Lista publicaţiilor: Popa Mihail Nicolai - 34

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

Neagu Natalia , Orlov Victor Mihai, Popa Mihail Nicolai

1 "Ion Creangă" State Pedagogical University from Chisinau, 2 Technical University of Moldova, 3 Institute of Mathematics and Computer Science ASM

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 Mihai, Popa Mihail Nicolai

1 Technical University of Moldova, 2 Institute of Mathematics and Computer Science ASM

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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2016 - 1

Prolonged holding and cyclic loading indentation of aluminophosphate glass: kinetics of deformation

Răzlog (Belei) Ina Ion, Şikimaka Olga Alexei, Grabco Daria, Sava Bogdan Alexandru , Boroica Lucica , Elişa Mihail , Pyrtsac Constantin, Prisăcaru Andrian Anatolie, Popa Mihail Nicolai

1 Institute of Applied Physics, Academy of Sciences of Moldova, 2 National Institute for Laser, Plasma and Radiation Physics (INFLPR), 3 National Institute for Optoelectronics INOE2000, Magurele

Materials Science and Condensed Matter Physics

Editia 8. 2016. Chişinău. Institutul de Fizică Aplicată. 185-185.

Disponibil online 30 July, 2019

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2015 - 1

Algebraic methods to the center-focus problem

Popa Mihail Nicolai, Pricop Victor Vasile

1 Institute of Mathematics and Computer Science ASM, 2 "Ion Creangă" State Pedagogical University from Chisinau

Învățămîntul superior din Republica Moldova la 85 de ani

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

Disponibil online 24 July, 2019

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2014 - 2

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

Neagu Natalia , Popa Mihail Nicolai, Orlov Victor Mihai

1 "Ion Creangă" State Pedagogical University from Chisinau, 2 Institute of Mathematics and Computer Science ASM, 3 Technical University of Moldova

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

Popa Mihail Nicolai, Pricop Victor Vasile

1 Institute of Mathematics and Computer Science ASM, 2 "Ion Creangă" State Pedagogical University from Chisinau

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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2013 - 1

Applications of algebraic methods in solving the center-focus problem

Popa Mihail Nicolai, Pricop Victor Vasile

Institute of Mathematics and Computer Science ASM

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 Nicolae, Popa Mihail Nicolai, Pricop Victor Vasile

Institute of Mathematics and Computer Science ASM

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 Nicolae, Popa Mihail Nicolai, Pricop Victor Vasile

Institute of Mathematics and Computer Science ASM

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 Nicolai, Orlov Victor Mihai

Institute of Mathematics and Computer Science ASM

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 Simion, Popa Mihail Nicolai

Institute of Mathematics and Computer Science ASM

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

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

Gherştega Natalia Nicolae, Popa Mihail Nicolai

1 Tiraspol State University, 2 Institute of Mathematics and Computer Science ASM

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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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 Nicolai, Bycova Elena V., Staruş Elena , Gherştega Natalia Nicolae

1 Institute of Mathematics and Computer Science ASM, 2 Institute of Power Engineering of ASM, 3 Tiraspol State University

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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2003 - 1

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

Popa Mihail Nicolai, Georgescu Adelina , Rocsoreanu Carmen

1 Institute of Mathematics and Computer Science ASM, 2 University of Pitesti, 3 University of Craiova

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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