Results 141 to 150 of about 39,926 (178)
Some of the next articles are maybe not open access.
Weingarten surfaces and sine-Gordon equation
Science in China Series A: Mathematics, 1997The article concerns Weingarten surfaces defined by the equation \[ K-2mH+ m^2-l^2=0 \] with the constants \(m,l\) satisfying \(m^2+l^2>0\). The fundamental forms can be adapted as \[ \begin{aligned} I&= \biggl(\cos^2 \frac\varphi 2 du^2+\sin^2 \frac\varphi 2 dv^2\biggr)/ (m^2+l^2),\\ II&= \biggl(\sin \frac {\varphi-\varphi_0}{2} \cos \frac \varphi 2 ...
Chen, Weihuan, Li, Haizhong
openaire +2 more sources
The Nonlinear Sine-Gordon Equation
1985In superconductors, at zero temperature, all electrons near the Fermi surface are united in pairs in a singlet-spin state with vanishing total momentum. As a result, their motion is correlated over distances of the order of the region of pairing (∿10−4 cm). This distance is called the coherence length.
openaire +1 more source
Analytical solution to sine-Gordon equation
Journal of Mathematical Physics, 2010We present an analytical solution for the sine-Gordon equation using the arctan-transformation and without restriction to any set of parameters.
Eleuch, H., Rostovtsev, Y. V.
openaire +2 more sources
Exact solutions to the double Sine-Gordon equation
Chaos, Solitons & Fractals, 2006zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wang, Mingliang, Li, Xiangzheng
openaire +2 more sources
Generalized solution of Sine-Gordon equation
2015In this paper, we are interested to study the Sine-Gordon equation in generalized function theory, we give a result of existence and uniqueness of generalized solution with initial data are distributions (elements of the Colombeau algebra). Then we study the association concept with the classical solution.
Chadli, Lalla Saadia +3 more
openaire +1 more source
Critical properties of the quantum sine-Gordon equation
Physical Review B, 1991We have developed a quantum-mechanical approach to study the critical properties of the quantum sine-Gordon equation describing a massless scalar field in 1 + 1 space-time dimensions with interaction density proportional to cos(beta-0-phi). The main feature of the present theory is to find an appropriate starting point for perturbation expansion, which
, Zhang, , Chen, , Wu
openaire +2 more sources
Breathers for the Sine-Gordon equation
1989The problem of breathers, solutions of a nonlinear homogeneous wave equation that are nontrivial, time-dependent and T-periodic is considered. A manifold of such solutions is shown to exist in a distributional sense and some qualitative properties of these solutions are described.
openaire +1 more source
The sine-Gordon expansion method for higher-dimensional NLEEs and parametric analysis
Heliyon, 2021M Ali Akbar
exaly

