Results 31 to 40 of about 2,681,911 (377)
Mathematics, 2020 In this work, we investigate a (3+1)-dimensional generalised Kadomtsev–Petviashvili equation, recently introduced in the literature. We determine its group invariant solutions by employing Lie symmetry methods and obtain elliptic, rational and ...
Innocent Simbanefayi +1 more
doaj +1 more source
Spin-Group Symmetry in Magnetic Materials with Negligible Spin-Orbit Coupling [PDF]
Physical Review X, 2021 Symmetry formulated by group theory plays an essential role with respect to the laws of nature, from fundamental particles to condensed matter systems.
Pengfei Liu +4 more
semanticscholar +1 more source
Symmetry, symmetry breaking, and pion parton distributions
, 2020 Pion valence, glue and sea distributions are calculated using a continuum approach to the two valence-body bound-state problem. Since the framework is symmetry preserving, physical features of the distributions are properly expressed.
Binosi, Daniele +5 more
core +1 more source
Modular symmetry and non-Abelian discrete flavor symmetries in string compactification [PDF]
, 2018 We study the modular symmetry in magnetized D-brane models on $T^2$. Non-Abelian flavor symmetry $D_4$ in the model with magnetic flux $M=2$ (in a certain unit) is a subgroup of the modular symmetry.
Kobayashi, Tatsuo +4 more
core +2 more sources
Symmetry–simplicity, broken symmetry–complexity
Interface Focus, 2023 Complex phenomena are made possible when: (i) fundamental physical symmetries are broken and (ii) from the set of broken symmetries historically selected ground states are applied to performing mechanical work and storing adaptive information. Over the course of several decades Philip Anderson enumerated several key principles that can follow from ...
openaire +2 more sources
Group Classification of a General Bond-Option Pricing Equation of Mathematical Finance
Abstract and Applied Analysis, 2014 We carry out group classification of a general bond-option pricing equation. We show that the equation admits a three-dimensional equivalence Lie algebra.
Tanki Motsepa +2 more
doaj +1 more source
Results in Physics, 2016 An analytical approach based on the compatibility concept is employed to solve a nonlinear reaction–diffusion model arising in mathematical biology. The solution process makes it extremely easy to obtain a relatively accurate closed-form solution of the ...
Taha Aziz +2 more
doaj +1 more source
Results in Physics, 2021 This paper studies the second extended Calogero-Bogoyavlenskii-Schiff (eCBS) equation in (2+1)–dimensions, which was proposed in the literature a short time ago.
Chaudry Masood Khalique, Anila Mehmood
doaj +1 more source
Patterns, symmetry, and symmetry breaking [PDF]
Communications of the ACM, 2008 Explaining software patterns by breaking the symmetry created by programming languages.
openaire +3 more sources
A symmetry for vanishing cosmological constant [PDF]
, 2006 Two different realizations of a symmetry principle that impose a zero cosmological constant in an extra-dimensional set-up are studied. The symmetry is identified by multiplication of the metric by minus one. In the first realization of the symmetry this
't Hooft G +9 more
core +2 more sources