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Publications in Math-Net.Ru |
Citations |
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1995 |
| 1. |
L. M. Lerman, Ya. L. Umanskii, “Classification of four-dimensional integrable Hamiltonian systems and Poisson actions of $\mathbb R^2$ in extended neighbourhoods of simple singular points. III. Realization”, Mat. Sb., 186:10 (1995), 89–102    ; Sb. Math., 186:10 (1995), 1477–1491  |
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1994 |
| 2. |
L. M. Lerman, Ya. L. Umanskii, “Isoenergetic classification of integrable Hamiltonian systems in a neighborhood of a simple elliptic point”, Mat. Zametki, 55:5 (1994), 88–97 ; Math. Notes, 55:5 (1994), 496–501 |
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1993 |
| 3. |
L. M. Lerman, Ya. L. Umanskii, “Classification of four-dimensional integrable Hamiltonian systems and Poisson actions of
$\mathbb{R}^2$ in extended neighborhoods of simple singular points. II”, Mat. Sb., 184:4 (1993), 105–138 ; Russian Acad. Sci. Sb. Math., 78:2 (1994), 479–506 |
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1992 |
| 4. |
L. M. Lerman, Ya. L. Umanskii, “Classification of four-dimensional integrable Hamiltonian systems and Poisson actions of $\mathbb{R}^2$ in extended neighborhoods of simple singular points. I”, Mat. Sb., 183:12 (1992), 141–176 ; Russian Acad. Sci. Sb. Math., 77:2 (1994), 511–542 |
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1990 |
| 5. |
Ya. L. Umanskii, “Necessary and sufficient conditions for topological equivalence of three-dimensional Morse–Smale dynamical systems with a finite number of singular trajectories”, Mat. Sb., 181:2 (1990), 212–239 ; Math. USSR-Sb., 69:1 (1991), 227–253 |
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1983 |
| 6. |
L. M. Lerman, Ya. L. Umanskii, “Necessary conditions for the existence of heteroclinic trajectories in an integral Hamiltonian system with two degrees of freedom”, Uspekhi Mat. Nauk, 38:5(233) (1983), 195–196 ; Russian Math. Surveys, 38:5 (1983), 150–151 |
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1979 |
| 7. |
V. S. Medvedev, Ya. L. Umanskii, “Decomposition of $n$-dimensional manifolds into simple manifolds”, Izv. Vyssh. Uchebn. Zaved. Mat., 1979, no. 1, 46–50 ; Soviet Math. (Iz. VUZ), 23:1 (1979), 36–39 |
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1976 |
| 8. |
Ya. L. Umanskii, “The scheme of a three-dimensional Morse–Smale dynamical system without closed trajectories”, Dokl. Akad. Nauk SSSR, 230:6 (1976), 1286–1289 |
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1974 |
| 9. |
V. S. Medvedev, Ya. L. Umanskii, “Regular components of homeomorphisms on $n$-dimensional manifolds”, Izv. Akad. Nauk SSSR Ser. Mat., 38:6 (1974), 1324–1342 ; Math. USSR-Izv., 8:6 (1974), 1305–1322 |
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