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Causal difference equations with upper and lower solutions in the reverse order

Crossref DOI link: https://doi.org/10.1186/s13662-019-2078-4

Published Online: 2019-04-11

Published Print: 2019-12

Update policy: https://doi.org/10.1007/springer_crossmark_policy

Authors

Wang, Wen-Li

Tian, Jing-Feng
Funding

Funding for this research was provided by:

the Fundamental Research Funds for the Central Universities (2015ZD29)

the Higher School Science Research Funds of Hebei Province of China (Z2015137)
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Article History

Received: 26 April 2018

Accepted: 2 April 2019

First Online: 11 April 2019

Competing interests

: The authors declare that there is no conflict of interests regarding the publication of this paper.