Afiliat la Institutul de Matematică şi Informatică "Vladimir Andrunachievici"

2023 - 2

Differential equations and algebras

Popa Mihail

Science and education: new approaches and perspectives. Selective collection of abstracts

Seria 25. 2023. Chişinău. (CEP UPSC. 58-59.

Disponibil online 7 November, 2023

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Differential Equations and Algebras

Popa Mihail

Conference on Applied and Industrial MathematicsCAIM 2022

Ediţia 30. 2023. Iași, România. . 7-11.

Disponibil online 21 March, 2024

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2022 - 3

Stability of unperturbed motion governed by the ternary differential system of Lyapunov-Darboux type with nonlinearities of degree four

Neagu Natalia , Popa Mihail , Orlov Victor

Acta et commentationes (Ştiinţe Exacte și ale Naturii)

Nr. 2(14) / 2022 / ISSN 2537-6284 / ISSNe 2587-3644

Disponibil online 24 February, 2023

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Stability problems of the unperturbed motion governed by the ternary differential system of Lyapunov-Darboux type with nonlinearities of degree four

Neagu Natalia , Popa Mihail

Conference on Applied and Industrial MathematicsCAIM 2022

Ediţia a 29. 2022. Chișinău, Republica Moldova. Casa Editorial-Poligrafică „Bons Offices”. 63-67.

Disponibil online 19 December, 2022

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Problems of the theory of invariants and Lie algebras applied in the qualitative theory of differential systems

Popa Mihail

Acta et commentationes (Ştiinţe Exacte și ale Naturii)

Nr. 2(14) / 2022 / ISSN 2537-6284 / ISSNe 2587-3644

Disponibil online 24 February, 2023

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2021 - 4

Stability conditions of unperturbed motion governed by critical three-dimensional differential system of Darboux type with cubic nonlinearities

Neagu Natalia , Popa Mihail

Mathematics and IT: Research and Education

2021. Chișinău, Republica Moldova. . 62-63.

Disponibil online 30 June, 2021

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Lyapunov’s stability of the unperturbed motion governed by the s3(1,3) differential system of Darboux type

Neagu Natalia , Popa Mihail

Acta et commentationes (Ştiinţe Exacte și ale Naturii)

Nr. 2(12) / 2021 / ISSN 2537-6284 / ISSNe 2587-3644

Disponibil online 10 February, 2022

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Stability conditions of unperturbed motion governed by critical three-dimensional di_erential system of Darboux type s3(1; 2; 3)

Neagu Natalia , Popa Mihail

Conference on Applied and Industrial Mathematics CAIM 2021

Ediţia a 28-a. 2021. Chișinău, Republica Moldova. Casa Editorial-Poligrafică „Bons Offices”. 21-22.

Disponibil online 20 September, 2022

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Four-dimensional reductive Lie algebra for the ternary differential system with quadratic nonlinearities and its perspectives in the study of this system

Popa Mihail , Pricop Victor

Actual Problems of Mathematics and Informatics

2021. Chişinău. Tehnica- UTM. 72-73.

Disponibil online 25 June, 2021

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2020 - 2

About an algebraic vision on the center and focus problem

Popa Mihail , Pricop Victor

Сучаснi проблеми диференцiальних рiвнянь та їх застосування Матерiали мiжнародної наукової конференцiї, присвяченої 100-рiччю вiд дня народження професора С.Д. Ейдельмана

2020. Чернiвцi. Чернівецький національний університет імені Юрія Федьковича. 62-63.

Disponibil online 24 November, 2023

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Comitants of Lie algebra of rotation groups for ternary system with quadratic nonlinearities

Popa Mihail , Pricop Victor

Învăţământ superior: tradiţii, valori, perspective Științe Exacte și ale Naturii și Didactica Științelor Exacte și ale Naturii

Vol. 1. 2020. Chișinău, Republica Moldova. Universitatea de Stat din Tiraspol. 57-60.

Disponibil online 20 November, 2020

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2019 - 4

Center-affine invariant stability conditions of unperturbed motion governed by critical cubic differential system

Neagu Natalia , Orlov Victor , Popa Mihail

Proceedings IMCS-55The Fifth Conference of Mathematical Society of the Republic of Moldova

2019. Chișinău, Republica Moldova. "VALINEX" SRL. 119-124.

Disponibil online 1 November, 2019

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Invariant conditions of stability of unperturbed motion governed by critical differential systems s(1, 2, 3)

Neagu Natalia , Orlov Victor , Popa Mihail

Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica

Nr. 2(90) / 2019 / ISSN 1024-7696 / ISSNe 2587-4322

Disponibil online 4 January, 2020

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On a case of stability of unperturbated motion governed by the ternary differential critical system with quadratic nonlinearities

Neagu Natalia , Popa Mihail

Acta et commentationes (Ştiinţe Exacte și ale Naturii)

Nr. 2(8) / 2019 / ISSN 2537-6284 / ISSNe 2587-3644

Disponibil online 29 January, 2020

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On the upper bound of the number of functionally independent focal quantities of the Lyapunov differential system

Popa Mihail , Pricop Victor

Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica

Nr. 2(90) / 2019 / ISSN 1024-7696 / ISSNe 2587-4322

Disponibil online 3 January, 2020

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2018 - 1

Invariant conditions of stability of unperturbed motion described by cubic differential system with quadratic part of Darboux type

Neagu Natalia , Orlov Victor , Popa Mihail

Conference on Applied and Industrial Mathematics CAIM 2018

Ediţia a 26-a. 2018. Chișinău, Republica Moldova. Casa Editorial-Poligrafică „Bons Offices”. 37-39.

Disponibil online 31 May, 2022

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