Estimates of Solutions to Nonlinear Evolution Equations

Journal Title: JOURNAL OF ADVANCES IN MATHEMATICS - Year 2018, Vol 14, Issue 2

Abstract

Consider the equation                  u’(t) = A (t, u (t)),   u(0)= U0 ;   u' := du/dt     (1).   Under some assumptions on the nonlinear operator A(t,u) it is proved that problem (1) has a unique global solution and this solution satisfies the following estimate                                               ||u (t)|| < µ (t) -1     for every t belongs to R+ = [0,infinity). Here µ(t) > 0,   µ belongs to  C1 (R+), is a suitable function and the norm ||u || is the norm in a Banach space X with the property ||u (t) ||’   <=  ||u’ (t) ||.

Authors and Affiliations

Alexander G. Ramm

Keywords

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  • EP ID EP651853
  • DOI 10.24297/jam.v14i2.7445
  • Views 168
  • Downloads 0

How To Cite

Alexander G. Ramm (2018). Estimates of Solutions to Nonlinear Evolution Equations. JOURNAL OF ADVANCES IN MATHEMATICS, 14(2), 7812-7817. https://europub.co.uk/articles/-A-651853