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AbstractAbstract
[en] Published in summary form only
Original Title
O modelo de Hubbard para U finito pelo metodo de Kadanoff-Baym
Source
Sociedade Brasileira de Fisica, Sao Paulo, SP (Brazil); 201 p; 1991; p. 232; 14. National Meeting on Condensed Matter Physics; Caxambu, MG (Brazil); 7-11 May 1991
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Miscellaneous
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AbstractAbstract
[en] The numbered asteroids are classified into families by a new method previously proposed by the author using the semi-major axis, the minimum value of the inclination and the argument of the perihelion as parameters, and the class characteristics are studied by several aspects. It seems to the author that there are two kinds of families, one being very compact in the phase space and containing many faint as well as a few bright asteroids and one being rather loose and bounded by secular and mean motion commensurable regions. (Auth.)
Primary Subject
Source
Markellos, V.V. (Patras Univ. (Greece)); Kozai, Y. (Tokyo Univ., Mitaka (Japan). Tokyo Astronomical Observatory) (eds.); Astrophysics and Space Science Library; v. 106; 424 p; ISBN 90-277-1650-1;
; 1983; p. 117-122; D. Reidel; Dordrecht (Netherlands); 74. Colloquium of the International Astronomical Union on dynamical trapping and evolution in the solar system; Gerakini (Greece); 30 Aug - 2 Sep 1982

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Book
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Antman, S. S., E-mail: ssa@math.umd.edu1998
AbstractAbstract
[en] Very simple arguments are used to show that some mathematically attractive viscous stresses, which prevent the formation of shocks and give a parabolic character to the equations of motion for continua in which they appear, are physically unacceptable because their material responses are affected by rigid motion.
Primary Subject
Source
Copyright (c) 1998 Birkhauser Verlag, Basel,; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Zeitschrift fuer Angewandte Mathematik und Physik; ISSN 0044-2275;
; CODEN ZAMPA8; v. 49(6); p. 980-988

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Gruemm, H.-R.
Technische Univ., Vienna (Austria). 1. Inst. fuer Theoretische Physik1984
Technische Univ., Vienna (Austria). 1. Inst. fuer Theoretische Physik1984
AbstractAbstract
[en] We present a geometric proof of Liouville's theorem on the existence of canonical coordinates for integrable systems. (Author)
Primary Subject
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1984; 3 p
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Sami, T.; Richert, J.; Weidenmueller, H.A.
International conference on selected aspects of heavy ion reactions. Proceedings1982
International conference on selected aspects of heavy ion reactions. Proceedings1982
AbstractAbstract
No abstract available
Primary Subject
Source
CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France); 166 p; ISBN 2-7272--0073-0;
; May 1982; p. 36-38; International conference on selected aspects of heavy ion reactions; Saclay (France); 3 - 7 May 1982; Published in summary form only.

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Tsiganov, A V, E-mail: tsiganov@mph.phys.spbu.ru2010
AbstractAbstract
[en] We introduce the Richelot class of superintegrable systems in N-dimensions whose n ≤ N equations of motion coincide with the Abel equations on the n - 1 genus hyperelliptic curve. Corresponding additional integrals of motion are the second-order polynomials of momenta and multiseparability of the Richelot superintegrable systems is related to the classical theory of covers of the hyperelliptic curves.
Primary Subject
Source
S1751-8113(10)23346-2; Available from http://dx.doi.org/10.1088/1751-8113/43/5/055201; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Journal of Physics. A, Mathematical and Theoretical (Online); ISSN 1751-8121;
; v. 43(5); [14 p.]

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Li, T.T.; De Mottoni, P.
International Centre for Theoretical Physics, Trieste (Italy)1991
International Centre for Theoretical Physics, Trieste (Italy)1991
AbstractAbstract
[en] The book consists of the Proceedings of the School on Qualitative Aspects and Applications of Nonlinear Evolution equations held at the ICTP Trieste between 10 September-5 October 1990. It includes Main Courses (5 lectures), Special Lectures (7 lectures) and Talks Given at the Seminars (13 lectures). A separate abstract was prepared for each lecture. Refs, figs and tabs
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Secondary Subject
Source
1991; 271 p; World Scientific; Singapore (Singapore); School on qualitative aspects and applications of nonlinear evolution equations; Trieste (Italy); 10 Sep - 5 Oct 1990; ISBN 981-02-0504-X; 

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Fan, Li; Ying, Zuguang; Chuang, Kuochih, E-mail: yingzg@zju.edu.cn2019
AbstractAbstract
[en] The parametrically excited stability of a periodically stiffened beam under general periodic axial excitation is studied and the effect of periodic stiffeners on the beam stability is considered for the first time. The partial differential equation of motion of the beam with periodic stiffeners under axial excitation is given. The Galerkin method is used to convert the partial differential equation into ordinary differential equations with periodic time-varying parameters. The direct eigenvalue analysis method based on the Fourier expansion and generalized eigenvalue analysis is applied to solve the parametrically excited stability problem of the stiffened beam. A simply supported beam with periodic stiffeners under periodic axial excitation is considered for numerical investigation. The parametrically excited stability of the stiffened beam and the effects of stiffeners and excitation on the stability are illustrated by numerical results on unstable regions. (paper)
Primary Subject
Source
2. International Conference on Mechanical, Electric and Industrial Engineering; Hangzhou (China); 25-27 May 2019; Available from http://dx.doi.org/10.1088/1742-6596/1303/1/012015; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Literature Type
Conference
Journal
Journal of Physics. Conference Series (Online); ISSN 1742-6596;
; v. 1303(1); [7 p.]

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Aichelburg, P.C.; Embacher, F.
Vienna Univ. (Austria). Inst. fuer Theoretische Physik1987
Vienna Univ. (Austria). Inst. fuer Theoretische Physik1987
AbstractAbstract
[en] The motion of a soliton in a supergravity background configuration is studied. The dynamics of the soliton is desribed by a trajectory in curved N = 2 superspace. For the proposed Langrangian the moments, the constraints and the generators of local supertranslations are displayed. An additional local gauge symmetry is exhibited. Special emphasis is laid on the classical equations of motion. These turn out to be a supersymmetric generalization of Papapetrou's equation of motion for a spinning particle in a gravitational field. (Author)
Primary Subject
Source
1987; 20 p
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Elsebeth Schroeder; Ola Toernkvist
Fermi National Accelerator Lab., Batavia, IL (United States). Funding organisation: USDOE Office of Energy Research, Washington, DC (United States)1998
Fermi National Accelerator Lab., Batavia, IL (United States). Funding organisation: USDOE Office of Energy Research, Washington, DC (United States)1998
AbstractAbstract
[en] We derive an exact equation of motion for a non-relativistic vortex in two- and three-dimensional models with a complex field. The velocity is given in terms of gradients of the complex field at the vortex position. We discuss the problem of reducing the field dynamics to a closed dynamical system with non-locally interacting strings as the fundamental degrees of freedom
Primary Subject
Source
Jan 1998; 7 p; International workshop on solitons, their properties, dynamics, interactions, and applications; Kingston (Canada); 20-26 Jul 1997; CONF-9707150--; CONTRACT AC02-76CH03000; ALSO AVAILABLE FROM OSTI AS DE98052296; NTIS; US GOVT. PRINTING OFFICE DEP
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