We give a global description of the branches of positive solutions of second order periodic boundary value problems u '' - q(t)u + lambda a(t)f(u) = 0, 0 < t <2 pi, u(0) = u(2 pi), u'(0) = u'(2 pi) which are not necessarily linearizable. Our approach based on topological degree and global bifurcation techniques.
机构:
Northwest Normal Univ, Dept Math, 967 Anning East Rd, Lanzhou 730070, Gansu, Peoples R ChinaNorthwest Normal Univ, Dept Math, 967 Anning East Rd, Lanzhou 730070, Gansu, Peoples R China
He, Zhiqian
Ma, Ruyun
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Northwest Normal Univ, Dept Math, 967 Anning East Rd, Lanzhou 730070, Gansu, Peoples R ChinaNorthwest Normal Univ, Dept Math, 967 Anning East Rd, Lanzhou 730070, Gansu, Peoples R China
Ma, Ruyun
Xu, Man
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Northwest Normal Univ, Dept Math, 967 Anning East Rd, Lanzhou 730070, Gansu, Peoples R ChinaNorthwest Normal Univ, Dept Math, 967 Anning East Rd, Lanzhou 730070, Gansu, Peoples R China