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Publications in Math-Net.Ru |
Citations |
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2019 |
| 1. |
Natalia Neagu, Victor Orlov, Mihail Popa, “Invariant conditions of stability of unperturbed motion governed by critical differential systems $s(1,2,3)$”, Bul. Acad. Ştiinţe Repub. Mold. Mat., 2019, no. 2, 137–153  |
| 2. |
Mihail Popa, Victor Pricop, “On the upper bound of the number of functionally independent focal quantities of the Lyapunov differential system”, Bul. Acad. Ştiinţe Repub. Mold. Mat., 2019, no. 2, 99–112 |
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2017 |
| 3. |
Natalia Neagu, Victor Orlov, Mihail Popa, “Invariant conditions of stability of unperturbed motion governed by some differential systems in the plane”, Bul. Acad. Ştiinţe Repub. Mold. Mat., 2017, no. 3, 88–106 |
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2013 |
| 4. |
M. N. Popa, V. V. Pricop, “Applications of algebraic methods in solving the center-focus problem”, Bul. Acad. Ştiinţe Repub. Mold. Mat., 2013, no. 1, 45–71  |
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2012 |
| 5. |
N. N. Gherstega, M. N. Popa, V. V. Pricop, “Generators of the algebras of invariants for differential system with homogeneous nonlinearities of odd degree”, Bul. Acad. Ştiinţe Repub. Mold. Mat., 2012, no. 2, 43–58  |
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2010 |
| 6. |
N. Gherstega, M. Popa, V. Pricop, “About characteristics of graded algebras $S_{1,4}$ and $SI_{1,4}$”, Bul. Acad. Ştiinţe Repub. Mold. Mat., 2010, no. 1, 23–32 |
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2007 |
| 7. |
E. Naidenova, M. N. Popa, V. Orlov, “Classification of $GL(2,\mathbb R)$-orbi's dimensions for the differential equations' system with homogeneities
of the 4th order”, Bul. Acad. Ştiinţe Repub. Mold. Mat., 2007, no. 1, 25–36 |
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2006 |
| 8. |
O. V. Diaconescu, M. N. Popa, “Lie algebras of operators and invariant $GL(2,\mathbb{R})$-integrals for Darboux type differential systems”, Bul. Acad. Ştiinţe Repub. Mold. Mat., 2006, no. 3, 3–16 |
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2005 |
| 9. |
Natalia Gherstega, Mihail Popa, “Lie algebras of the operators and three-dimensional polynomial differential systems”, Bul. Acad. Ştiinţe Repub. Mold. Mat., 2005, no. 2, 51–64 |
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2003 |
| 10. |
Mihail Popa, Adelina Georgescu, Carmen Rocşoreanu, “A Lie algebra of a differential generalized FitzHugh–Nagumo system”, Bul. Acad. Ştiinţe Repub. Mold. Mat., 2003, no. 1, 18–30 |
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1991 |
| 11. |
M. N. Popa, “Application of invariant processes to the study of homogeneous
linear particular integrals of a differential system”, Dokl. Akad. Nauk SSSR, 317:4 (1991), 834–839 ; Dokl. Math., 43:2 (1991), 550–555 |
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1987 |
| 12. |
M. N. Popa, K. S. Sibirskii, “Conditions for the existence of a homogeneous linear partial integral of a differential system”, Differ. Uravn., 23:8 (1987), 1324–1331 |
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1986 |
| 13. |
M. N. Popa, K. S. Sibirskii, “Focal cyclicity of critical points of a differential system”, Differ. Uravn., 22:9 (1986), 1539–1545 |
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1978 |
| 14. |
M. N. Popa, K. S. Sibirskii, “Affine classification of a system with quadratic nonlinearities and not single valued canonical form”, Differ. Uravn., 14:6 (1978), 1028–1033 |
| 15. |
Bularas Driss, M. N. Popa, “Concomitants of a system with quadratic nonlinearities”, Differ. Uravn., 14:5 (1978), 835–842 |
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1977 |
| 16. |
M. N. Popa, “Syzygies between the affine invariants of a system with quadratic right hand sides”, Differ. Uravn., 13:12 (1977), 2272–2275 |
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