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20132021
most citedAnalysis of numerical methods for spectral fractional elliptic equations based on the best uniform rational approximation

55 citations · 68 across the 9 of their papers we have counts for

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Showing 2020Show all

3 papers · 1 filter

math.NA2020

A Survey on Numerical Methods for Spectral Space-Fractional Diffusion Problems

Stanislav Harizanov, Raytcho Lazarov, Svetozar Margenov

The survey is devoted to numerical solution of the fractional equation , , where is a symmetric positive definite operator corresponding to a second order elli…

math.NA2020

Spectral Fractional Laplacian with Inhomogeneous Dirichlet Data: Questions, Problems, Solutions

Stanislav Harizanov, Svetozar Margenov, Nedyu Popivanov

In this paper we discuss the topic of correct setting for the equation , with . The definition of the fractional Laplacian on the whole space , $n=…

q-bio.PE2020★ 10 cited

Mathematical and Computer Modeling of COVID-19 Transmission Dynamics in Bulgaria by Time-depended Inverse SEIR Model

Svetozar Margenov, Nedyu Popivanov, Iva Ugrinova +2

In this paper we explore a time-depended SEIR model, in which the dynamics of the infection in four groups from a selected target group (population), divided according to the infec…