ArticleOriginal scientific text

Title

On positive solutions of a class of second order nonlinear differential equations on the halfline

Authors 1

Affiliations

  1. Department of Mathematical Analysis, Faculty of Science, Palacký University, Tomkova 40, 779 06 Olomouc, Czech Republic

Abstract

The differential equation of the form (q(t)k(u)(u)a)=f(t)h(u)u, a ∈ (0,∞), is considered and solutions u with u(0) = 0 and (u(t))² + (u'(t))² > 0 on (0,∞) are studied. Theorems about existence, uniqueness, boundedness and dependence of solutions on a parameter are given.

Keywords

nonlinear second order differential equation, nonnegative solution, existence and uniqueness of solutions, bounded solution, dependence of solutions on the parameter, boundary value problem on a noncompact interval, Tikhonov-Schauder fixed point theorem

Bibliography

  1. F. A. Atkinson and L. A. Peletier, Similarity profiles of flows through porous media, Arch. Rational Mech. Anal. 42 (1971), 369-379.
  2. F. A. Atkinson and L. A. Peletier, Similarity solutions of the nonlinear diffusion equation, Arch. Rational Mech. Anal. 54 (1974), 373-392.
  3. J. Bear, D. Zaslavsky and S. Irmay, Physical Principles of Water Percolation and Seepage, UNESCO, 1968.
  4. J. Goncerzewicz, H. Marcinkowska, W. Okrasiński and K. Tabisz, On the percolation of water from a cylindrical reservoir into the surrounding soil, Zastos. Mat. 16 (1978), 249-261.
  5. P. Natanson, Theorie der Funktionen einer reellen Veränderlichen, Akademie-Verlag, Berlin, 1969.
  6. W. Okrasiński, Integral equations methods in the theory of the water percolation, in: Mathematical Methods in Fluid Mechanics, Proc. Conf. Oberwolfach, 1981, Band 24, P. Lang, Frankfurt/M, 1982, 167-176.
  7. W. Okrasiński, On a nonlinear ordinary differential equation, Ann. Polon. Math. 49 (1989), 237-245.
  8. S. Staněk, Nonnegative solutions of a class of second order nonlinear differential equations, Ann. Polon. Math. 57 (1992), 71-82.
  9. S. Staněk, Qualitative behavior of a class of second order nonlinear differential equations on the halfline, Ann. Polon. Math. 58 (1993), 65-83.
Pages:
123-142
Main language of publication
English
Received
1994-06-30
Accepted
1994-11-20
Published
1995
Exact and natural sciences