Results 51 to 60 of about 2,395,394 (337)
Symmetries of symmetries and geometrical CP violation [PDF]
Nuclear Physics B, 2015 We investigate transformations which are not symmetries of a theory but nevertheless leave invariant the set of all symmetry elements and representations. Generalizing from the example of a three Higgs doublet model with $ (27)$ symmetry, we show that the possibility of such transformations signals physical degeneracies in the parameter space of a ...
Fallbacher, Maximilian +1 more
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Abstract and Applied Analysis, 2014 We study two nonlinear partial differential equations, namely, the symmetric regularized long wave equation and the Klein-Gordon-Zakharov equations. The Lie symmetry approach along with the simplest equation and exp-function methods are used to obtain ...
Isaiah Elvis Mhlanga +1 more
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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
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Symmetries of Symmetry Breaking Constraints
, 2010 Symmetry is an important feature of many constraint programs. We show that any problem symmetry acting on a set of symmetry breaking constraints can be used to break symmetry. Different symmetries pick out different solutions in each symmetry class. This simple but powerful idea can be used in a number of different ways.
George Katsirelos, Toby Walsh
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Lie Group Classification of a Generalized Lane-Emden Type System in Two Dimensions
Journal of Applied Mathematics, 2012 The aim of this work is to perform a complete Lie symmetry classification of a generalized Lane-Emden type system in two dimensions which models many physical phenomena in biological and physical sciences.
Motlatsi Molati, Chaudry Masood Khalique
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Global Symmetries, Local Symmetries and Groupoids [PDF]
Symmetry, 2021 Local symmetries are primarily defined in the case of spacetime, but several authors have defined them outside this context, sometimes with the help of groupoids. We show that, in many cases, local symmetries can be defined as global symmetries. We also show that groups can be used, rather than groupoids, to handle local symmetries.
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Solutions and Conservation Laws of a (2+1)-Dimensional Boussinesq Equation
Abstract and Applied Analysis, 2013 We study a nonlinear evolution partial differential equation, namely, the (2+1)-dimensional Boussinesq equation. For the first time Lie symmetry method together with simplest equation method is used to find the exact solutions of the (2+1)-dimensional ...
Letlhogonolo Daddy Moleleki +1 more
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Symmetry TFT for subsystem symmetry
Journal of High Energy PhysicsAbstract We generalize the idea of symmetry topological field theory (SymTFT) for subsystem symmetry. We propose the 2-foliated BF theory with level N in (3 + 1)d as subsystem SymTFT for subsystem ℤN symmetry in (2 + 1)d. Focusing on N = 2, we investigate various topological boundaries.
Weiguang Cao, Qiang Jia
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Self-organization and symmetry breaking in intestinal organoid development
Nature, 2019 Intestinal organoids are complex three-dimensional structures that mimic the cell-type composition and tissue organization of the intestine by recapitulating the self-organizing ability of cell populations derived from a single intestinal stem cell ...
Denise Serra +11 more
semanticscholar +1 more source
Exact Solutions and Conservation Laws of a (2+1)-Dimensional Nonlinear KP-BBM Equation
Abstract and Applied Analysis, 2013 In this paper, we study the two-dimensional nonlinear Kadomtsov-Petviashivilli-Benjamin-Bona-Mahony (KP-BBM) equation. This equation is the Benjamin-Bona-Mahony equation formulated in the KP sense.
Khadijo Rashid Adem +1 more
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