In this paper, we construct the pseudo-gradient vector field in W-0(1,p)(Omega), by which we obtain the positive and negative cones of W-0(1,p)(Omega) are both invariant sets of the descent flow of the corresponding functional. Then we use differential equations theory in Banach spaces and dynamics theory to study p-Laplacian boundary value problems with "jumping" nonlinearities at zero or infinity, and get new multiple solutions and sign-changing solutions theorems of p-Laplacian. (C) 2002 Elsevier Science (USA). All rights reserved.
机构:
Northeast Normal Univ, Sch Math & Stat, Changchun 130024, Jilin, Peoples R China
Northeast Normal Univ, Ctr Math & Interdisciplinary Sci, Changchun 130024, Jilin, Peoples R ChinaNortheast Normal Univ, Sch Math & Stat, Changchun 130024, Jilin, Peoples R China
Chang, Xiaojun
Nie, Zhaohu
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机构:
Utah State Univ, Dept Math & Stat, Logan, UT 84322 USANortheast Normal Univ, Sch Math & Stat, Changchun 130024, Jilin, Peoples R China
Nie, Zhaohu
Wang, Zhi-Qiang
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机构:
Utah State Univ, Dept Math & Stat, Logan, UT 84322 USA
Tianjin Univ, Ctr Appl Math, Tianjin 300072, Peoples R ChinaNortheast Normal Univ, Sch Math & Stat, Changchun 130024, Jilin, Peoples R China
机构:
Henan Polytech Univ, Dept Math, Jiaozuo 454000, Peoples R China
SE Univ, Dept Math, Nanjing 210018, Peoples R ChinaHenan Polytech Univ, Dept Math, Jiaozuo 454000, Peoples R China
Yang, Guoying
Wang, Mingxin
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SE Univ, Dept Math, Nanjing 210018, Peoples R ChinaHenan Polytech Univ, Dept Math, Jiaozuo 454000, Peoples R China