Results 241 to 250 of about 166,135,342 (278)
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On the Geometry of Variational Principles of Physics
Russian Physics Journal, 2003zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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On dual-complementary variational principles in mathematical physics
International Journal of Engineering Science, 1974A general theory of complementary-dual variational principles is developed for a wide class of linear boundary value problems in mathematical physics. In particular, the class of problems considered is described by equations of the form \(T^*ETu+ f= 0\), where \(T\) is a linear operator from a Hilbert space \(\mathcal U\) into \(\mathcal G\), \((T ...
Oden, J. T., Reddy, J. N.
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Variational principle for dissipative processes in continuum physics
International Journal of Engineering Science, 2000zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kotowski, Romuald, Radzikowska, Eugenia
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The Journal of Physical Chemistry Letters, 2023
In this letter, we propose a functional on the basis of the Schwinger variational principle that accounts for the particle rearrangement by solving a projected Lippmann-Schwinger equation system. The method is tested in the static-coupled approximation for positron-H, where excellent agreements with benchmark results are found for the elastic ...
Eliton Popovicz Seidel, Felipe Arretche
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In this letter, we propose a functional on the basis of the Schwinger variational principle that accounts for the particle rearrangement by solving a projected Lippmann-Schwinger equation system. The method is tested in the static-coupled approximation for positron-H, where excellent agreements with benchmark results are found for the elastic ...
Eliton Popovicz Seidel, Felipe Arretche
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A New Variational Principle for the Fundamental Equations of Classical Physics
Foundations of Physics, 1998In this paper we introduce a variational principle from which the fundamental equations of classical physics can be deduced. This principle permits a sort of unification of the gravitational and the electromagnetic fields. The basic point of this variational principle is that the world-line of a material point is parametrized by a parameter a which ...
BENCI V., FORTUNATO, Donato
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Physical variational principle in dissipative media
Acta Mechanica, 2015zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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A note on a variational principle for crystal physics
Computational Mechanics, 1987A variational principle for coupled piezoelectric heat conduction is derived. The bilinear convolution due to Gurtin is used to formulate a general variational function. An extended function is presented that is suitable for finite element analysis.
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The use of the variational principle in nuclear physics
Nuclear Physics A, 1972Abstract The most general form of the variational principle, which treats all of the observables of a system on an equal basis, is formulated. The Hartree-Fock equations and the “projected” variational equations are shown to be special cases of the general formulation.
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Variational Representations in Reactor Physics Derived from a Physical Principle
Nuclear Science and Engineering, 1960A physical axiom is advanced that relates the density of neutrons and their individual contribution to the operationally determinable behavior of a reactor. The variational principle derived from this axiom is of a general form applicable to systems in which the time dependency of the coefficients of the equations prevents a separation into ...
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Variational Principles in Mathematical Physics, Geometry, and Economics
2010This comprehensive introduction to the calculus of variations and its main principles also presents their real-life applications in various contexts: mathematical physics, differential geometry, and optimization in economics. Based on the authors' original work, it provides an overview of the field, with examples and exercises suitable for graduate ...
Alexandru Kristály +2 more
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