Afișare rezultate

Darboux integrability of a cubic differential system with two parallel invariant straight lines

Cozma Dumitru

Tiraspol State University

Carpathian Journal of Mathematics

Nr. / 2022 / ISSN 1584-2851 /ISSNe 1843-4401

Disponibil online 16 December, 2021. Descarcări-0. Vizualizări-393

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The problem of the centre for cubic systems with two parallel invariant straight lines and one invariant conic

Cozma Dumitru

Tiraspol State University

Nonlinear Differential Equations and Applications NoDEA

Nr. / 2009 / ISSN 1021-9722 /ISSNe 1420-9004

Disponibil online 13 September, 2023. Descarcări-0. Vizualizări-82

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Partial integrals and the first focal value in the problem of centre

Cozma Dumitru1, Şubă Alexandru2

1 Tiraspol State University, 2 Moldova State University

Nonlinear Differential Equations and Applications NoDEA

Nr. / 1995 / ISSN 1021-9722 /ISSNe 1420-9004

Disponibil online 13 September, 2023. Descarcări-0. Vizualizări-86

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Solution of the problem of the centre for cubic differential system with three invariant straight lines in generic position

Şubă Alexandru1, Cozma Dumitru2

1 Moldova State University, 2 Tiraspol State University

Qualitative Theory of Dynamical Systems

Nr. / 2005 / ISSN 1575-5460 /ISSNe 1662-3592

Disponibil online 13 September, 2023. Descarcări-1. Vizualizări-136

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