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math.DS2026
From bungee to and Hamiltonian systems and their integrability and nonintegrability
Vladimir Dragović, Borislav Gajić, Božidar Jovanović
We consider natural Hamiltonian systems with potentials that are or on a hypersurface and -smooth in the complement and introduce and study corresponding no…
math.DS2022
On differential equations of integrable billiard tables
Vladimir Dragović, Andrey E. Mironov
We introduce a method to find differential equations for functions which define tables, such that associated billiard systems admit a local first integral. We illustrate this metho…
math.DS2021
Isoperiodic families of Poncelet polygons inscribed in a circle and circumscribed about conics from a confocal pencil
Vladimir Dragović, Milena Radnović
Poncelet polygons inscribed in a circle and circumscribed about conics from a confocal family naturally arise in the analysis of the numerical range and Blaschke products. We exami…