55 citations · 58 across the 3 of their papers we have counts for
4 papers
The Best Uniform Rational Approximation: Applications to Solving Equations Involving Fractional powers of Elliptic Operators
Stanislav Harizanov, Raytcho Lazarov, Svetozar Margenov +1
In this paper we consider one particular mathematical problem of this large area of fractional powers of self-adjoined elliptic operators, defined either by Dunford-Taylor-like int…
Analysis of numerical methods for spectral fractional elliptic equations based on the best uniform rational approximation
Stanislav Harizanov, Raytcho Lazarov, Pencho Marinov +2
Here we study theoretically and compare experimentally an efficient method for solving systems of algebraic equations, where the matrix comes from the discretization of a fractiona…
Comparison analysis on two numerical methods for fractional diffusion problems based on rational approximations of
Stanislav Harizanov, Raytcho Lazarov, Pencho Marinov +2
We discuss, study, and compare experimentally three methods for solving the system of algebraic equations , , where is a symmetric a…
Optimal Solvers for Linear Systems with Fractional Powers of Sparse SPD Matrices
Stanislav Harizanov, Raytcho Lazarov, Pencho Marinov +2
In this paper we consider efficient algorithms for solving the algebraic equation , , where is a symmetric and positive defini…