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[文献書誌] H. Matsunaga, R. Miyazaki and T. Hara: "Global attractivity results for nonlinear delay differential equations"Journal of Mathematical Analysis and Applications. 234. 77-90 (1999)
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[文献書誌] Y. Satito, T. Hara and W. Ma: "Necessary and sufficient conditions for permanence and global stability of a Lotka-Volterra system with two delays"Journal of Mathematical Analysis and Applications. 236. 534-556 (1999)
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[文献書誌] H. Matsunaga, and T. Hara: "The asymptotic stability of a two-dimensional linear delay difference equation"Dynamics of Continuous, Discrete and Impulsive Systems. 6. 465-473 (1999)
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[文献書誌] Y. Takeuchi and W. Ma: "Stability analysis on a delayed SIR epidemic model with density dependent birth process"Dynamics of Continuous, 7 Discrete and Impulsive Systems. 5. 171-184 (1999)
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[文献書誌] J. Sugie and M. Katayama: "Global asymptotic stability of a predator-prey system of Holling type"Nonlinear Analysis. 38. 105-121 (1999)
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[文献書誌] R. Miyazaki: "Analysis of characteristic roots of delay-differential systems"Dynamics of Continuous, Discrete and Impulsive Systems. 5. 195-208 (1999)
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[文献書誌] T. Sakata and T. Hara: "Dynamics of a linear differential system with piecewise constant argument"Dynamics of Continuous, Discrete and Impulsive Systems. (in press).
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[文献書誌] H. Matsunaga, T. Hara and T. Sakata: "Galobal attractivity for a logistic equation with piecewise contant argument"Nonlinear Differential Equations and Aplications. (in press).
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[文献書誌] W. Ma, T. Hara and Y. Takeuchi: "Stability of a 2-dimensional neural network with time delays"Journal of Biological Systems. (in press).
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[文献書誌] T. Sakata: "Stability Sets for Linear Differential Difference Equations with two delays"Dynamic Systems and Applications. (in press).
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[文献書誌] Y. Takeuchi, W. Ma and E. Beretta: "Global asymtotic properties of a delay SIR epidemic model with varying population size and finite incubation times"Nonlinear Analysis. (in press).
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[文献書誌] J. Sugie: "Uniqueness of limit cycles in a predator-prey system of Holling-type functional response"Quart. Appl. Math.. (in press).