مشخصات پژوهش

صفحه نخست /HAMILTONIAN SYSTEMS AND ...
عنوان
HAMILTONIAN SYSTEMS AND TOPOLOGY OF THEIR ISOENERGETIC SURFACES HAMILTONIAN SYSTEMS AND TOPOLOGY OF THEIR ISOENERGETIC SURFACES
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
integrable Hamiltonian systems, momentum mapping, bifurcation diagram, topological invariant.
چکیده
STRACT In [2] a new method is suggested for describing the topology of isoenergy surfaces on lie algebra so (4). In this paper we apply this method for describing the topology of isoenergy surfaces for an integrable case on the lie algebra so (4). Study of topology of isoenergetic surfaces in Hamiltonian integrable systems is one of the most important discussion that relates the physical concepts and topological ones to each other. The topology of isoenergetic surfaces for classical cases of integrability has been studied by many authors. Such problems are described by the Euler equations on the Lie algebra e(3). Unfortunately the methods emerged from Euler equations do not generally apply to the Lie algebra so (4). We apply a new method to solve the problem for an integrable case that has recently been suggested in [2]. Our extension of this method is based on gluing of bits. In other words at first we project 􀜳􀯚,􀯛 􀬷 􀝐􀝋 ℝ􀬷(􀥺) that is called 􀜲􀯚,􀯛 􀬷 . We describe the topology of 􀜲􀯚,􀯛 􀬷 . by the polynomial with degree of three. This manifold is boundary and its components are homeomorphic to closed domains in ℝ􀬷(􀥺). Through blowing up these domains, the roots of describing polynomial that is located in domains upboild some cells. By enumeration of positive roots in every domain, we know that how many cells locate on our discs (bits). At last we glue these bits symmetrically (that have cells) and rebuild 􀜳􀝃,ℎ 3 .
پژوهشگران قربانعلی حقیقت دوست بناب (نفر اول)، رسول محجوبی (نفر دوم)، جعفر اوج بگ (نفر سوم)، مجید مرادی (نفر چهارم)