A Class of Special Solutions for the Ultradiscrete Painlev\'e II   Equation
  A class of special solutions are constructed in an intuitive way for the ultradiscrete analog of $q$-Painlev\'e II ($q$-PII) equation. The solutions are classified into four groups depending on the function-type and the system parameter. 
Shin Isojima and Junkichi Satsuma
nlin.SI math.CA