Solvability for Some Higher Order Multi-Point Boundary Value Problems at Resonance |
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Authors: | Sung Kag Chang Minghe Pei |
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Affiliation: | 1. Department of Mathematics, Yeungnam University, Kyongsan, 712-749, Republic of Korea 2. Department of Mathematics, Beihua University, Jilin, 132013, People’s Republic of China
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Abstract: | In this paper, by using the Mawhin’s continuation theorem, we obtain an existence theorem for some higher order multi-point boundary value problems at resonance in the following form: $$begin{array}{lll}x^{(n)}(t) = f(t,x(t),x'(t),ldots,x^{(n-1)}(t))+e(t), tin(0,1),x^{(i)}(0) = 0, i=0,1,ldots,n-1, ineq p, x^{(k)}(1) = sumlimits_{j=1}^{m-2}{beta_j}x^{(k)}(eta_j),end{array}$$ where ${f:[0,1]times mathbb{R}^n to mathbb{R}=(-infty,+infty)}$ is a continuous function, ${e(t)in L^1[0,1], p, kin{0,1,ldots,n-1}}$ are fixed, m ≥ 3 for p ≤ k (m ≥ 4 for p > k), ${beta_j in mathbb{R}, j=1,2,ldots,m-2, 0 < eta_1 < eta_2 < cdots < eta_{m-2} <1 }$ . We give an example to demonstrate our results. |
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