Goldstone boson counting in linear sigma models with chemical potential [PDF]
, 2005 We analyze the effects of finite chemical potential on spontaneous breaking of internal symmetries within the class of relativistic field theories described by the linear sigma model.
A. Beraudo +4 more
core +1 more source
Approximation of associated GBS operators by Szasz-Mirakjan type operators
, 2020 In this article, the approximation properties of the Szasz-Mirakjan type operators are studied for the function of two variables, and the rate of convergence of the bivariate operators is determined in terms of total and partial modulus of continuity.
Yadav, Rishikesh +2 more
openaire +2 more sources
Symmetries, Sum Rules and Constraints on Effective Field Theories [PDF]
, 2014 Using unitarity, analyticity and crossing symmetry, we derive universal sum rules for scattering amplitudes in theories invariant under an arbitrary symmetry group.
Bellazzini, Brando +2 more
core +4 more sources
A new kind of Bernstein-Schurer-Stancu-Kantorovich-type operators based on q-integers
Journal of Inequalities and Applications, 2017 Agrawal et al. (Boll. Unione Mat. Ital. 8:169-180, 2015) introduced a Stancu-type Kantorovich modification of the operators proposed by Ren and Zeng (Bull. Korean Math. Soc.
Ruchi Chauhan +2 more
doaj +1 more source
On the GBS Bernstein-Stancu’s type operators [PDF]
Creative Mathematics and Informatics, 2013 In the present paper we establish the form of remainder term associated to the GBS (Generalized Boolean Sum) Bernstein-Stancu’s type operators, using bivariate divided differences.
openaire +1 more source
The approximation of bivariate Chlodowsky-Szász-Kantorovich-Charlier-type operators
Journal of Inequalities and Applications, 2017 In this paper, we introduce a bivariate Kantorovich variant of combination of Szász and Chlodowsky operators based on Charlier polynomials. Then, we study local approximation properties for these operators.
Purshottam Narain Agrawal +2 more
doaj +1 more source
Anatomy of Higgs decays into $\gamma \gamma$ and $\gamma Z$ within the EChL in the $R_\xi$ gauges [PDF]
, 2020 In this work we study the Higgs boson decays into two photons and into one photon and one $Z$ gauge boson within the context of the non-linear Effective Field Theory called the Electroweak Chiral Lagrangian.
Herrero, Maria, Morales, Roberto A.
core +1 more source
Lepton-number violation and right-handed neutrinos in Higgs-less effective theories
, 2006 Following previous work, we identify a symmetry S_nat that generalizes the concept of custodial symmetry, keeping under control deviations from the Standard Model (SM). To realize S_nat linearly, the space of gauge fields has to be extended.
H. Georgi +3 more
core +3 more sources
On certain GBS-Durrmeyer operators based on $q$-integers
TURKISH JOURNAL OF MATHEMATICS, 2017 Summary: In the present paper we introduce the GBS (Generalized Boolean Sum) operators of Durrmeyer type based on \(q\)-integers and the approximation of B-continuous functions using the above operators is studied. In addition, a uniform convergence theorem is established and the degree of approximation in terms of mixed modulus of continuity is ...
Băbosu, Dan +2 more
openaire +3 more sources
Observations on staggered fermions at non-zero lattice spacing [PDF]
, 2006 We show that the use of the fourth-root trick in lattice QCD with staggered fermions corresponds to a non-local theory at non-zero lattice spacing, but argue that the non-local behavior is likely to go away in the continuum limit.
Claude Bernard +3 more
core +2 more sources