Results 31 to 40 of about 4,683,450 (296)

Exact solitary and periodic-wave solutions of the K(2,2) equation (defocusing branch) [PDF]

open access: yes, 2010
An auxiliary elliptic equation method is presented for constructing exact solitary and periodic travelling-wave solutions of the K(2, 2) equation (defocusing branch). Some known results in the literature are recovered more efficiently, and some new exact
Deng, Xijun, Cao, Jinlong, Parkes, E.J.
core   +3 more sources

An Application of Interacting Shear Flows Theory: Exact Solution for Unsteady Oblique Stagnation Point Flow [PDF]

open access: yes, 2006
An analytical solution of the governing equations of the interacting shear flows for unsteady oblique stagnation point flow is obtained. It has the same form as that of the exact solution obtained from the complete NS equations and physical analysis and ...
高智   +3 more
core   +1 more source

Exact Solutions in Modified Gravity Models

open access: yesEntropy, 2012
We review the exact solutions in modified gravity. It is one of the main problems of mathematical physics for the gravity theory. One can obtain an exact solution if the field equations reduce to a system of ordinary differential equations. In this paper
Valery V. Obukhov, Andrey N. Makarenko
doaj   +1 more source

Exact solution and approximate solution of irregular wave radiation stress

open access: yesShuili Shuiyun Gongcheng Xuebao, 2018
The wave radiation stress is the main driving force of wave induced longshore current and even nearshore current. It is directly related to the size and hydrodynamic characteristics of longshore current whether the calculation of the wave radiation ...
SHEN Liangduo   +3 more
doaj   +1 more source

On the multisummability of WKB solutions of certain singularly perturbed linear ordinary differential equations [PDF]

open access: yesOpuscula Mathematica, 2015
Using two concrete examples, we discuss the multisummability of WKB solutions of singularly perturbed linear ordinary differential equations. Integral representations of solutions and a criterion for the multisummability based on the Cauchy-Heine ...
Yoshitsugu Takei
doaj   +1 more source

Anisotropic Stars: Exact Solutions [PDF]

open access: yesGeneral Relativity and Gravitation, 2002
We study the effects of anisotropic pressure on the properties of spherically symmetric, gravitationally bound objects. We consider the full general relativistic treatment of this problem and obtain exact solutions for various form of equations of state connecting the radial and tangential pressures.
Dev, Krsna, Gleiser, Marcelo
openaire   +3 more sources

Graham's number stable digits: An exact solution [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
In the decimal numeral system, we prove that the well-known Graham's number, G:=ⁿ3 (i.e., 3^{3^{...^{3}}} (n times)), and any base 3 tetration whose hyperexponent is larger than n share the same slog₃(G)-1 rightmost digits (where slog indicates the ...
Marco Ripà
doaj   +1 more source

Exact solutions of a charged wormhole [PDF]

open access: yesPhysical Review D, 2001
In this paper, the backreaction to the traversable Lorentzian wormhole spacetime by the scalar field or electric charge is considered to find the exact solutions. The charges play the role of the additional matter to the static wormhole which is already constructed by the exotic matter.
Kim, Sung-Won, Lee, Hyunjoo
openaire   +2 more sources

Exact Solution and Exotic Fluid in Cosmology

open access: yesEntropy, 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
doaj   +1 more source

Exact solution of the Schwarzian theory [PDF]

open access: yesPhysical Review D, 2017
3 ...
Belokurov, V. V., Shavgulidze, E. T.
openaire   +2 more sources

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