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Charged Shear-Free Fluids and Complexity in First Integrals [PDF]

open access: yesEntropy, 2022
The equation yxx=f(x)y2+g(x)y3 is the charged generalization of the Emden-Fowler equation that is crucial in the study of spherically symmetric shear-free spacetimes.
Sfundo C. Gumede   +2 more
doaj   +2 more sources

Geometric properties of almost pure metric plastic pseudo-Riemannian manifolds [PDF]

open access: yesHeliyon
This paper investigates the geometric and structural properties of almost plastic pseudo-Riemannian manifolds, with a specific focus on three-dimensional cases.
Cagri Karaman   +3 more
doaj   +2 more sources

Dispersive dromions, conserved densities and fluxes with integrability via P-test for couple of nonlinear dynamical system

open access: yesResults in Physics, 2022
The famous Hamiltonian amplitude equation (HAE) and the well known cubic nonlinear Schrödinger equation (CNLSE) with repulsive delta potential have been taken into account for integrability analysis, establishment of conservation laws (CLs) and traveling
Azhar Bashir   +4 more
doaj   +1 more source

One-loop inelastic amplitudes from tree-level elasticity in 2d

open access: yesJournal of High Energy Physics, 2023
We investigate the perturbative integrability of different quantum field theories in 1+1 dimensions at one loop. Starting from massive bosonic Lagrangians with polynomial-like potentials and absence of inelastic processes at the tree level, we derive a ...
Davide Polvara
doaj   +1 more source

Geometry, integrability and bifurcation diagrams of a family of quadratic differential systems as application of the Darboux theory of integrability

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
During the last forty years the theory of integrability of Darboux, in terms of algebraic invariant curves of polynomial systems has been very much extended and it is now an active area of research.
Regilene Oliveira   +3 more
doaj   +1 more source

Strongly formal Weierstrass non-integrability for polynomial differential systems in $\mathbb{C}^2$

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2020
Recently it has been given a criterion for determining the weakly formal Weierstrass non-integrability of polynomial differential systems in $\mathbb{C}^2$.
Jaume Giné, Jaume Llibre
doaj   +1 more source

Modified Macdonald Polynomials and Integrability [PDF]

open access: yesCommunications in Mathematical Physics, 2020
References corrected, explanations and examples ...
Alexandr Garbali, Michael Wheeler
openaire   +2 more sources

Soliton solutions, Painleve analysis and conservation laws for a nonlinear evolution equation

open access: yesResults in Physics, 2021
In this paper, we investigate a reputed nonlinear partial differential equation (NLPDE) known as geophysical Korteweg-de Vries (GPKdV) equation. We implement a renowned Unified method (UM) of nonlinear (NL) sciences for the extraction of polynomial and ...
S.T.R. Rizvi   +5 more
doaj   +1 more source

Iterated Integrals of Jacobi Polynomials [PDF]

open access: yesBulletin of the Malaysian Mathematical Sciences Society, 2019
Let P(α,β)n be the n-th monic Jacobi polynomial with α,β>−1. Given m numbers ω1,…,ωm∈C∖[−1,1], let Ωm=(ω1,…,ωm) and P(α,β)n,m,Ωm be the m-th iterated integral of (n+m)!n!P(α,β)n normalized by the conditions dkP(α,β)n,m,Ωmdzk(ωm−k)=0, for k=0,1,…,m−1. The main purpose of the paper is to study the algebraic and asymptotic properties of the sequence of ...
Hector Pijeira-Cabrera   +1 more
openaire   +2 more sources

Some analytic and series solutions of integrable generalized Broer-Kaup system

open access: yesAlexandria Engineering Journal, 2022
In this article, we have updated the results obtained by Zhang et al. (2019) and derived some certain features of a famous dispersion water wave model, namely, generalized Broer-Kaup (BK) system. First, we have shown the integrability of the model. Then,
Sandeep Malik   +3 more
doaj   +1 more source

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