Results 61 to 70 of about 296 (136)
Exact solutions of equal-width equation and its conservation laws
Open Physics, 2019 In this work we investigate the equal-width equation, which is used for simulation of (1-D) wave propagation in non-linear medium with dispersion process.
Khalique Chaudry Masood +2 more
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Equivariance, Variational Principles, and the Feynman Integral
Symmetry, Integrability and Geometry: Methods and Applications, 2008 We argue that the variational calculus leading to Euler's equations and Noether's theorem can be replaced by equivariance and invariance conditions avoiding the action integral.
George Svetlichny
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Birkhoff's Theorem from a geometric perspective: A simple example [PDF]
Categories and General Algebraic Structures with Applications, 2016 From Hilbert's theorem of zeroes, and from Noether's ideal theory, Birkhoff derived certain algebraic concepts (as explained by Tholen) that have a dual significance in general toposes, similar to their role in the original examples of algebraic ...
F. William Lawvere
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Emmy Noether and Linear Evolution Equations
Acta Polytechnica, 2013 Noether’s Theorem relates the Action Integral of a Lagrangian with symmetries which leave it invariant and the first integrals consequent upon the variational principle and the existence of the symmetries. These each have an equivalent in the Schrödinger
P. G. L. Leach
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ABJ anomaly as a U(1) symmetry and Noether’s theorem
SciPost PhysicsThe Adler-Bell-Jackiw anomaly determines the violation of chiral symmetry when massless fermions are coupled to an abelian gauge field. In its seminal paper, Adler noticed that a modified chiral $U(1)$ symmetry could still be defined, at the expense of ...
Valentin Benedetti, Horacio Casini, Javier M. Magan
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Covariant Canonical Method for Yang-Mills Theory Expressed as a Constrained BF-Like Theory
Advances in Mathematical Physics, 2012 The covariant canonical analysis for Yang-Mills theory expressed as a BF-like action is performed. We study a BF-like action, that in spite of being the coupling of two topological terms, yield, on shell to Yang-Mills action.
Alberto Escalante, Irving García
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Noether’s theorem and Ward-Takahashi identities from homotopy algebras
Journal of High Energy PhysicsWe derive the new identity in homotopy algebras which directly corresponds to the Schwinger-Dyson equations in quantum field theory. As an application, we derive the Ward-Takahashi identities.
Keisuke Konosu, Jojiro Totsuka-Yoshinaka
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Miracles persist: a reply to Sus. [PDF]
Eur J Philos Sci, 2022 Linnemann N, Read J.
europepmc +1 more source
Nearly Periodic Maps and Geometric Integration of Noncanonical Hamiltonian Systems. [PDF]
J Nonlinear Sci, 2023 Burby JW, Hirvijoki E, Leok M.
europepmc +1 more source
On controlled Hamilton and Hamilton-Jacobi differential equations of higher-order. [PDF]
Sci Rep, 2022 Treanţă S, Nonlaopon K, Khan MB.
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