English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In this paper, we study the existence of periodic solutions for Rayleigh equation with a singularity of repulsive type $$xu0027u0027(t)+fbigl(xu0027(t)bigr)+varphi (t)x(t)-frac{1}{x^{alpha }(t)}=p(t), $$where (alpha geqslant 1) is a constant, and φ and p are T-periodic functions. The proof of the main result relies on a known continuation theorem of coincidence degree theory. The interesting point is that the sign of the function (varphi (t)) is allowed to change for (tin [0,T]).

A new result on the existence of periodic solutions for Rayleigh equation with a singularity