@ARTICLE{Anh_Pham_The_Variation_2018,
 author={Anh, Pham The and Babiarz, Artur and Czornik, Adam and Niezabitowski, Michał and Siegmund, Stefan},
 volume={vol. 28},
 number={No 4},
 pages={617–633},
 journal={Archives of Control Sciences},
 howpublished={online},
 year={2018},
 publisher={Committee of Automatic Control and Robotics PAS},
 abstract={In this paper, we establish variation of constant formulas for both Caputo and Riemann- Liouville fractional difference equations. The main technique is the Z -transform. As an application, we prove a lower bound on the separation between two different solutions of a class of nonlinear scalar fractional difference equations.},
 title={Variation of constant formulas for fractional difference equations},
 type={Artykuły / Articles},
 URL={http://ochroma.man.poznan.pl/Content/109505/PDF/ACS-2018-4-6.pdf},
 doi={10.24425/acs.2018.125486},
 keywords={fractional difference equation, variation of constant, separation of solutions},
}