach to steady-state quantum transport through mesoscopic structures, which maps the non-equilibrium problem onto a family of auxiliary quantum impurity systems subject to imaginary voltages.
Dirks, Andreas +3 more
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