3 papers
physics.flu-dyn2025
Data-driven control of a magnetohydrodynamic flow
Adam Uchytil, Milan Korda, Jiří Zemánek
We demonstrate the feedback control of a weakly conducting magnetohydrodynamic (MHD) flow via Lorentz forces generated by externally applied electric and magnetic fields. Specifica…
math.FA2016
Nice connecting paths in connected components of sets of algebraic elements in a Banach algebra
E. Makai, Jaroslav Zemánek
Generalizing earlier results about the set of idempotents in a Banach algebra, or of self-adjoint idempotents in a -algebra, we announce constructions of nice connecting paths…
math.FA2012
Power convergence of Abel averages
Yuri Kozitsky, David Shoikhet, Jaroslav Zemanek
Necessary and sufficient conditions are presented for the Abel averages of discrete and strongly continuous semigroups, and , to be power convergent in the operator norm…