Li, Tongxing
Pintus, Nicola
Viglialoro, Giuseppe
Funding for this research was provided by:
Fondazione Banco di Sardegna (Integro-dierential Equations and Non-Local Problems)
NNSF of P.R. China (Grant No. 61503171)
CPSF (Grant No. 2015M582091)
NSF of Shandong Province (Grant No. ZR2016JL021)
DSRF of Linyi University (Grant No. LYDX2015BS001)
AMEP of Linyi University (P.R. China)
Article History
Received: 7 September 2018
Revised: 1 February 2019
First Online: 20 May 2019
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest.