Results 101 to 110 of about 1,719 (178)

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
doaj  

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

Fractional Time-Scales Noether’s Theorem for Non-Standard Birkhoffian System

Fractal and Fractional
In this work, Noether symmetries and conserved quantities of a non-standard Birkhoffian system based on the Caputo Δ Pfaff–Birkhoff principle on time scales are studied.
Zhenyu Wu, Chuanjing Song
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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 Physics
We 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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On the role of continuous symmetries in the solution of the three-dimensional Euler fluid equations and related models. [PDF]

Philos Trans A Math Phys Eng Sci, 2022
Bustamante MD.
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ABJ anomaly as a U(1) symmetry and Noether’s theorem

SciPost Physics
The 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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Symmetry-Based Representations for Artificial and Biological General Intelligence. [PDF]

Front Comput Neurosci, 2022
Higgins I, Racanière S, Rezende D.
europepmc   +1 more source

Connections Between Symmetries and Conservation Laws

Symmetry, Integrability and Geometry: Methods and Applications, 2005
This paper presents recent work on connections between symmetries and conservation laws. After reviewing Noether's theorem and its limitations, we present the Direct Construction Method to show how to find directly the conservation laws for any given ...
George Bluman
doaj  

General Relativity, Mental Causation, and Energy Conservation. [PDF]

Erkenntnis, 2022
Pitts JB.
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