In this paper, we show the positive solutions set for one-dimensional $ p $-Laplacian problem with sign-changing weight contains a reversed $ S $-shaped continuum. By figuring the shape of unbounded continuum of positive solutions, we identify the interval of bifurcation parameter in which the $ p $-Laplacian problem has one or two or three positive solutions according to the asymptotic behavior of nonlinear term at 0 and $ \infty $. The proof of the main result is based upon bifurcation technique.
Citation: Liangying Miao, Man Xu, Zhiqian He. Existence and multiplicity of positive solutions for one-dimensional $ p $-Laplacian problem with sign-changing weight[J]. Electronic Research Archive, 2023, 31(6): 3086-3096. doi: 10.3934/era.2023156
In this paper, we show the positive solutions set for one-dimensional $ p $-Laplacian problem with sign-changing weight contains a reversed $ S $-shaped continuum. By figuring the shape of unbounded continuum of positive solutions, we identify the interval of bifurcation parameter in which the $ p $-Laplacian problem has one or two or three positive solutions according to the asymptotic behavior of nonlinear term at 0 and $ \infty $. The proof of the main result is based upon bifurcation technique.
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