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pro vyhledávání: '"Donev, S."'
We study the influence of the different choice of unit cells on the Bloch solutions of Schr\c{c}dinger equation for one-dimensional periodic Kronig- Penney models with rectangular potential barriers or potential wells and partially constant effectiv
Externí odkaz:
http://arxiv.org/abs/quant-ph/0204053
Autor:
Trifonov, D. A., Donev, S. G.
The proposition 1 is incomplete. In some of the examples D(a,b) may not obey the triangle inequality. The paper is withdrawn for further elaboration.
Comment: the paper is withdrawn for further elaboration
Comment: the paper is withdrawn for further elaboration
Externí odkaz:
http://arxiv.org/abs/quant-ph/0005087
Publikováno v:
Acta Medica Bulgarica, Vol 45, Iss 2, Pp 58-62 (2018)
We describe the case of a 74-year-old Bulgarian woman with a long history of chronic urticaria with severe burning sensation, arthralgia and fever. Additional symptoms of Schnitzler such as monoclonal immunoglobulin – kappa component, elevated eryt
Externí odkaz:
https://doaj.org/article/c3ab699cdf75485eb593c3fcc747f5f5
Autor:
Donev, S., Trifonov, D.
Publikováno v:
Aspects of Complex Analysis, Differential Geometry, Mathematical Physics and Applications, p. 246-61, Eds: S. Dimiev and K. Sekigawa, W. Scientific, 1999
This paper aims to present the pure field part of the newly developed nonlinear {\it Extended Electrodynamics} [1]-[3] in non-relativistic terms, i.e. in terms of the electric and magnetic vector fields (${\mathbf E},{\mathbf B}$), and to give explic
Externí odkaz:
http://arxiv.org/abs/physics/9812009
Autor:
Hunter, G., Ecimovic, P., Schlifer, I., Walker, I. M., Beamish, D., Donev, S., Kowalski, M., Arslan, S., Heck, S.
Spherical Harmonics, $Y_\ell^m(\theta,\phi)$, are derived and presented (in a Table) for half-odd-integer values of $\ell$ and $m$. These functions are eigenfunctions of $L^2$ and $L_z$ written as differential operators in the spherical-polar angles,
Externí odkaz:
http://arxiv.org/abs/math-ph/9810001
Autor:
Trifonov, D. A., Donev, S. G.
Publikováno v:
J.Phys.A31:8041-8047,1998
New uncertainty relations for n observables are established. The relations take the invariant form of inequalities between the characteristic coefficients of order r, r = 1,2,...,n, of the uncertainty matrix and the matrix of mean commutators of the
Externí odkaz:
http://arxiv.org/abs/quant-ph/9809026
Autor:
Donev, S., Tashkova, M.
This paper aims to give explicitly all non-linear vacuum solutions to our non-linear field equations, and to define in a coordinate free manner the important subclass of non-linear solutions, which we call almost photon-like. By means of a correct in
Externí odkaz:
http://arxiv.org/abs/patt-sol/9710003
Autor:
Donev, S., Tashkova, M.
This paper aims to consider the general properties of the non-linear solutions to the vacuum equations of Extended Electrodynamics. The *-invariance and the conformal invariance of the equations are mentioned. It is also proved that all non-linear so
Externí odkaz:
http://arxiv.org/abs/patt-sol/9710001
Autor:
Donev, S., Tashkova, M.
This paper aims to present an elaborate view on the motivation and realization of the idea to extend Maxwell's electrodynamics to Extended Electrodynamics in a reasonable and appropriate way in order to make it possible to describe electromagnetic (3
Externí odkaz:
http://arxiv.org/abs/patt-sol/9709006
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