Search Results - "CONSERVED quantity"

Symmetry analysis and conserved quantities for Lemaitre–Tolman–Bondi spacetimes under f(R) gravity.

Authors: Khan, Nazar Muhammad Ashraf, Asifa Ramzan, Muhammad et al.

Source: International Journal of Geometric Methods in Modern Physics. Nov2025, p1. 17p.

Subject Terms: *CONSERVED quantity, *SYMMETRY, *SPACETIME, *CONSERVATION laws (Physics), *GRAVITATIONAL collapse, *EXPANDING universe

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

Authors: Wu, Zhenyu Song, Chuanjing

Source: Fractal & Fractional. Aug2025, Vol. 9 Issue 8, p489. 18p.

Subject Terms: *NOETHER'S theorem, *CONSERVED quantity, *SYMMETRIES (Quantum mechanics), *DYNAMICAL systems, *VARIATIONAL principles, *EQUATIONS of motion

Kepler dynamics on a α-deformed Poisson manifold: Recursion operators and master symmetries.

Authors: Landalidji, Mahougnon Justin Hounkonnou, Mahouton Norbert

Source: International Journal of Geometric Methods in Modern Physics. May2025, p1. 25p.

Subject Terms: *CONSERVED quantity, *SYMMETRY groups, *HAMILTONIAN operator, *HAMILTON'S principle function, *NEWTON'S laws of motion, *KEPLER'S laws, *OPERATOR equations, *SYMPLECTIC manifolds

People: NEWTON, Isaac, 1642-1727, KEPLER, Johannes, 1571-1630

Stability of peakons for a multi-component Novikov system.

Authors: Li, Zhigang¹ (AUTHOR) lzgcumtb@163.com

Source: Applicable Analysis. May2025, Vol. 104 Issue 9, p1661-1671. 11p.

Subject Terms: *CONSERVED quantity, *EQUATIONS, *LAX pair, *CONSERVATION laws (Mathematics)

A super extension of the Geng–Xue system.

Authors: Li, Hongmin Li, Nianhua

Source: Journal of Mathematical Physics. May2025, Vol. 66 Issue 5, p1-11. 11p.

Subject Terms: *CONSERVED quantity

Numerical solutions of the EW and MEW equations using a fourth-order improvised B-spline collocation method.

Authors: Fan, Guangyu Wu, Beibei

Source: Numerical Algorithms. Apr2025, Vol. 98 Issue 4, p1799-1825. 27p.

Subject Terms: *CONSERVED quantity, *FOURIER series, *FOURIER analysis, *THEORY of wave motion, *QUASILINEARIZATION, *COLLOCATION methods

VARIATIONAL PRINCIPLE AND PERIODIC WAVE SOLUTIONALS FOR ELASTIC ROD EQUATION WITH FRACTAL DERIVATIVE.

Authors: Yi TIAN¹ ttxsun@163.com

Source: Thermal Science. 2025, Vol. 29 Issue 3B, p1871-1881. 11p.

Subject Terms: *VARIATIONAL principles, *CONSERVED quantity, *ELASTIC waves, *NONLINEAR waves, *EQUATIONS

Conserved quantities for Birkhoffian and Hamiltonian mechanics.

Authors: Song, Chuan-Jing Zhang, Yi

Source: Journal of Mathematical Physics. Apr2025, Vol. 66 Issue 4, p1-21. 21p.

Subject Terms: *TIME-scale calculus, *CONSERVED quantity, *HAMILTONIAN mechanics, *NONHOLONOMIC dynamical systems, *NOETHER'S theorem

Geometric conservation in curved spacetime and entropy.

Authors: Aoki, Sinya Hidaka, Yoshimasa Kawana, Kiyoharu et al.

Source: European Physical Journal C -- Particles & Fields. Apr2025, Vol. 85 Issue 4, p1-8. 8p.

Subject Terms: *CURVED spacetime, *CONSERVED quantity, *ENTROPY, *FLUIDS, *DEFINITIONS

Guiding-centre Lagrangian and quasi-symmetry.

Source: Journal of Plasma Physics. Apr2025, Vol. 91 Issue 2, p1-14. 14p.

Subject Terms: *PLASMA confinement, *CONSERVED quantity, *MAGNETIC fields

Divergence-free finite volume WENO scheme for relativistic magnetohydrodynamics preserving positivity and subluminal velocity.

