A new transformation method is developed using the general sine-Gordon travelling wave reduction equation and a generalized transformation. With the aid of symbolic computation, this method can be used to seek more types of solutions of nonlinear differential equations, which include not only the known solutions derived by some known methods but new solutions. Here we choose the double sine-Gor...

abstract accurate prediction of hourly minimum temperature is required for various crop models which simulate photosynthesis and transpiration. such data can be used for crop protection and reducing the crops injuries due to freezing as well. our objective of this study is employing trigonometric and pattern recognition (k-nn) approaches to evaluate their potential in prediction of hourly tempe...

X iv :h ep -t h/ 94 09 09 7v 1 1 7 Se p 19 94 CALT-68-1949, USC-94-015 hep-th/9409097 September 1994 On the non-relativistic limit of the quantum sine-Gordon model with integrable boundary condition. A. Kapustin, S. Skorik † Physics Department, California Institute of Technology, Pasadena, CA 91125. ‡ Physics Department, University of Southern California, Los Angeles, CA 90089-0484. Abstract We...

This paper deals with the localization of all the real roots of sine-polynomials. D. Richardson (1991, in ``effective Methods in Algebraic Geometry,'' pp. 427 440, Birkha user, Basel) has already studied this type of analytic function. He showed how to find the number of real roots in a bounded interval. Here we propose an algorithm which determines whether a sine-polynomial has a finite number...

Various transforms are employed for signal processing to obtain useful information, which is not explicitly available when the signal is in the time domain. Most of the real time signals such as speech, biomedical signals, etc., are non-stationary signals. The Fourier transform (FT), used for most of the signal processing applications, determines the frequency components present in the signal b...