[Subharmonic Function, Plurisubharmonic Function, Perron Method, Fine Topology, Polar Set
http://www.amazon.com/s/ref=ntt_ath...ank&search-alias=books&field-author=Books LLC
Periodic and subharmonic solutions for superquadratic discrete
Hamiltonian systems*1
http://dx.doi.org/10.1016/j.na.2003.07.019
Subharmonic functions in strips
http://dx.doi.org/10.1016/0022-247X(82)90087-7
Chapter VII: Harmonic and Subharmonic Functions
http://dx.doi.org/10.1016/S0079-8169(08)60071-9
http://www.amazon.com/s/ref=ntt_ath...ank&search-alias=books&field-author=Books LLC
Periodic and subharmonic solutions for superquadratic discrete
Hamiltonian systems*1
http://dx.doi.org/10.1016/j.na.2003.07.019
Subharmonic functions in strips
http://dx.doi.org/10.1016/0022-247X(82)90087-7
Chapter VII: Harmonic and Subharmonic Functions
http://dx.doi.org/10.1016/S0079-8169(08)60071-9