ناوردای توپولوژیکی یک سیستم هامیلتونی انتگرال‌پذیر روی مخروط واقع در یک میدان پتانسیلی

نویسندگان
دانشگاه شهید مدنی آذربایجان دانشکدۀ علوم پایه، گروه ریاضی محض
چکیده
در این مقاله توپولوژی رویه‌های هم‌انرژی غیرتکین برای سیستم هامیلتونی با دو درجۀ آزادی روی مخروط واقع در یک میدان پتانسیلی توصیف شده است. هم‌چنین روش یافتن ناوردای توپولوژیکی سیستم‌های هامیلتونی انتگرال‌پذیر از حالت فشرده به رویه‌های دوار نافشرده توسیع داده شده است.
کلیدواژه‌ها

عنوان مقاله English

Topological Invariant of Integrable Hamiltonian System on Cone Located in a Potential Field

نویسنده English

Ghorbanali Haghiighatdoost
Azarbaijan Shahid Madani Uni.
چکیده English



The theory of topological classification of integrable Hamiltonian systems with two degrees of freedom due to Fomenko and his school‎. ‎On the basis of this theory we give a topological Liouville classification of the integrable Hamiltonian systems with two degrees of freedom‎. ‎Essentially‎, ‎to an integrable system with two degrees of freedom which is restricted to a nonsingular 3-dimensional iso-energy manifold. Fomenko's theory ascribes in an effective way a certain discrete invariant which has the structure of a graph with numerical marks‎. ‎This invariant‎, ‎which is called the marked molecule or the Fomenko-Zieschang invariant‎, ‎gives a full description (up to Liouville equivalence) of the Liouville foliation for the system.

The topological classification of integrable Hamiltonian systems corresponding to the Liouville equivalence in potential fields on surfaces of revolution for surfaces that is diffeomorphic with 2-dimensional sphere, contains a wide classes of mechanical systems that describes the motion of a particle on a 2-dimensional sphere with revolution metric, which has been studied.

In this paper, the topology of non-singular iso-energy surfaces for a Hamiltonian system with two degrees of freedom on a cone located in a potential field is described. Also, the method of finding the topological invariant of integrable Hamiltonian systems is extended from compact case to non-compact rotating surfaces.

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کلیدواژه‌ها English

Hamiltonian System
Iso-energy Surfaces
Fomenko-Zieschang invariant
Potential field
1. ‎Haghighatdoost Gh‎. ‎, ‎ ‎Oshemkov A‎., "The topology of Liouville foliation for the Sokolov integrable case on the Lie algebra so (4)"‎, ‎Sbornik‎ ‎Mathematics, Vol. 200, 6 (2009) 899-921.## 2. ‎Haghighatdoost Gh‎., "The topology of isoenergetic surfaces for the Sokolov integrable case in the Lie algebra so (4) ",Doklady. Mathematics, Vol. 71, 2 (2005) 256-259. ## 3. Bolsinov A.V., Anatoly Fomenko, ‎"Integrable Hamiltonian Systems: Geometry, Topology, Classification", Taylor & Francis (2004) 752 pages. ## 4. Fomenko A. T., ‎Konyaev A.Yu‎.‎, ‎"New approach to symmetries and singularities‎ ‎‎‎in integrable Hamiltonian systems"‎, ‎Topology Appl‎. ‎159, 7 (2012) 1964-1975‎.## 5. Fomenko A. T., ‎Kantonistova E‎. ‎O‎.‎, ‎"Topological classification of geodesic flows on revolution 2-surfaces with potential"‎, Springer‎, ‎ Vol. 30 (2015) 11-27‎‎‎.## 6. Nikolaenko S., "Topological ‎Classifi‎cation of the Goryachev Integrable Systems in the Rigid Body Dynamics: Non-Compact ‎Case. Lobachevskii Journal of Mathematics, Vol. 38, No. 6 (2017) 1050-1060‎‎.##