Results 1 to 10 of about 1,501 (78)

Upper Bounds of the Complexity of Functions over Finite Fields in Some Classes of Kroneker Forms

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2015
Polynomial representations of Boolean functions have been studied well enough. Recently, the interest to polynomial representations of functions over finite fields and over finite rings is being increased.
A.S. Baliuk, G.V. Yanushkovsky
doaj   +1 more source

Space-time symplectic extension [PDF]

open access: yes, 2001
It is conjectured that in the origin of space-time there lies a symplectic rather than metric structure. The complex symplectic symmetry Sp(2l,C), l\ge1 instead of the pseudo-orthogonal one SO(1,d-1), d\ge4 is proposed as the space-time local structure ...
F. J. Yndurain   +7 more
core   +3 more sources

Lower Bound of the Complexity of Seven-Valued Functions in the Class of Polarized Polynomials

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2017
One of the directions of the investigation of functions over finite fields is the study of their representations, including polynomial ones. In the area of polynomial representations of functions the problem of estimating the complexity of such ...
A.S. Baliuk, A.S. Zinchenko
doaj   +1 more source

On the stability of compact supermassive objects [PDF]

open access: yes, 2001
Proceeded from the gravitation equations proposed by one of authors it was argued in a previous paper that there can exist supermassive compact configurations of degenerated Fermi-gas without events horizon. In the present paper we consider the stability
Kochetov, A., Verozub, L.
core   +5 more sources

Thermal Abundances of Heavy Particles [PDF]

open access: yes, 2000
Matsumoto and Yoshimura [hep-ph/9910393] have argued that there are loop corrections to the number density of heavy particles (in thermal equilibrium with a gas of light particles) that are not Boltzmann suppressed by a factor of e^(-M/T) at temperatures
A. Singh   +5 more
core   +2 more sources

On one connection between Lorentzian and Euclidean metrics

open access: yes, 1999
We investigate connections between pairs of (pseudo-)Riemannian metrics whose sum is a (tensor) product of a covector field with itself. A bijective mapping between the classes of Euclidean and Lorentzian metrics is constructed as a special result.
Alty, Bozhidar Z. Iliev, Hawking, Markus
core   +1 more source

Stability of multi-parameter solitons: Asymptotic approach [PDF]

open access: yes, 1999
General asymptotic approach to the stability problem of multi-parameter solitons in Hamiltonian systems $i\partial E_n/\partial z=\delta H/\delta E_n^*$ has been developed.
Skryabin, Dmitry V.
core   +2 more sources

Information dynamics algorithm for detecting communities in networks

open access: yes, 2011
The problem of community detection is relevant in many scientific disciplines, from social science to statistical physics. Given the impact of community detection in many areas, such as psychology and social sciences, we have addressed the issue of ...
Albert   +24 more
core   +1 more source

Rheological effects in the linear response and spontaneous fluctuations of a sheared granular gas [PDF]

open access: yes, 2012
The decay of a small homogeneous perturbation of the temperature of a dilute granular gas in the steady uniform shear flow state is investigated. Using kinetic theory based on the inelastic Boltzmann equation, a closed equation for the decay of the ...
Brey, J. Javier   +2 more
core   +2 more sources

Optimal Masks for Low-Degree Solar Acoustic Modes [PDF]

open access: yes, 2000
We suggest a solution to an important problem of observational helioseismology of the separation of lines of solar acoustic (p) modes of low angular degree in oscillation power spectra by constructing optimal masks for Doppler images of the Sun. Accurate
A. G. Kosovichev   +3 more
core   +3 more sources

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