Invited Speakers - The 20th Workshop on Topological Graph Theory

Dan Archdeacon (The University of Vermont, USA): Superthrackles; (view abstract as PDF file)
Mark Ellingham (Vanderbilt University, USA): Transition graphs and some applications; (view abstract as PDF file)
Jason Z. Gao (Charleton University, Canada): Enumerative properties of circuit graphs and chromatic properties of random surface maps; (view abstract as PDF file)
Petr Hlineny (Masaryk University, Czech Republic): 20 years of Negami's planar cover conjecture; (view abstract as PDF file)
Serge Lawrencenko (Moscow Institute of Steel and Alloys, Russia): Generalized polyhedral suspensions; (view abstract as PDF file)
Bojan Mohar(Simon Fraser Univ., Canada & Univ. of Ljubljana, Slovenia): Crossing number of graphs on surfaces; (view abstract as PDF file)
Josef Siran (STU Bratislava and Open University): Highly symmetric maps on surfaces; (view abstract as PDF file)

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