COLIC
发表于 2025-3-28 17:22:36
José A. Cruz,Laureano R. Hoyos,Arcesio Lizcanoy occur in the embedding spherical cluster of old stars. This increases the richness of possible evolution scenarios of the embedding cluster and may lead to effective feeding of supermassive black holes through tidal disruption of stars on extremely eccentric orbits..978-3-319-37857-2978-3-319-03650-2Series ISSN 2190-5053 Series E-ISSN 2190-5061
Prostatism
发表于 2025-3-28 22:37:26
Osvaldo Bottiglieri,Francesco Cafaro,Federica Cotecchialationship. All such systems are Stäckel transforms of systems on complex Euclidean space or the complex 3-sphere. We survey these results and announce a series of new results concerning the structure of superintegrable systems with degenerate potentials. In several cases the classification theory f
miniature
发表于 2025-3-29 01:16:38
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Laconic
发表于 2025-3-29 03:28:41
Marco Caruso,Cristina Jommi Hamiltonian systems; it is shown that every system having an inverse Jacobi last multiplier equal to one can be written as a Hamiltonian system, if the Poisson bracket is properly defined (this can be done in general with the help of the Nambu bracket).
栏杆
发表于 2025-3-29 08:40:58
Kalehiwot N. Manahiloh,Balasingam Muhunthan spacetime-dependent symmetry transformations, is shown to give rise to a chain of Klein-Noether identities with the consequence that field equations cease to be independent. A further section deals with the properties of the Poincaré group and its Lie algebra, and a discussion of all the kinematica
COW
发表于 2025-3-29 13:10:10
Ismael Riedel,Edward Andò,Simon Salager,Pierre Bésuelle,Gioacchino Viggianis with models of deriving Yang-Mills and gravity in four dimensions from gravity formulated in higher dimensions, and commonly called Kaluza-Klein models. The different contributions by T. Kaluza and by O. Klein are carefully disentangled, in order to see the merits and the problems of this program.
WITH
发表于 2025-3-29 17:32:25
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Infantry
发表于 2025-3-29 23:13:51
Raffaele Papa,Marco V. Nicoteraaps, particularly appropriate for an Einstein symposium because unified gauge theory represents a major step towards the realization of Einstein’s dream of unifying the fundamental interactions by means of a single universal principle. It is also, perhaps, appropriate to note that 1979 is not only t
escalate
发表于 2025-3-30 00:10:02
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收藏品
发表于 2025-3-30 06:04:27
Camillo Airò Farulla,Marco Rosoneion gives in general a family of partial differential equations with invariant solution variety. Throughout this article we will call the corresponding partial differential operators also . in this case. For .(.) this family contains the Schrödinger operator.