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Computer Simulation and Computer Algebra
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The article was published on 1988-01-01 and is currently open access. It has received 45 citations till now. The article focuses on the topics: Symbolic computation.read more
Citations
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Book ChapterDOI
Two Lectures on Fermions and Gravity
TL;DR: In this paper, the behavior of elementary particles in special relativity (SR), such as electrons, protons, or neutrons, is discussed in order to get ideas of the underlying principles of the gravitational interaction of fermions.
Journal ArticleDOI
Dynamical symmetries in topological 3D gravity with torsion
TL;DR: In this article, the authors generalized the topological massive gauge model of gravity by liberating its translational gauge degrees of freedom, and they uncovered a dynamical symmetry of the new theory by inquiring how the two Noether identities, the two Bianchi identities and the two field equations are interrelated to each other.
Journal ArticleDOI
Nonequilibrium Phase Transitions in Model Ferromagnets: A Review
TL;DR: The thermodynamic properties of ferromagnetic systems in equilibrium and far from equilibrium are well studied in this article, however, the thermodynamic behavior of the systems far from equilibria is not well studied.
Book ChapterDOI
Thermally Activated Reversal in Magnetic Nanostructures
TL;DR: In this paper, a review of numerical approaches to thermal activation in magnetic systems as far as they can be described by classical spin systems is presented. And the relation between these two methods and on the possibility to quantify the steps of a Monte Carlo procedure in terms of realistic time intervals.
Journal ArticleDOI
A small guide to variations in teleparallel gauge theories of gravity and the Kaniel-Itin model
TL;DR: In this article, a master formula for the Hodge star commutator is proposed and a detailed discussion of the Kaniel-Itin model is given. But the model belongs to the teleparallelism class of gravitational gauge theories.
References
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Journal ArticleDOI
Chiral Perturbation Theory: Expansions in the Mass of the Strange Quark
Jürg Gasser,Heinrich Leutwyler +1 more
TL;DR: In this paper, the authors construct the generating functional of U(3)×U(3), which allows them to calculate the Green functions up to and including terms of order p4 (at fixed radio m quark p 2 ) in terms of a few coupling constants which chiral symmetry leaves undetermined.
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Inertial effects of a Dirac particle.
Friedrich W. Hehl,Wei-Tou Ni +1 more
TL;DR: The effects found include the Bonse-Wroblewski phase shift due to acceleration, the Sagnac-type effect, the rotation-spin effect, and the redshift of the kinetic energy.
Journal Article
Gauge theories of the strong, weak and electromagnetic interactions
TL;DR: In this article, Lagrangian formalism and conservation laws are combined with the idea of Gauge Invariance and non-Abelian Gauge Theories, including hidden symmetry and strong interactions among quarks.
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Two-loop quantum gravity
TL;DR: In this paper, the existence of a non-renormalizable infinity in the two-loop effective action of perturbative quantum gravity by means of an explicit calculation was proved, and the background-field method in coordinate space, combined with dimensional regularization and a heat kernel representation for the propagators, was used.
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The computer calculation of Lie point symmetries of large systems of differential equations
TL;DR: In this article, a MACSYMA program is presented that greatly helps in the calculation of Lie symmetry groups of large systems of differential equations, where the program automatically produces a list of determining equations for the coefficients of the vector field.