On two classes of simultaneous pell equations with no solutionsWALSH, P. G.Mathematics of computation. 1999, Vol 68, Num 225, pp 385-388, issn 0025-5718Article

Periodic solutions of impulsive systems with a small delayBAINOV, D. D; COVACHEV, V. C.Journal of physics. A, mathematical and general. 1994, Vol 27, Num 16, pp 5551-5563, issn 0305-4470Article

Is quenching in infinite time possible?FILA, M; KAWOHL, B.Quarterly of applied mathematics. 1990, Vol 48, Num 3, pp 531-534, issn 0033-569XArticle

On the dependence of solutions upon the right hand side of an ordinary differential equationKNOBLOCH, H. W.Aequationes mathematicae (Printed ed.). 1988, Vol 35, Num 2-3, pp 140-163, issn 0001-9054Article

Some quadratic systems with a separatrix cycle surrounding a limit cycleHOLMES, C. A.Journal of the London Mathematical Society. 1988, Vol 37, Num 3, pp 545-551, issn 0024-6107Article

On the asymptotic equivalence of systems with impulse effectSIMEONOV, P. S; BAINOV, D. D.Journal of mathematical analysis and applications. 1988, Vol 135, Num 2, pp 591-610, issn 0022-247XArticle

Degenerate Hopf bifurcation formulas and Hilbert's 16th problemFARR, W. W; CHENGZHI LI; LABOURIAU, I. S et al.SIAM journal on mathematical analysis. 1989, Vol 20, Num 1, pp 13-30, issn 0036-1410Article

Stability of linear systems of differential equations with variable structure and impulse effectMILEV, N. V; BAINOV, D. D.Mathematical methods in the applied sciences. 1989, Vol 11, Num 2, pp 271-278, issn 0170-4214Article

Transition systemsMISCHAIKOW, K.Proceedings of the Royal Society of Edinburgh. Section A. Mathematics. 1989, Vol 112, Num 1-2, pp 155-175, issn 0308-2105Article

Stability with respect to part of the variables in systems with impulse effectSIMEONOV, P. S; BAINOV, D. D.Journal of mathematical analysis and applications. 1987, Vol 124, Num 2, pp 547-560, issn 0022-247XArticle

Novel types of factorisable systems of differential equationsHUMI, M.Journal of physics. A, mathematical and general. 1987, Vol 20, Num 6, pp 1323-1331, issn 0305-4470Article

Bezout number calculations for multi-homogeneous polynomial systemsWAMPLER, C. W.Applied mathematics and computation. 1992, Vol 51, Num 2-3, pp 143-157, issn 0096-3003Article

Non-stationary dynamics of train and flexible track over inertial foundation during variable velocity runsYADAV, D; UPADHYAY, H. C.Journal of sound and vibration. 1991, Vol 147, Num 1, pp 57-71, issn 0022-460XArticle

Asymptotics for solutions of systems of smooth recurrence equationsBAULDRY, W. C; MATE, A; NEVAI, P et al.Pacific journal of mathematics. 1988, Vol 133, Num 2, pp 209-227, issn 0030-8730Article

Analytical reduction of different systemsKLARES, B.Funkcialaj Ekvacioj. 1988, Vol 31, Num 3, pp 397-409, issn 0532-8721Article

On exponential stability of infinite dimensional linear systems with bounded or unbounded perturbationsPENG LI; AHMED, N. U.Applicable analysis (Print). 1988, Vol 30, Num 1-3, pp 175-187, issn 0003-6811Article

Convolution operators in a fading memory space: the critical caseJORDAN, G. S; STAFFANS, O. J; WHEELER, R. L et al.SIAM journal on mathematical analysis. 1987, Vol 18, Num 2, pp 366-386, issn 0036-1410Article

Steady state bifurcations and exact multiplicity conditions via Carleman linearizationTSILIGIANNIS, C. A; LYBERATOS, G.Journal of mathematical analysis and applications. 1987, Vol 126, Num 1, pp 143-160, issn 0022-247XArticle

Hidden symmetries and integrable hierarchy of the N = 4 supersymmetric yang-mills equationsPOPOV, Alexander D; WOLF, Martin.Communications in mathematical physics. 2007, Vol 275, Num 3, pp 685-708, issn 0010-3616, 24 p.Article

Fast and simple nested fixpointsSEIDL, H.Information processing letters. 1996, Vol 59, Num 6, pp 303-308, issn 0020-0190Article

Polynomial operator matrices as semigroup generators: The 2×2 caseENGEL, K. J.Mathematische Annalen. 1989, Vol 284, Num 4, pp 563-576, issn 0025-5831Article

Uniqueness of periodic orbits of some vector fields with codimension two singularitiesSHUI-NEE CHOW; CHENGZHI LI; DUO WANG et al.Journal of differential equations (Print). 1989, Vol 77, Num 2, pp 231-253, issn 0022-0396Article

(h₀, h, M₀)-stability for integro-differential equationsLEELA, S; RAMA MOHANA RAO, M.Journal of mathematical analysis and applications. 1988, Vol 130, Num 2, pp 460-466, issn 0022-247XArticle

Generalization of the theory of coupled differential equationsCAO XUAN CHUAN.Journal of physics. A, mathematical and general. 1988, Vol 21, Num 3, pp 617-624, issn 0305-4470Article

Internal Newton operators for function stripsKRAWCZYK, R; NEUMAIER, A.Journal of mathematical analysis and applications. 1987, Vol 124, Num 1, pp 52-72, issn 0022-247XArticle