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Vulpe Nicolae
Cuvinte-cheie (42): Group action (7), affine invariant polynomial (7), quadratic differential system (7)
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Articole în reviste din RM - 6. Publicaţii la conferinţe din RM - 8. Publicaţii peste hotare - 3.
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2021 - 2

Abel quadratic differential systems of second kind
Artes Joan1, Schlomiuk Dana2, Vulpe Nicolae3
1 Universitat Autònoma de Barcelona,
2 Université de Montréal,
3 Vladimir Andrunakievich Institute of Mathematics and Computer Science
Actual Problems of Mathematics and Informatics
2021. Chişinău. ISBN 978-9975-45-677-7.
Disponibil online 25 June, 2021. Descarcări-0. Vizualizări-17
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One class of quadratic di®erential systems with two invariant lines
Bujac Cristina1, Schlomiuk Dana2, Vulpe Nicolae1
1 Vladimir Andrunakievich Institute of Mathematics and Computer Science,
2 Université de Montréal
Mathematics and IT: Research and Education
2021. Chișinău, Republica Moldova. .
Disponibil online 29 June, 2021. Descarcări-0. Vizualizări-22
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2020 - 1

Global Topological Configurations of Singularities for the Whole Family of Quadratic Differential Systems
Artes Joan1, Llibre Jaume1, Schlomiuk Dana2, Vulpe Nicolae3
1 Universitat Autònoma de Barcelona,
2 Université de Montréal,
3 Vladimir Andrunakievich Institute of Mathematics and Computer Science
Qualitative Theory of Dynamical Systems
Nr. 1(19) / 2020 / ISSN 1575-5460 / ISSNe 1662-3592
Disponibil online 6 March, 2020. Descarcări-0. Vizualizări-396
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2019 - 2

Configurations of invariant straight lines of the type (2, 2, 1, 1) for a family of cubic systems
Bujac Cristina1, Schlomiuk Dana2, Vulpe Nicolae1
1 Vladimir Andrunakievich Institute of Mathematics and Computer Science,
2 Université de Montréal
Proceedings IMCS-55The Fifth Conference of Mathematical Society of the Republic of Moldova
2019. Chișinău, Republica Moldova. ISBN 978-9975-68-378-4.
Disponibil online 1 November, 2019. Descarcări-1. Vizualizări-326
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The topological classification of a family of quadratic differential systems in terms of affine invariant polynomials
Schlomiuk Dana1, Vulpe Nicolae2
1 Université de Montréal,
2 Vladimir Andrunakievich Institute of Mathematics and Computer Science
Buletinul Academiei de Ştiinţe a Moldovei. Matematica
Nr. 2(90) / 2019 / ISSN 1024-7696
Disponibil online 3 January, 2020. Descarcări-1. Vizualizări-334
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2017 - 4

Classification of quadratic systems possessing an invariant conic and a Darboux invariant
Vulpe Nicolae1, Schlomiuk Dana2
1 Institute of Mathematics and Computer Science ASM,
2 Université de Montréal
Conference of Mathematical Society of the Republic of Moldova
4. 2017. Chişinău. ISBN 978-9975-71-915-5.
Disponibil online 5 October, 2017. Descarcări-0. Vizualizări-350
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Cubic Differential Systems with Invariant Straight Lines of Total Multiplicity Eight possessing One Infinite Singularity
Bujac Cristina, Vulpe Nicolae
Institute of Mathematics and Computer Science ASM
Qualitative Theory of Dynamical Systems
Nr. 1(16) / 2017 / ISSN 1575-5460 / ISSNe 1662-3592
Disponibil online 10 July, 2018. Descarcări-1. Vizualizări-261
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Geometric and algebraic classification of quadratic differential systems with invariant hyperbolas
Oliveira Regilene D. S.1, Rezende Alex C.2, Schlomiuk Dana3, Vulpe Nicolae4
1 Universidade Federal de Sao Paulo,
2 Universidade Federal de Santa Maria,
3 Université de Montréal,
4 Institute of Mathematics and Computer Science ASM
Electronic Journal of Differential Equations
Nr. 2017 / 2017 / ISSN 1072-6691
Disponibil online 5 September, 2018. Descarcări-0. Vizualizări-417
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Phase portraits of cubic differential systems with invariant straight lines of total multiplicity eight
Bujac Cristina, Vulpe Nicolae
Institute of Mathematics and Computer Science ASM
Conference of Mathematical Society of the Republic of Moldova
4. 2017. Chişinău. ISBN 978-9975-71-915-5.
Disponibil online 5 October, 2017. Descarcări-3. Vizualizări-346
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2014 - 3

