Operators and Matrices · Volume 3, Issue 4 Sums of Nevanlinna functions and differential equations on star-shaped graphs 03-26 Pages 451-501 DOI 10.7153/oam-03-26 Downloads Short PDF Full PDF PNG Authors Vyacheslav N. Pivovarchik Harald Woracek Keywords Nevanlinna function star-graph string equation Kirchhoff condition Subject classes 34B45 34B07 30D35 34B24
