Information on the Ostrovski $\overset{\lower0.5em\hbox{$\overset{\lower0.5em\hbox{ Prize competition

Information

Information on the Ostrovski $\overset{\lower0.5em\hbox{$\overset{\lower0.5em\hbox{ Prize competition     

Serge\overset{\lower0.5em\hbox{ Nikolaevich Gurbatov (On his 50th birthday)

Chronicle

Serge $\overset{\lower0.5em\hbox{$\overset{\lower0.5em\hbox{ Nikolaevich Gurbatov (On his 50th birthday)     

Andre\overset{\lower0.5em\hbox{ Viktorovich Gaponov-Grekhov (On his 75th birthday)

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Andre $\overset{\lower0.5em\hbox{$\overset{\lower0.5em\hbox{ Viktorovich Gaponov-Grekhov (On his 75th birthday)     

70th birthday of Yuri $$\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}$$ Antonovich Simonov

On the 70th Anniversary of Yurii Antonovich Simonov

70th birthday of Yuri $\overset{\lower0.5em\hbox{$\overset{\lower0.5em\hbox{ Antonovich Simonov     

Content of the following issue of Opticheski $$\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}$$ Zhurnal (Journal of Optical Technology)

Chronicle

Content of the following issue of Opticheski $\overset{\lower0.5em\hbox{$\overset{\lower0.5em\hbox{ Zhurnal (Journal of Optical Technology)     

Yuriĭ Mikhaĭlovich Sukharevskiĭ (On his 95th birthday)

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Yuri $\overset{\lower0.5em\hbox{$\overset{\lower0.5em\hbox{ Mikha $\overset{\lower0.5em\hbox{$\overset{\lower0.5em\hbox{ lovich Sukharevski $\overset{\lower0.5em\hbox{$\overset{\lower0.5em\hbox{ (On his 95th birthday)     

Nikola\overset{\lower0.5em\hbox{ Grigor’evich Bibikov (On his 60th birthday)

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Nikola $\overset{\lower0.5em\hbox{$\overset{\lower0.5em\hbox{ Grigor’evich Bibikov (On his 60th birthday)     

Vitali $$\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} $$ Anatol’evich Zverev (On his 80th birthday)

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Vitali $\overset{\lower0.5em\hbox{$\overset{\lower0.5em\hbox{ Anatol’evich Zverev (On his 80th birthday)     

In memory of Vladimir Mikha $$\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}$$ lovich Kudryashov (December 11, 1930–February 26, 2003)

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In memory of Vladimir Mikha $\overset{\lower0.5em\hbox{$\overset{\lower0.5em\hbox{ lovich Kudryashov (December 11, 1930–February 26, 2003)     

In memory of Evgeniĭ L’vovich Shenderov (June 1, 1935–September 1, 2001)

Chronicle

In memory of Evgeni $\overset{\lower0.5em\hbox{$\overset{\lower0.5em\hbox{ L’vovich Shenderov (June 1, 1935–September 1, 2001)     

In memory of Alekse $$\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} $$ Sergeevich Nikiforov (March 28, 1927–October 1, 2002)

Chronicle

In memory of Alekse $\overset{\lower0.5em\hbox{$\overset{\lower0.5em\hbox{ Sergeevich Nikiforov (March 28, 1927–October 1, 2002)     

Modeling of Spin Hamiltonian Parameters for Vanadyl-Doped {\bf\hbox{K}_2\hbox{SO}_4{-}\hbox{Na}_2\hbox{SO}_4{-}\hbox{ZnSO}_4} Glass

A full ligand-field energy matrix diagonalization treatment for 3d ¹ ions in tetragonal symmetry is developed on the basis of the two spin?Corbit coupling parameter model, and the contributions of the spin?Corbit coupling of the ligand ions to the optical and electron paramagnetic resonance spectra are included. Spin Hamiltonian parameters of the tetragonal ${\rm V}^{4+}$ center in $\hbox{K}_2\hbox{SO}_4 {-} \hbox{Na}_2\hbox{SO}_4{-}\hbox{ZnSO}_4$ glass are calculated from the complete energy matrix diagonalization and the perturbation theory methods. The results calculated by both methods are not only close to each other but also in good agreement with the experimental values. Furthermore, the compressed defect structure of the ${\rm (VO_6)^{8-}}$ cluster is discussed.     

Ionization of hydrogen atom induced by relativistic particles collisions accompanied by low momentum transfer

Ionization of a hydrogen atom in soft collisions with a relativistic charged particle is considered for the cases (a) $\overset{\lower0.5em\hbox{$\overset{\lower0.5em\hbox{ Fiziki, Vol. 70, No. 3, 2000, pp. 9–12.     

Spherical-separability of Non-Hermitian Hamiltonians and Pseudo- PT\mathcal{PT} -symmetry

Non-Hermitian but -symmetrized spherically-separable Dirac and Schr?dinger Hamiltonians are considered. It is observed that the descendant Hamiltonians H _r , H _θ , and H _φ play essential roles and offer some “user-feriendly” options as to which one (or ones) of them is (or are) non-Hermitian. Considering a -symmetrized H _φ , we have shown that the conventional Dirac (relativistic) and Schr?dinger (non-relativistic) energy eigenvalues are recoverable. We have also witnessed an unavoidable change in the azimuthal part of the general wavefunction. Moreover, setting a possible interaction V(θ)≠0 in the descendant Hamiltonian H _θ would manifest a change in the angular θ-dependent part of the general solution too. Whilst some -symmetrized H _φ Hamiltonians are considered, a recipe to keep the regular magnetic quantum number m, as defined in the regular traditional Hermitian settings, is suggested. Hamiltonians possess properties similar to the -symmetric ones (here the non-Hermitian -symmetric Hamiltonians) are nicknamed as pseudo- -symmetric.