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[文献書誌] T.Hara: "The asymptotic stability and star shaped periodic solutions for delay differential system" Nonlinear Analysis. 30. 4555-4563 (1997)
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[文献書誌] J.Sugie and T.Hara: "Oscillatory solutions and rotatory solutions for a periodically forced Lienard systems" Differential and Integral Equations. 10. 717-738 (1997)
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[文献書誌] T.Hara,R.Miyazaki and T.Morii: "Asymptotic stability condition for linear differential-differnce equations with N delays" Dynamic Systems and Applications. 6. 493-506 (1997)
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[文献書誌] J.Sugie,R.Kohno and R.Miyazaki: "On a predator-prey system of Holling type" Proceedings of the American Mathematical Society. 125. 2041-2050 (1997)
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[文献書誌] R.Miyazaki: "Characteristic eqution and asymptotic behavior of delay-differential equation" Funkcialaj Ekvacioj. 40. 471-481 (1997)
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[文献書誌] J.Sugie: "Two-parameter bifurcation in a predator-prey system of Ivlev type" Journal of Mathematical Analysis and Applications. 217. 349-371 (1998)
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[文献書誌] T.Hara,R.Miyazaki and T.Matsumi: "Exponential asymptotic stability in linear delay-differential equations with variable coefficients" Differential and Integral Equations. (in press).
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[文献書誌] J.Sugie,D.-L.Chen and H.Matsunaga: "On global asymptotic stability of systems of Lienard type" Journal of Mathematical Analysis and Applications. (in press).