Results 11 to 20 of about 2,430,570 (319)
An exact interior Kerr solution [PDF]
New Astronomy, 2018 We present a simple exact solution for the interior of a rotating star. The interpretation of the stress energy tensor as that of a fluid requires the existence of a high viscosity, which is quite expected for a rotating fluid. In spite of the negative stresses, energy conditions are in fact all satisfied.
Narayan Banerjee, Aravind P. Ravi
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Spiked oscillators: exact solution [PDF]
Journal of Physics A: Mathematical and Theoretical, 2010 A procedure to obtain the eigenenergies and eigenfunctions of a quantum spiked oscillator is presented. The originality of the method lies in an adequate use of asymptotic expansions of Wronskians of algebraic solutions of the Schroedinger equation. The procedure is applied to three familiar examples of spiked oscillators.
F. J. Gomez, J. Sesma
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Exact Solution and Exotic Fluid in Cosmology
Entropy, 2012 We investigate cosmological consequences of nonlinear sigma model coupled with a cosmological fluid which satisfies the continuity equation. The target space action is of the de Sitter type and is composed of four scalar fields.
Phillial Oh, Taeyoon Moon, Seyen Kouwn
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Another exact inflationary solution [PDF]
Physical Review D, 2000 10 pages, 0 ...
John W. Norbury, Adam T. Kruger
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An exact solution of truss vibration problems [PDF]
Proceedings of the Estonian Academy of Sciences, 2019 The Elements by a System of Transfer equations (EST) method offers exact solutions to various vibration problems of trusses, beams, and frames. The method can be regarded as an improved or modified transfer matrix method.
Andres Lahe +2 more
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Mathematics, 2023 This article explores adapted mathematical methods to solve the coupled nonlinear Schrödinger (C-NLS) equation through analytical and numerical methods.
Taghread Ghannam Alharbi +1 more
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Exact Solution of Schrödinger Equation for Pentaquark Systems [PDF]
Mathematics Interdisciplinary Research, 2023 In this paper, we present an exact analytical solution for five interacting quarks. We solve the Schr\"{o}dinger equation for pentaquarks in the framework of five-body and two-body problems.
Narges Tazimi +2 more
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Exact Solutions for Loewner Evolutions [PDF]
Journal of Statistical Physics, 2004 In this note, we solve the Loewner equation in the upper half-plane with forcing function xi(t), for the cases in which xi(t) has a power-law dependence on time with powers 0, 1/2 and 1. In the first case the trace of singularities is a line perpendicular to the real axis. In the second case the trace of singularities can do three things.
Kager, W., Nienhuis, B., Kadanoff, L.P.
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In search of exact solutions [PDF]
Nature, 2001 Many-body systems, such as electrons flowing in a superconductor, are among the most difficult theoretical problems to study. A new family of exactly solvable models may offer some answers.
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Exact solutions to supergravity [PDF]
Nuclear Physics B, 1997 18 pages, latex, uses a4.sty, no ...
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