Afiliat la Institutul de Matematică şi Informatică al AŞM

2017 - 3

Invariant conditions of stability of unperturbed motion governed by some differential systems in the plane

Neagu Natalia , Orlov Victor , Popa Mihail

Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica

Nr. 3(85) / 2017 / ISSN 1024-7696 / ISSNe 2587-4322

Disponibil online 10 February, 2018

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On periodic solutions of the four-dimensional differential system of Lyapunov-Darboux type with quadratic nonlinearities

Orlov Victor , Popa Mihail

Conference of Mathematical Society of the Republic of Moldova

4. 2017. Chişinău. Centrul Editorial-Poligrafic al USM. 311-316.

Disponibil online 5 October, 2017

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Invariant conditions of stability of unperturbed motion for differential systems with quadratic nonlinearities in the critical case

Neagu Natalia , Orlov Victor , Popa Mihail

Conference of Mathematical Society of the Republic of Moldova

4. 2017. Chişinău. Centrul Editorial-Poligrafic al USM. 301-304.

Disponibil online 5 October, 2017

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2015 - 1

Algebraic methods to the center-focus problem

Popa Mihail , Pricop Victor

Învățămîntul superior din Republica Moldova la 85 de ani Probleme actuale ale ștințelor exacte și ale naturii

Vol. 1. 2015. Chișinău, Republica Moldova. Universitatea de Stat din Tiraspol. 33-35.

Disponibil online 24 July, 2019

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2014 - 2

The upper and lower bounds for number of conditions for center of the differential system s(1; 2; :::; q)

Popa Mihail , Pricop Victor

Conference of Mathematical Society of the Republic of Moldova

3. 2014. Chișinău. "VALINEX" SRL. 265-268.

Disponibil online 9 October, 2017

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First integrals with polynomials not higher than second order of the mathematical model of the intrinsic transmission dynamics of tuberculosis

Neagu Natalia , Popa Mihail , Orlov Victor

Conference of Mathematical Society of the Republic of Moldova

3. 2014. Chișinău. "VALINEX" SRL. 257-260.

Disponibil online 9 October, 2017

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2013 - 1

Applications of algebraic methods in solving the center-focus problem

Popa Mihail , Pricop Victor

Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica

Nr. 1(71) / 2013 / ISSN 1024-7696 / ISSNe 2587-4322

Disponibil online 15 December, 2013

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2012 - 1

Generators of the algebras of invariants for differential system with homogeneous nonlinearities of odd degree

Gherştega Natalia , Popa Mihail , Pricop Victor

Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica

Nr. 2(69) / 2012 / ISSN 1024-7696 / ISSNe 2587-4322

Disponibil online 15 December, 2013

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2010 - 1

About characteristics of graded algebras S1,4 and SI1,4

Gherştega Natalia , Popa Mihail , Pricop Victor

Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica

Nr. 1(62) / 2010 / ISSN 1024-7696 / ISSNe 2587-4322

Disponibil online 15 December, 2013

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2007 - 1

Classification of GL(2,R)-orbit’s dimensions for the differential equations’ system with homogeneities of the 4th order

Naidenova Elena , Popa Mihail , Orlov Victor

Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica

Nr. 1(53) / 2007 / ISSN 1024-7696 / ISSNe 2587-4322

Disponibil online 16 December, 2013

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2006 - 1

Lie algebras of operators and invariant GL(2,R)-integrals for Darboux type differential systems

Diaconescu Oxana , Popa Mihail

Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica

Nr. 3(52) / 2006 / ISSN 1024-7696 / ISSNe 2587-4322

Disponibil online 18 December, 2015

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2005 - 2

Methods of lie algebras and orbits in the study of differential systems concerned with the problems of energy safety of the Republic of Moldova

Popa Mihail , Bîcova Elena , Staruş Elena , Gherştega Natalia

Energetica Moldovei. Aspecte regionale de dezvoltare

Ediția I. 2005. Chișinău, Republica Moldova. Institutul de Energetică al Academiei de Științe a Moldovei. 157-161.

Disponibil online 31 July, 2018

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Lie algebras of the operators and three-dimensional polynomial differential systems

Gherştega Natalia , Popa Mihail

Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica

Nr. 2(48) / 2005 / ISSN 1024-7696 / ISSNe 2587-4322

Disponibil online 7 December, 2013

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2003 - 1

A Lie algebra of a differential generalized Fitz Hugh–Nagumo system

Popa Mihail , Georgescu Adelina , Rocsoreanu Carmen

Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica

Nr. 1(41) / 2003 / ISSN 1024-7696 / ISSNe 2587-4322

Disponibil online 13 December, 2013

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