Results 51 to 60 of about 336,880 (200)

The equivalence principle is NOT a Noether symmetry

European Physical Journal C: Particles and Fields
The connection between the equivalence principle and Noether’s theorem was discussed in Capozziello and Ferrara (Int J Geom Methods Mod Phys 21:2440014, 2024).
Andronikos Paliathanasis
doaj   +1 more source

Gauge invariant Noether’s theorem and the proton spin crisis

Journal of High Energy Physics, 2018
Due to proton spin crisis it is necessary to understand the gauge invariant definition of the spin and orbital angular momentum of the quark and gluon from first principle.
Gouranga C. Nayak
doaj   +1 more source

The Lie derivative and Noether's theorem on the aromatic bicomplex for the study of volume-preserving numerical integrators [PDF]

, 2023
The aromatic bicomplex is an algebraic tool based on aromatic Butcher trees and used in particular for the explicit description of volume-preserving affine-equivariant numerical integrators.
Laurent, Adrien
core   +1 more source

Information‐Theoretic Approach to Financial Market Modeling

Mathematical Finance, EarlyView.
ABSTRACT The paper treats the financial market as a communication system, using four information‐theoretic assumptions to derive an idealized model with only one parameter. State variables are scalar stationary diffusions. The model maximizes the surprisal of the market and minimizes the Kullback–Leibler divergence between the benchmark‐neutral pricing
Eckhard Platen
wiley   +1 more source

Conserved momenta of ferromagnetic solitons through the prism of differential geometry

SciPost Physics, 2021
The relation between symmetries and conservation laws for solitons in a ferromagnet is complicated by the presence of gyroscopic (precessional) forces, whose description in the Lagrangian framework involves a background gauge field.
Xingjian Di, Oleg Tchernyshyov
doaj   +1 more source

Noether's 1st theorem with local symmetries [PDF]

, 2022
Noether's 2nd theorem applied to a total system states that a global symmetry which is a part of local symmetries does not provide a physically meaningful conserved charge but it instead leads to off-shell constraints as a form of conserved currents.
Aoki, Sinya
core   +1 more source

On computing local monodromy and the numerical local irreducible decomposition

Transactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.
Abstract Similarly to the global case, the local structure of a holomorphic subvariety at a given point is described by its local irreducible decomposition. Geometrically, the key requirement for obtaining a local irreducible decomposition is to compute the local monodromy action of a generic linear projection at the given point, which is always well ...
Parker B. Edwards, Jonathan D. Hauenstein   +1 more
wiley   +1 more source

Noether's theorem on time scales

Journal of Mathematical Analysis and Applications, 2008
We show that for any variational symmetry of the problem of the calculus of variations on time scales there exists a conserved quantity along the respective Euler-Lagrange extremals.
Bartosiewicz, Z., Torres, D.F.M.
openaire   +4 more sources

Emmy Noether and Her Theorems

Annalen der Physik, 2023
AbstractToday Noether's principal theorem occupies a prominent place in theoretical physics, though for a long time its significance was largely overlooked. Even now, relatively few physicists realize that Emmy Noether's original paper from 1918 contains two fundamental theorems.
openaire   +3 more sources

Comment on "Noether's-type theorems on time scales" [J. Math. Phys. 61, 113502 (2020)] [PDF]

, 2022
We comment on the validity of Noether's theorem and on the conclusions of [J. Math. Phys. 61 (2020), no. 11, 113502].Comment: This is a preprint of a paper whose final and definite form is published in the 'Journal of Mathematical Physics'.
Torres, Delfim F. M., Delfim F. M. Torres   +1 more
core   +1 more source