ЗМІСТ

In Memory of Roman Gaida (1928–1998)

Gaida R., Tretyak V., Yaremko Yu.
Quasi-relativistic center-of-mass variables in applications

Llosa J.
Classical relativistic spin particles

Matsyuk R.
Third-order relativistic dynamics: classical spinning particle travelling in a plane

Duviryak A., Shpytko V., Tretyak V.
Isotropic forms of dynamics in the relativistic direct interaction theory

Sazdjian H.
Connecting the potential theory to the quantum field theory

Pelykh V.
Squared Weyl and Dirac fields with the Sommers-Sen connection associated with V³₄ distributions

Plyatsko R.
Gravitational spin-orbit interaction: criteria of increase

Opanasyuk Yu.A.
On single-time methods in relativistic gravity dynamics

Tretyak V.
On relativistic models in the equilibrium statistical mechanics

Blazhyjevskii L.F., Krynytskyi Yu.S.
The canonical u-v Bogolubov transformation in a weakly relativistic statistical theory of a charged particle system

Lengyel V., Rubish V., Fekete Yu., Chalupka S., Salak M.
The role of relativistic kinematics in describing two-quark systems

Staruszkiewicz A.
On the structure of the supplementary series of unitary irreducible representations of the proper, ortochronous Lorentz group

Darewych J.
Few-particle eigenstates in the Yukawa model

Tokarchuk M.V., Arimitsu T., Kobryn A.E.
Thermo field hydrodynamic and kinetic equations of dense quantum nuclear systems

Tytarenko P.V., Zhdanov V.I.
The existence and stability of relativistic shock waves: general criteria and numerical simulations for a non-convex equation of state

Hnatyk B., Petruk O.
Supernova remnants as cosmic ray accelerators. SNR IC 443