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Three Bartlett-type corrections for score statistics in symmetric nonlinear regression models
(SPRINGER, 2010)
We present simple matrix formulae for corrected score statistics in symmetric nonlinear regression models. The corrected score statistics follow more closely a chi (2) distribution than the classical score statistic. Our ...
Fisher information and alpha-connections for a class of transformational models
(Elsevier Science BvAmsterdamHolanda, 2000)
P T -symmetric strings
(Elsevier, 2014-04)
We study both analytically and numerically the spectrum of inhomogeneous strings with PT-symmetric density. We discuss an exactly solvable model of PT-symmetric string which is isospectral to the uniform string; for more ...
The second symmetric product of finite graphs from a homotopical viewpoint
(Khayyam Journal of Mathematics, 2019)
Nonlinear electrodynamics as a symmetric hyperbolic system
(American Physical Society, 2015-10)
Nonlinear theories generalizing Maxwell's electromagnetism and arising from a Lagrangian formalism have dispersion relations in which propagation planes factor into null planes corresponding to two effective metrics which ...
Symmetric quadratic Hamiltonians with pseudo-Hermitian matrix representation
(Academic Press Inc Elsevier Science, 2016-06)
We prove that any symmetric Hamiltonian that is a quadratic function of the coordinates and momenta has a pseudo-Hermitian adjoint or regular matrix representation. The eigenvalues of the latter matrix are the natural ...
On an extension of the von Mises distribution due to Batschelet
(TAYLOR & FRANCIS LTD, 2011)
This paper considers the three-parameter family of symmetric unimodal circular distributions proposed by Batschelet in [1], an extension of the von Mises distribution containing distributional forms ranging from the highly ...
An empirical model for preliminary seismic response estimation of free-plan nominally symmetric buildings using ANFIS
(ELSEVIER SCI LTD, 2012)
The good seismic performance of free-plan buildings during the last M-w = 8.8, February 27, 2010 Chile earthquake, deserves special attention in order to understand the clues for such behavior. Also, and because of economic ...
Mass generation for Abelian spin-1 particles via a symmetric tensor
(Elsevier B.V., 2012-02-01)
In the topologically massive BF model (TMBF) the photon becomes massive via coupling to an antisymmetric tensor, without breaking the U(1) gauge symmetry. There is no need of a Higgs field. The TMBF model is dual to a ...