Grava, Tamara; Kapaev, Andrei; Klein, Christian
(SISSA, 2014-01-15)
For equation P$_I^2$, the second member in the P$_I$ hierarchy, we prove existence of various degenerate solutions depending on the complex parameter $t$ and evaluate the asymptotics in the complex $x$ plane for $|x|\to\infty$ ...