SEMINARIO CRUZ DEL SUR
AUTOMORPHISMS OF GRAPHS AND RIEMANN SURFACES
Lunes 16 de Noviembre del 2015. Auditorio Prof. Manuel López Ramírez. Dpto. de Matemática y Estadística UFRO.
Conferencista: ALEXANDER MEDNYKH (Novosibirsk y Krasnoyarsk)
We give a short survey of old and new results about automorphism groups and branched coverings of graphs. The latter notion was introduced independently by T. D. Parsons, T. Pisanski, P. Jackson (1980), H. Urakawa (2000), B. Baker, S. Norine (2009) and others. The branched covering of graphs are also known as harmonic maps or vertically holomorphic maps of graphs.