460 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- National Academy of Sciences of UkraineUA46 papers
- Bogolyubov Institute for Theoretical PhysicsUA36 papers
- Institute of PhysicsPL31 papers
- Taras Shevchenko National University of KyivUA21 papers
- Institute of MagnetismUA16 papers
- Institute for Information RecordingUA13 papers
- Clarkson UniversityUS12 papers
- FZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicCZ12 papers
- Institute of MathematicsPL12 papers
- Frantsevich Institute for Problems in Materials ScienceUA11 papers
- Institute for Nuclear ResearchRU9 papers
- Johannes Gutenberg University MainzDE8 papers
16 papers · 1 filter
An informal introduction to perturbations of matrices determined up to similarity or congruence
Lena Klimenko, Vladimir V. Sergeichuk
The reductions of a square complex matrix A to its canonical forms under transformations of similarity, congruence, or *congruence are unstable operations: these canonical forms an…
Effect of collective molecular reorientations on Brownian motion of colloids in nematic liquid crystal
Taras Turiv, Israel Lazo, Alexander Brodin +4
In the simplest realization of Brownian motion, a colloidal sphere moves randomly in an isotropic fluid; its mean squared displacement (MSD) grows linearly with time . Br…
Nonequilibrium Kinetic Study of Sintering of Dispersed Nanoparticles
Vyacheslav Gorshkov, Vasily Kuzmenko, Vladimir Privman
Kinetic Monte Carlo approach is developed to study aspects of sintering of dispersed nanoparticles of bimodal size distributions. We explore mechanisms of neck development when sin…
Berge's Maximum Theorem for Noncompact Image Sets
Eugene A. Feinberg, Pavlo O. Kasyanov, Mark Voorneveld
This note generalizes Berge's maximum theorem to noncompact image sets. It is also clarifies the results from E.A. Feinberg, P.O. Kasyanov, N.V. Zadoianchuk, "Berge's theorem for n…
Two-photon exchange in electron-trinucleon elastic scattering
A. P. Kobushkin, Ju. V. Timoshenko
We discuss two-photon exchange (TPE) in elastic electron scattering off the trinucleon systems, 3He and 3H. The calculations are done in the semirelativistic approximation with the…
Shape-induced anisotropy in antiferromagnetic nanoparticles
H. Gomonay, S. Kondovych, V. Loktev
High fraction of the surface atoms considerably enhances the influence of size and shape on the magnetic and electronic properties of nanoparticles. Shape effects in ferromagnetic…
Asymptotic behaviour of functionals of cyclical long-range dependent random fields
Boris Klykavka, Andriy Olenko, Matthew Vicendese
Long-range dependent random fields with spectral densities which are unbounded at some frequencies are investigated. We demonstrate new examples of covariance functions which do no…
Estimation of harmonic component in regression with cyclically dependent errors
A. V. Ivanov, N. N. Leonenko, M. D. Ruiz-Medina +1
This paper deals with the estimation of hidden periodicities in a non-linear regression model with stationary noise displaying cyclical dependence. Consistency and asymptotic norma…
Magnetic Dynamics of a Multiferroic with an Antiferromagnetic Layer
Svitlana V. Kondovych, Helen V. Gomonay, Vadim M. Loktev
Shape effects in magnetic particles are widely studied, because of the ability of the shape and the size to control the parameters of a sample during its production. Experiments wi…
Two photon exchange amplitude with πN intermediate states: P33 channel
Dmitry Borisyuk, Alexander Kobushkin
We consider two-photon exchange (TPE) in the elastic electron-proton scattering and evaluate the effect of πN (pion + nucleon) intermediate hadronic states. Among different πN stat…
A reconstruction of modified holographic Ricci dark energy in gravity
Antonio Pasqua, Surajit Chattopadhyay, Iuliia Khomenko
In this paper, we consider a recently proposed model of Dark Energy (DE) know as Modified Holographic Ricci DE (MHRDE) (which is function of the Hubble parameter and its first deri…
Semiclassical trace formula for the two-dimensional radial power-law potentials
A. G. Magner, A. A. Vlasenko, K. Arita
The trace formula for the density of single-particle levels in the two-dimensional radial power-law potentials, which nicely approximate the radial dependence of the Woods-Saxon po…
Limit theorems for weighted nonlinear transformations of Gaussian stationary processes with singular spectra
Alexander V. Ivanov, Nikolai Leonenko, María D. Ruiz-Medina +1
The limit Gaussian distribution of multivariate weighted functionals of nonlinear transformations of Gaussian stationary processes, having multiple singular spectra, is derived, un…
Exploring covalently bonded diamondoid particles with valence photoelectron spectroscopy
Tobias Zimmermann, Robert Richter, Andre Knecht +7
We investigated the valence electronic structure of diamondoid particles in the gas phase, utilizing valence photoelectron spectroscopy. The samples were singly or doubly covalentl…
Analytic reconstruction of some dynamical systems
V. Gorodetskyi, M. Osadchuk
We propose a reconstruction of the initial system of ordinary differential equations from a single observed variable. The suggested approach is applied to a certain class of system…
Nuclear asymmetry energy and isovector stiffness within the effective surface approximation
J. P. Blocki, A. G. Magner, P. Ring +1
The isoscalar and isovector particle densities and the surface tension coefficients at the average binding energy are used to derive analytical expressions of the neutron skin thic…