○ Riordan Group Seminar
April 25 (Wednesday)
13:30-14:20 Ji-Hwan Jung, Competition graphs of oriented Riordan graphs
14:20-15:10 Seyed A. Mojallal, Counting independent sets of (Riordan) graphs
15:20-16:10 Bumtle Kang, Some graph variables on Riordan graphs
16:10-17:00 Minho Song, Commutator subgroup of the Riordan group