Existence of positive solutions for second order discrete periodic boundary value problems with sign-changing Green′s function(格林函数变号时二阶离散周期边值问题正解的存在性)
运用锥上的不动点指数理论，讨论了格林函数变号时的二阶离散周期边值问题当λb(t)≡1时，该问题存在正解；当b：[1，n]Z→R+时，该问题不存在正解，其中f∈C(R+，R+)，k为满足的常数，λ为参数，，R+：=[0，∞)。
| Main Authors: | , |
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| Format: | Article |
| Language: | zho |
| Published: |
Zhejiang University Press
2022-11-01
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| Series: | Zhejiang Daxue xuebao. Lixue ban |
| Subjects: | |
| Online Access: | https://doi.org/10.3785/j.issn.1008-9497.2022.06.004 |