4 papers
Banach Spaces Generated by Finite-Valued Functions: Superreflexive Rigidity, Hankel Operators, and Universality
Miroslav Hristov, Atanas Ilchev, Diana Nedelcheva +1
We investigate Banach spaces generated by uniformly bounded families of functions taking values in a fixed finite set and establish a rigidity principle connecting the cardinality…
Ultrametric Convergence of Guarded Automata and Applications to Structural Input Validation
Atanas Ilchev, Hristo Kiskinov, George Pashev +1
We equip language-equivalence classes of deterministic finite automata with a distinguishing-word ultrametric and identify the resulting space isometrically with the regular langua…
Equilibrium in the Canonical Stackelberg Triopoly via Response Functions and Fixed Point Theory
Anton Badev, Martin Pavlov, Boyan Zlatanov
We analyze a canonical extension of the Stackelberg duopoly to a sequential framework, where each firm strategically anticipates the reactions of all subsequent players. In a triop…
Perturbation Method in Musielak-Orlicz Sequence Spaces
Pando Georgiev, Vasil Zhelinski, Boyan Zlatanov
We generalize an abstract variational principle in Banach spaces, introduced by Topalova \& Zlateva, by showing that the set of perturbations for which a perturbed l…