Results 21 to 30 of about 351,151 (266)
Gravitational equilibrium in the presence of a positive cosmological constant [PDF]
Physical Review D, 2002 7 pages, no ...
Nowakowski, Marek +2 more
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A note on the global attractivity of a discrete model of nicholson's blowflies
Discrete Dynamics in Nature and Society, 1999 In this paper, we further study the global attractivity of the positive equilibrium of the discrete Nicholson's blowflies model Nn+1−Nn=−δNn+pNn−ke−aNn−k, n=0,1,2,….
B. G. Zhang, H. X. Xu
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Position-specific hydrogen isotope equilibrium in propane [PDF]
Geochimica et Cosmochimica Acta, 2018 Intramolecular isotope distributions can constrain source attribution, mechanisms of formation and destruction, and temperature-time histories of molecules. In this study, we explore the D/H fractionation between central (-CH_2-) and terminal (-CH_3) positions of propane (C_3H_8)- a percent level component of natural gases. The temperature dependenceof
Xie, Hao +7 more
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Global attractivity of a higher order nonlinear difference equation with decreasing terms
Electronic Journal of Qualitative Theory of Differential EquationsIn the present paper, we further study the asymptotical behavior of the following higher order nonlinear difference equation \begin{equation*} x(n+1)= ax(n)+ bf( x(n)) + cf(x(n-k)), \qquad n=0, 1, \dots \end{equation*} where $a, b $ and $c$ are constants
Xiao Wang, Chuanxi Qian
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Discrete prey-predator model with fear effect and strong Allee effect
Xi'an Gongcheng Daxue xuebao, 2023 The rich dynamic properties of a discrete prey-predator model with fear effect and strong Allee effect are studied. The piecewise constant argument method of differential equation is used to discretize the system, and the existence of equilibrium point ...
HU Xinli, LI Hanghang
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SYMMETRY IN AN EQUILIBRIUM POSITION
Computers & Mathematics with Applications, 1988 AbstractA complete similarity was found between the symmetrical configurations observed at regular intergrowth and at orientation of a floating body by capillary forces.Relying on experimental observations a conclusion is drawn: in stable equilibrium the symmetry elements of freely interacting systems coincide with each other as far as possible ...
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Equilibrium positions, shape invariance and Askey–Wilson polynomials [PDF]
Journal of Mathematical Physics, 2005 We show that the equilibrium positions of the Ruijsenaars–Schneider–van Diejen systems with the trigonometric potential are given by the zeros of the Askey–Wilson polynomials with five parameters. The corresponding single particle quantum version, which is a typical example of “discrete” quantum mechanical systems with a q-shift type kinetic term, is ...
Odake, Satoru, Sasaki, Ryu
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Polynomials associated with equilibrium positions in Calogero Moser systems [PDF]
Journal of Physics A: Mathematical and General, 2002 41 pages.
Odake, S., Sasaki, R.
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Advances in Difference Equations, 2018 In this paper, we study a diffusion Holling–Tanner predator–prey model with ratio-dependent functional response and Simth growth subject to a homogeneous Neumann boundary condition.
Huiping Fang, Ling Hu, Yongfeng Wu
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