Bifurcation diagrams and quotient topological spaces under the action of the affine group on a subclass of quadratic vector fields
Diaconescu Oxana1, Schlomiuk Dana1, Vulpe Nicolae2
1 Université de Montréal,
2 Institute of Mathematics and Computer Science ASM
Conference of Mathematical Society of the Republic of Moldova
3. 2014. Chișinău. ISBN 978-9975-68-244-2.
Disponibil online 9 October, 2017. Descarcări-0. Vizualizări-299
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Family of quadratic differential systems with invariant hyperbolas
Oliveira Regilene D. S.1, Rezende Alex C.1, Vulpe Nicolae2
1 Instituto de Ciencia de Materiales, CSIC,
2 Institute of Mathematics and Computer Science ASM
Conference of Mathematical Society of the Republic of Moldova
3. 2014. Chișinău. ISBN 978-9975-68-244-2.
Disponibil online 9 October, 2017. Descarcări-4. Vizualizări-355
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Global configurations of singularities for quadratic differential systems with total finite multiplicity three and at most two real singularities
Artes Joan1, Llibre Jaume1, Schlomiuk Dana2, Vulpe Nicolae3
1 Universitat Autònoma de Barcelona,
2 Université de Montréal,
3 Institute of Mathematics and Computer Science ASM
Conference of Mathematical Society of the Republic of Moldova
3. 2014. Chișinău. ISBN 978-9975-68-244-2.
Disponibil online 9 October, 2017. Descarcări-0. Vizualizări-473
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2013 - 2

Geometric configurations of singularities for quadratic differential systems with total finite multiplicity lower than 2
Artes Joan1, Llibre Jaume1, Schlomiuk Dana2, Vulpe Nicolae3
1 Universitat Autònoma de Barcelona,
2 Université de Montréal,
3 Institute of Mathematics and Computer Science ASM
Buletinul Academiei de Ştiinţe a Moldovei. Matematica
Nr. 1(71) / 2013 / ISSN 1024-7696
Disponibil online 13 December, 2013. Descarcări-4. Vizualizări-744
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Modele matematice de expertiză în domenii ştiinţifice
Arnăut Vsevolod1, Gaindric Constantin2, Damian Florin2, Magariu Galina2, Rogojin Iurie2, Secrieru Iulian2, Verlan Tatiana2, Vulpe Nicolae2
1 Universitatea de Stat din Moldova,
2 Institutul de Matematică şi Informatică al AŞM
Revista de Ştiinţă, Inovare, Cultură şi Artă „Akademos”
Nr. 2(29) / 2013 / ISSN 1857-0461
Disponibil online 16 December, 2013. Descarcări-20. Vizualizări-931
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2009 - 1

A complete classification of quadratic differential systems according to the dimensions of Aff(2, R)−orbits
Gherştega Natalia, Orlov Victor, Vulpe Nicolae
Institute of Mathematics and Computer Science ASM
Buletinul Academiei de Ştiinţe a Moldovei. Matematica
Nr. 2(60) / 2009 / ISSN 1024-7696
Disponibil online 16 December, 2013. Descarcări-0. Vizualizări-646
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2008 - 1

Integrals and phase portraits of planar quadratic differential systems with invariant lines of total multiplicity four
Schlomiuk Dana, Vulpe Nicolae
Institute of Mathematics and Computer Science ASM
Buletinul Academiei de Ştiinţe a Moldovei. Matematica
Nr. 1(56) / 2008 / ISSN 1024-7696
Disponibil online 6 December, 2013. Descarcări-3. Vizualizări-756
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2003 - 1

Classification of quadratic systems with a symmetry center and simple infinite singular points
Vulpe Nicolae, Lupan Mircea
Institute of Mathematics and Computer Science ASM
Buletinul Academiei de Ştiinţe a Moldovei. Matematica
Nr. 1(41) / 2003 / ISSN 1024-7696
Disponibil online 6 December, 2013. Descarcări-1. Vizualizări-612
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