activity
20102025
most citedSinc approximation of algebraically decaying functions

827 citations · 846 across the 12 of their papers we have counts for

collaborators

12 papers

math.NA2025

Subordination based approximation of Caputo fractional propagator and related numerical methods

Dmytro Sytnyk

In this work, we propose an exponentially convergent numerical method for the Caputo fractional propagator and the associated mild solution of the Cauchy problem with time…

math.NA2024

Numerical method for abstract Cauchy problem with nonlinear nonlocal condition

Volodymyr Makarov, Dmytro Sytnyk, Vitalii Vasylyk

Problem for the first order differential equation with an unbounded operator coefficient in Banach space and nonlinear nonlocal condition is considered. A numerical method is propo…

math.NA2024★ 1 cited

A Lattice Boltzmann Method for Non-Newtonian Blood Flow in Coiled Intracranial Aneurysms

Medeea Horvat, Stephan B. Lunowa, Dmytro Sytnyk +1

Intracranial aneurysms are the leading cause of hemorrhagic stroke. One of the established treatment approaches is the embolization induced by coil insertion. However, the predicti…

math.NA2023

Abstract Fractional Cauchy Problem: Existence of Propagators and Inhomogeneous Solution Representation

Dmytro Sytnyk, Barbara Wohlmuth

We consider a Cauchy problem for the inhomogeneous differential equation given in terms of an unbounded linear operator and the Caputo fractional derivative of order $α\in (0,…

math.NA2023★ 2 cited

Exponentially Convergent Numerical Method for Abstract Cauchy Problem with Fractional Derivative of Caputo Type

Dmytro Sytnyk, Barbara Wohlmuth

We present an exponentially convergent numerical method to approximate the solution of the Cauchy problem for the inhomogeneous fractional differential equation with an unbounded o…

math.NA2018★ 827 cited

Sinc approximation of algebraically decaying functions

Dmytro Sytnyk

An extension of sinc interpolation on to the class of algebraically decaying functions is developed in the paper. Similarly to the classical sinc interpolation we esta…

math.NA2018★ 4 cited

Parallel numerical method for nonlocal-in-time Schrödinger equation

Dmytro Sytnyk

We present a new parallel numerical method for solving the non-stationary Schrödinger equation with linear nonlocal condition and time-dependent potential which does not commute wi…

cond-mat.mtrl-sci2018★ 4 cited

The Luttinger-Kohn theory for multiband Hamiltonians: A revision of ellipticity requirements

Dmytro Sytnyk, Roderick Melnik

Modern applications require a robust and theoretically solid tool for the realistic modeling of electronic states in low dimensional nanostructures. The theory has frui…

math-ph2016★ 5 cited

Linear nonlocal problem for the abstract time-dependent non-homogeneous Schrödinger equation

Dmytro Sytnyk, Roderick Melnik

A nonlocal-in-time problem for the abstract Schrödinger equation is considered. By exploiting the linear nature of nonlocal condition we derive an exact representation of the solut…

math.DS2014★ 3 cited

Existence of the solution to a nonlocal-in-time evolutional problem

Dmytro Sytnyk, Volodymyr Makarov, Vitalii Vasylyk

This work is devoted to the study of a nonlocal-in-time evolutional problem for the first order differential equation in Banach space. Our primary approach, although stems from the…

cond-mat.mtrl-sci2010

Multiband Hamiltonians of the Luttinger-Kohn Theory and Ellipticity Requirements

Dmytro Sytnyk, Sunil Patil, Roderick Melnik

Modern applications require a robust and theoretically strong tool for the realistic modeling of electronic states in low dimensional nanostructures. The theory has fru…

math.NA2010

Fast convergent method for the -point problem in Banach space

Vitalii Vasylyk, Dmytro Sytnyk

The -point nonlocal problem for the first order differential equation with an operator coefficient in a Banach space is considered. An exponentially convergent algorithm is…