EXISTENCE OF SOLUTIONS TO ASYMPTOTICALLY PERIODIC SCHRÖDINGER EQUATIONS

EXISTENCE OF SOLUTIONS TO ASYMPTOTICALLY PERIODIC SCHRÖDINGER EQUATIONS
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DOI:
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发表时间:
2017
期刊:
Journal of Physics D: Applied Physics
影响因子:
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通讯作者:
M. Furtado
M. Furtado
中科院分区:
其他
文献类型:
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作者:
M. Furtado

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本文证明了半线性薛定谔方程− Vu + V(x)u = f(x,u)非零解的存在性.电势V是周期性的,0属于σ(− V + V)的间隙。函数f是超线性的,并且关于x变量是渐近周期的。在证明中,我们应用了文[3]中证明的强不定泛函的一个新的临界点定理。
We show the existence of a nonzero solution for the semilinear Schrödinger equation −∆u + V (x)u = f(x, u). The potential V is periodic and 0 belongs to a gap of σ(−∆ + V ). The function f is superlinear and asymptotically periodic with respect to x variable. In the proof we apply a new critical point theorem for strongly indefinite functionals proved in [3].