Martin E. Dyer, Leslie Ann Goldberg, Mike Paterson. On Counting Homomorphisms to Directed Acyclic Graphs. In Michele Bugliesi, Bart Preneel, Vladimiro Sassone, Ingo Wegener, editors, Automata, Languages and Programming, 33rd International Colloquium, ICALP 2006, Venice, Italy, July 10-14, 2006, Proceedings, Part I. Volume 4051 of Lecture Notes in Computer Science, pages 38-49, Springer, 2006. [doi]
Abstract is missing.