Afiliat la Institutul de Matematică şi Informatică "Vladimir Andrunachievici"

2023 - 2

Sisteme diferențiale pătratice ce au linia de la infinit de multiplicitate maximală

Şubă Alexandru

Science and education: new approaches and perspectives

Seria 25, Vol.3. 2023. Chişinău. (CEP UPSC. 306-310.

Disponibil online 29 October, 2023

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Quadratic differential systems with the line at infinity of maximal multiplicity

Şubă Alexandru

Conference on Applied and Industrial MathematicsCAIM 2022

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

Disponibil online 21 March, 2024

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2022 - 3

Center problem for cubic differential systems with the line at infinity of multiplicity four

Şubă Alexandru

Carpathian Journal of Mathematics

Vol. 38, / 2022 / ISSN 1584-2851 / ISSNe 1843-4401

Disponibil online 16 December, 2021

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Classification of cubic differential systems with a linear center and the line at infinity of maximal multiplicity

Şubă Alexandru

Conference on Applied and Industrial MathematicsCAIM 2022

Ediţia a 29. 2022. Chișinău, Republica Moldova. Casa Editorial-Poligrafică „Bons Offices”. 74-75.

Disponibil online 20 December, 2022

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Centers of cubic differential systems with the line at infinity of maximal multiplicity

Şubă Alexandru

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 - 2

Real cubic differential systems with a linear center and multiple line at infinity

Şubă Alexandru

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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Centers of cubic di®erential systems with two parallel invariant straight lines of total multiplicity three

Şubă Alexandru

Mathematics and IT: Research and Education

2021. Chișinău, Republica Moldova. . 83-84.

Disponibil online 1 July, 2021

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2020 - 1

Problem of the center for cubic differential systems with invariant straight lines, including the line at infinity, of total multiplicity five

Şubă Alexandru , Turuta (Poderioghin) Silvia

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. 77-77.

Disponibil online 24 November, 2023

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2019 - 4

Center problem and classification of cubic differential systems with the line at infinity of multiplicity three and an invariant affine straight line of multiplicity two

Şubă Alexandru , Turuta (Poderioghin) Silvia

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

2019. Chișinău, Republica Moldova. "VALINEX" SRL. 150-153.

Disponibil online 28 November, 2019

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Cutreierând lumea cu invarianţii polinomiali. Membrul corespondent al AȘM Nicolae VULPE la 70 de ani

Şubă Alexandru

Revista de Ştiinţă, Inovare, Cultură şi Artă „Akademos”

Nr. 1(52) / 2019 / ISSN 1857-0461 / ISSNe 2587-3687

Disponibil online 21 May, 2019

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The problem of the center for cubic differential systems with the line at infinity and an affine real invariant straight line of total algebraic multiplicity five

Şubă Alexandru , Turuta (Poderioghin) Silvia

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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Solution of the center-focus problem for a cubic differential system with a real invariant straight line and the line at infinity of multiplicity two

Şubă Alexandru , Pîslaru Alexandru

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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2018 - 1

Cubic differential systems with affine real invariant straight lines of total parallel multiplicity six and configurations (3(m),1,1,1)

Puţuntică Vitalie , Şubă Alexandru

Acta et commentationes (Ştiinţe Exacte și ale Naturii)

Nr. 2(6) / 2018 / ISSN 2537-6284 / ISSNe 2587-3644

Disponibil online 31 July, 2019

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