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In this paper, on foundation of [D.S. Cohen and J.D. Murray, 1981; G.W. Chen et al., 1996; Chen Ning, 2005; Qi Lin Liu et al., 2003], to study population problem with extension Ginzbur-Landau type for (1) (3) and more general higher order nonlinear parabolic equation with initial bounded value problem which expresses it in existence, unique for classical solution, and by some method, to study this...
In this paper, we present the empirical investigation results on the urban public traffic networks (PTNs). We study four urban public traffic networks in south China, which are the urban public traffic networks of Guangzhou, Changsha, Zhuhai and Xiamin. The empirical results on the four big cities show that the accumulative act degree distributions of PTNs take neither power function forms, nor exponential...
A criminal location relationship network model based on complex networks theory is set up in this paper. By the research of this criminal location relationships network, a real weighted network, a number of methods and knowledge which are ignored by experts and scholars in their research are found here. Firstly, the criminal location relationship network model is built by using a considerable number...
The ant system is a new meta-heuristic mainly for hard combinatorial optimization problems. It has been unexpectedly successful and known as ant colony optimization (ACO) in recent years. Nowadays, a series of improvements have been made to the ACO, most of which focus on the exploitation of gather information to guide the search of ant colony towards better solution space but neglect the exploration...
This paper discusses evaluation modelling of investment options in path integral framework with the help of Geske-Johnson's analytical approximation for American options. Detailed procedure is presented with assumption that underlying assets price follows a geometric Brownian motion, the particular algorithm is summarized and the evaluation is optimized by using Lagrangian interpolation polynomial...
In this paper, we provide analytical expressions of the Cramer-Rao bounds for the frequencies, damping factors, amplitudes, and phases of complex exponentials in colored noise. These expressions show the explicit dependence of the bounds of each distinct parameter with respect to the amplitudes and phases, leading to readily interpretable formulae, which are then simplified in an asymptotic context...
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