This paper concerns the fourth-order three-point boundary value problem (BVP) \[ u^{\left(4\right)}\left(t\right)=f\left(t,u\left(t\right)\right),\quad t\in\left[0,1\right], \] \[ u'\left(0\right)=u''\left(0\right)=u\left(1\right)=0,\;\alpha u''\left(1\right)-u'''\left(\eta\right)=0, \] where $f\in C\left(\left[0,1\right]\times\left[0,+\infty\right),\left[0,+\infty\right)\right)$, $\alpha\in\left[0,1\right)$ and $\eta\in\left[\frac{2\alpha+10}{15-2\alpha},1\right)$. Although the corresponding Green\textquoteright s function is sign-changing, we still obtain the existence of at least two positive and decreasing solutions under some suitable conditions on $f$ by applying the two-fixed-point theorem due to Avery and Henderson. An example is also given to illustrate the main results.
two positive solutions Completely continuous fourth-order boundary value problem Green\textquoteright s function two positive solutions
Birincil Dil | İngilizce |
---|---|
Konular | Matematik |
Bölüm | Articles |
Yazarlar | |
Yayımlanma Tarihi | 22 Mart 2019 |
Gönderilme Tarihi | 10 Ağustos 2018 |
Kabul Tarihi | 21 Ocak 2019 |
Yayımlandığı Sayı | Yıl 2019 Cilt: 2 Sayı: 1 |
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