Institutul de Matematică şi Informatică "Vladimir Andrunachievici"
Universitatea de Stat din MoldovaRO EN
On initial value problem in theory of the second order differential equations. (English)
Authors: Driuma Valeriu, Maxim Pavlov.
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Abstract
We consider the properties of the second order nonlinear differential equations b"= g(a,b,b') with the function g(a,b,b'=c) satisfying the following nonlinear partial differential equation: gaacc + 2cgabcc + 2ggaccc + c2gbbcc + 2cggbccc + g2gcccc + (ga+cgb)gccc - 4gabc - 4cgbbc - cgcgbcc - 3ggbcc - gcgacc + 4gcgbc - 3gbgcc + 6gbb = 0. Any equation b" = g(a,b,b') with this condition on the function g(a,b,b'}) has the General Integral F(a,b,x,y)=0 shared with General Integral of the second order ODE's y" = f(x,y,y') with the condition (d4f)/(dy'4) = 0 on the function f(x,y,y') or y" + a1(x,y)y'3 + 3a2(x,y)y'2 + 3a3(x,y)y' + a4(x,y) = 0 with some coefficients ai(x,y).Valerii Dryuma
Institute of Mathematics and Computer Science
Academy of Sciences of Moldova
5 Academiei str.,
Chisinau, MD-2028, Moldova
E-mail:
Maxim Pavlov
Landau ITP, RAS, Kosygina 2,
Moscow, Russia
E-mail:
Institute of Mathematics and Computer Science
Academy of Sciences of Moldova
5 Academiei str.,
Chisinau, MD-2028, Moldova
E-mail:
Maxim Pavlov
Landau ITP, RAS, Kosygina 2,
Moscow, Russia
E-mail:
Fulltext
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Contents
- Academician C.S.Sibirsky as organizer and head of the Seminar on Qualitative Theory on Differential equations.
- On Strong Stability of Linear Poisson Actions. (English)
- Algebraic equations with invariant coefficients in qualitative study of the polynomial homogeneous differential systems. (English)
- Studying stability of the equilibrium solutions in the restricted Newton's problem of four bodies. (English)
- The centre-focus problem for analytical systems of Lienard form in degenerate case. (English)
- On initial value problem in theory of the second order differential equations. (English)
- About some equations of the third order with six poles. (English)
- On rational bases of GL(2,R)-comitants of planar polynomial systems of differential equations. (English)
- Ergodic sets and mixing extensions of topological transformation semigroups. (English)
- Linear singular perturbations of hyperbolic-parabolic type. (English)
- Numerical investigation of the process of detonation waves interaction with an elastoplastic target. (English)
- Mediateca for the scientists of Moldova: results and prospects. (English)
