Další formáty:
BibTeX
LaTeX
RIS
@article{1356170, author = {Řehák, Pavel}, article_number = {267}, keywords = {half-linear differential equation; nonoscillatory solution; regular variation; asymptotic formula}, language = {eng}, issn = {1072-6691}, journal = {Electron. J. Diff. Equations}, title = {On some methods in half-linear asymptotic theory}, volume = {2016}, year = {2016} }
TY - JOUR ID - 1356170 AU - Řehák, Pavel PY - 2016 TI - On some methods in half-linear asymptotic theory JF - Electron. J. Diff. Equations VL - 2016 IS - 267 SP - 1-27 EP - 1-27 PB - State University and the University of North Texas SN - 10726691 KW - half-linear differential equation KW - nonoscillatory solution KW - regular variation KW - asymptotic formula N2 - We study asymptotic behavior of eventually positive solutions of the second-order half-linear differential equation $(r(t)|y'|^{\alpha-1}\sgn y')'=p(t)|y|^{\alpha-1}\sgn y$, where $r(t)$ and $p(t)$ are positive continuous functions on $[a,\infty)$, $\alpha\in(1,\infty)$. The aim of this paper is twofold. On the one hand, we show applications of a wide variety of tools, like the Karamata theory of regular variation, the de Haan theory, the Riccati technique, comparison theorems, the reciprocity principle, a certain transformation of dependent variable, and principal solutions. On the other hand, we solve open problems posed in the literature and generalize existing results. The most of our observations is new also in the linear case. ER -
ŘEHÁK, Pavel. On some methods in half-linear asymptotic theory. \textit{Electron. J. Diff. Equations}. State University and the University of North Texas, 2016, roč.~2016, č.~267, s.~1-27. ISSN~1072-6691.
|