2019
Том 71
№ 1

All Issues

Kondratiev Yu. G.

Articles: 5
Anniversaries (Ukrainian)

Yurij Makarovich Berezansky (the 80th anniversary of his birth)

Gorbachuk M. L., Gorbachuk V. I., Kondratiev Yu. G., Kostyuchenko A. G., Marchenko V. O., Mitropolskiy Yu. A., Nizhnik L. P., Rofe-Beketov F. S., Samoilenko A. M., Samoilenko Yu. S.

Full text (.pdf)

Ukr. Mat. Zh. - 2005. - 57, № 5. - pp. 3-11

Article (English)

Infinite systems of stochastic differential equations and some lattice models on compact Riemannian manifolds

Daletskii A. Yu., Kondratiev Yu. G.

↓ Abstract   |   Full text (.pdf)

Ukr. Mat. Zh. - 1997. - 49, № 3. - pp. 326–337

Stochastic dynamics associated with Gibbs measures on an infinite product of compact Riemannian manifolds is constructed. The probabilistic representations for the corresponding Feller semigroups are obtained. The uniqueness of the dynamics is proved.

Article (Ukrainian)

Periodic Gibbs states

Barbulyak V. S., Kondratiev Yu. G.

↓ Abstract   |   Full text (.pdf)

Ukr. Mat. Zh. - 1993. - 45, № 4. - pp. 451–458

Periodic Gibbs states for quantum lattice systems are investigated. We formulate the definition of the periodic Gibbs states and the measures associated with them. Theorems of existence are proved for these states. We also prove the existence of the critical temperature for the system of anharmonic quantum oscillators with pairwise interaction.

Article (Ukrainian)

Kato's inequality for secondary-quantization operators

Kondratiev Yu. G.

Full text (.pdf)

Ukr. Mat. Zh. - 1983. - 35, № 6. - pp. 753–756

Article (Ukrainian)

Positive definite functions on certain sequence spaces

Kondratiev Yu. G.

Full text (.pdf)

Ukr. Mat. Zh. - 1976. - 28, № 1. - pp. 27–35