scholarly journals Approximate symmetries of guiding-centre motion

2021 ◽  
Author(s):  
Joshua W Burby ◽  
Nikolaos Kallinikos ◽  
Robert S MacKay
Keyword(s):  
Approximate Symmetries

scholarly journals Multi-Critical Multi-Field Models: A CFT Approach to the Leading Order

Universe ◽  
2019 ◽  
Vol 5 (6) ◽  
pp. 151 ◽  
Author(s):  
Gian Paolo Vacca ◽  
Alessandro Codello ◽  
Mahmoud Safari ◽  
Omar Zanusso
Keyword(s):  
Field Theory ◽  
Renormalization Group ◽  
Conformal Field Theory ◽  
Leading Order ◽  
Full Agreement ◽  
Approximate Symmetries ◽  
Conformal Field ◽  
Perturbative Renormalization

We present some general results for the multi-critical multi-field models in d > 2 recently obtained using conformal field theory (CFT) and Schwinger–Dyson methods at the perturbative level without assuming any symmetry. Results in the leading non trivial order are derived consistently for several conformal data in full agreement with functional perturbative renormalization group (RG) methods. Mechanisms like emergent (possibly approximate) symmetries can be naturally investigated in this framework.

scholarly journals Approximate symmetries of planar algebraic curves with inexact input

2020 ◽  
Vol 76 ◽  
pp. 101794
Author(s):  
Michal Bizzarri ◽  
Miroslav Lávička ◽  
Jan Vršek
Keyword(s):  
Algebraic Curves ◽  
Approximate Symmetries

Approximate Symmetries in the Two-Neutrino Theory

1962 ◽  
Vol 128 (1) ◽  
pp. 378-385 ◽  
Author(s):  
G. Feinberg ◽  
F. Gürsey
Keyword(s):  
Approximate Symmetries ◽  
Neutrino Theory

scholarly journals Approximate transformations for van der Pol-type equations

2006 ◽  
Vol 2006 ◽  
pp. 1-11 ◽  
Author(s):  
R. K. Gazizov ◽  
C. M. Khalique
Keyword(s):  
Differential Equations ◽  
Small Parameter ◽  
Ordinary Differential Equations ◽  
Transformation Groups ◽  
Van Der Pol ◽  
Approximate Symmetries ◽  
Approximate Integration ◽  
Successive Reduction

Classification of van der Pol-type equations with respect to admitted approximate transformation groups transforming a small parameter is given. It is shown that approximate symmetries transforming the small parameter as well as the usual approximate symmetries can be used for approximate integration (e.g., by method of successive reduction of order) of ordinary differential equations with a small parameter.

scholarly journals Effective Hadronic Supersymmetry from Quantum Chromodynamics

2019 ◽  
Vol 64 (12) ◽  
pp. 1096
Author(s):  
S. Catto ◽  
Y. Gürcan ◽  
B. Nicolescu ◽  
E. Yu
Keyword(s):  
Symmetry Breaking ◽  
Quantum Chromodynamics ◽  
Quark Model ◽  
Diquark Model ◽  
Approximate Symmetries ◽  
Breaking Mechanism ◽  
Good Agreement ◽  
Hadronic Spectrum

A quark model with potentials derived from QCD that include antiquark-diquark model for excited hadrons leads to mass formulae in very good agreement with experiments. The approximate symmetries and supersymmetries of the hadronic spectrum are exploited including a symmetry breaking mechanism.

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