114 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Institute for Nuclear Research and Nuclear EnergyBG5 papers
- Bulgarian Academy of SciencesBG4 papers
- Consejo Superior de Investigaciones CientíficasES2 papers
- Instituto de Estructura de la MateriaES2 papers
- Joint Institute for Nuclear ResearchRU2 papers
- Universidad Complutense de MadridES2 papers
- Aristotle University of ThessalonikiGR1 paper
- Comenius University BratislavaSK1 paper
- Copenhagen Business SchoolDK1 paper
- Czech Academy of SciencesCZ1 paper
- Eötvös Loránd UniversityHU1 paper
- Institute of Chemistry of the Slovak Academy of SciencesSK1 paper
13 papers
Development of soft and hard skills of high-school students via Young Physicists' Tournament
Sergej Faletič, Assen Kyuldjiev, Thomas Lindner +9
The Young Physicists' Tournament (YPT) inspires high-school students to immerse themselves into an inquiry process closely resembling the real physics research. Using questionnaire…
Merging of bivariate compound Binomial processes with shocks
Pavlina K. Jordanova, Evelina Veleva
The paper investigates a discrete time Binomial risk model with different types of polices and shock events may influence some of the claim sizes. It is shown that this model can b…
A Comparison Study of Two High Accuracy Numerical Methods for a Parabolic System in Air Pollution Modelling
Ivan Dimov, Juri Kandilarov, Venelin Todorov +1
We present two approaches for enhancing the accuracy of second order finite difference approximations of two-dimensional semilinear parabolic systems. These are the fourth order co…
Two-grid algorithms for singularly perturbed reaction-diffusion problems on layer adapted meshes
Ivanka Tr. Angelova, Lubin G. Vulkov
We propose a new two-grid approach based on Bellman-Kalaba quasilinearization and Axelsson-Xu finite element two-grid method for the solution of singularly perturbed reaction-diffu…
IMEX schemes for a Parabolic-ODE system of European Options with Liquidity Shocks
W. Mudzimbabwe, Lubin G. Vulkov
The coupled system, where one is a degenerate parabolic equation and the other has not a diffusion term arises in the modeling of European options with liquidity shocks. Two implic…
Well-Posedness and Comparison Principle for Option Pricing with Switching Liquidity
Tihomir Gyulov, Lyuben Valkov
We consider an integro-differential equation derived from a system of coupled parabolic PDE and an ODE which describes an European option pricing with liquidity shocks. We study th…
A Second Order Approximation for the Caputo Fractional Derivative
Yuri Dimitrov
When , the approximation for the Caputo derivative where $σ_0^{(α)} = 1, σ_n^{(α)} =…
A Positive Flux Limited Difference Scheme for Option Pricing 2D Fully Non-linear Parabolic Equation with Uncertain Correlation
Miglena N. Koleva, Lubin G. Vulkov
We consider a two-asset non-linear model of option pricing in an environment where the correlation is not known precisely, but varies between two known values. First we discuss the…
Describing Papers and Reviewers' Competences by Taxonomy of Keywords
Yordan Kalmukov
This article focuses on the importance of the precise calculation of similarity factors between papers and reviewers for performing a fair and accurate automatic assignment of revi…
Momentum distributions in medium and heavy exotic nuclei
M. K. Gaidarov, G. Z. Krumova, P. Sarriguren +3
We study nucleon momentum distributions of even-even isotopes of Ni, Kr, and Sn in the framework of deformed self-consistent mean-field Skyrme HF+BCS method, as well as of theoreti…
Charge and matter distributions and form factors of light, medium and heavy neutron-rich nuclei
A. N. Antonov, D. N. Kadrev, M. K. Gaidarov +6
Results of charge form factors calculations for several unstable neutron-rich isotopes of light, medium and heavy nuclei (He, Li, Ni, Kr, Sn) are presented and compared to those of…
Testing He density distributions by calculations of total reaction cross-sections of He+Si
V. K. Lukyanov, E. V. Zemlyanaya, S. E. Massen +3
Calculations of the He + Si total reaction cross sections at intermediate energies are performed on the basis of the Glauber-Sitenko microscopic optical-limit model.…
Nucleon momentum distribution in deuteron and other nuclei within the light-front dynamics method
A. N. Antonov, M. Gaidarov, M. V. Ivanov +4
The relativistic light-front dynamics (LFD) method has been shown to give a correct description of the most recent data for the deuteron monopole and quadrupole charge form factors…