Authors: Ding, Shengrong Wu, Kailiang Yuan, Caiyou

Source: Monthly Notices of the Royal Astronomical Society. Apr2025, Vol. 538 Issue 2, p1167-1190. 24p.

Subject Terms: *CONSERVED quantity, *POLYNOMIAL approximation, *SHOCK waves, *COMPLEX variables, *EQUATIONS of state, *QUASILINEARIZATION

An integrable pseudospherical equation with pseudo-peakon solutions.

Authors: da Silva, Priscila Leal Freire, Igor Leite Sales Filho, Nazime

Source: Journal of Differential Equations. Feb2025, Vol. 419, p291-323. 33p.

Subject Terms: *CONSERVED quantity, *GAUSSIAN curvature, *DIFFEOMORPHISMS, *EQUATIONS, *COLLAGE

Numerical simulation of a fractional Davey–Stewartson model via a conservative scheme: preservation of mass, energy and momenta.

Authors: Macías, Siegfried Macías-Díaz, Jorge E.

Source: International Journal of Computer Mathematics. Feb2025, Vol. 102 Issue 2, p335-363. 29p.

Subject Terms: *PARTIAL differential equations, *CONSERVED quantity, *FLUID dynamics, *NONLINEAR systems, *MATHEMATICAL models

Turbulent magnetic decay controlled by two conserved quantities.

Source: Journal of Plasma Physics. Feb2025, Vol. 91 Issue 1, p1-19. 19p.

Subject Terms: *CONSERVED quantity, *PLASMA astrophysics, *MAGNETIC control, *MAGNETIC fields, *ENERGY density

On the Cauchy problem for a combined mCH-Novikov integrable equation with linear dispersion.

Authors: Wan, Zhenyu Wang, Ying Zhu, Min

Source: Journal of Differential Equations. Jan2025:Part 1, Vol. 416, p727-767. 41p.

Subject Terms: *CONSERVED quantity, *BESOV spaces, *CAUCHY problem, *LINEAR equations, *GENERALIZED spaces

Deciphering complexity: machine learning insights into the chaos.

Authors: Osmanov, Lazare¹ (AUTHOR) lazare.osmanov1521r@gmail.com

Source: European Physical Journal B: Condensed Matter. Jan2025, Vol. 98 Issue 1, p1-10. 10p.

Subject Terms: *CONSERVED quantity, *DYNAMICAL systems, *PHASE transitions, *INTEGERS, *LYAPUNOV exponents

Noether symmetry of multi-delay Birkhoffian system and its conserved quantity.

Authors: Du, Xin-Yu Zhai, Xiang-Hua

Source: AIP Advances. Jan2025, Vol. 15 Issue 1, p1-18. 18p.

Subject Terms: *ANALYTICAL mechanics, *CONSERVED quantity, *HAMILTONIAN systems, *EQUATIONS of motion, *DIFFERENTIAL equations

The Integral Manifolds of the 4 Body Problem with Equal Masses: Bifurcations at Relative Equilibria.

Authors: McCord, Christopher K.

Source: Journal of Dynamics & Differential Equations; Dec2025, Vol. 37 Issue 4, p2653-2695, 43p

Subject Terms: BIFURCATION theory, HOMOLOGY theory, PHASE space, MANY-body problem, CONSERVED quantity, ANGULAR momentum (Mechanics), LAGRANGIAN points

Stark effect in the Yang–Coulomb problem.

Authors: Mardoyan, L. G.

Source: Theoretical & Mathematical Physics; Nov2025, Vol. 225 Issue 2, p1997-2006, 10p

Subject Terms: STARK effect, ELECTRIC fields, QUANTUM numbers, ENERGY levels (Quantum mechanics), QUANTUM mechanics, CONSERVED quantity

Neother's theorem on quantum hydrodynamics.

Authors: Wijaya, Andika Kusuma Ariwahjoedi, Seramika Rosyid, Muhammad Farchani

Source: International Journal of Modern Physics A: Particles & Fields; Gravitation; Cosmology; Nuclear Physics; 10/10/2025, Vol. 40 Issue 28, p1-18, 18p

Subject Terms: NOETHER'S theorem, SYMPLECTIC geometry, QUANTUM fluids, SYMMETRY, CONSERVED quantity