Lake Superior Seminar on Graphs, Algebra and Combinatorics


or GRATKO for short, is organized by the joint discrete math group of

GRATKO seminar is held alternatively at UMD and UWS. If you would like to give a talk, please contact us.

Spring 2014
5:00-6:00PM
Located in 130 Solon Campus Center at UMD, or 3009 Swenson Hall at UWS


  • Feb 27 (Thursday) at UWS:  Steven Rosenberg, Symmetry groups of orthogonal arrays
  • Mar 13 (Thursday):  Cancelled.
  • April 10 (Thursday) at UMD:  Xiaofeng Gu, Eigenvalues and k-factors in regular graphs
  • Apr 24 (Thursday):
  • May 8 (Thursday) at UMD: Dalibor Froncek, Decompositions of complete bipartite graphs into generalized prisms






Fall 2013
5:30-6:30PM Tuesday
Located in 130 Solon Campus Center at UMD, or 3009 Swenson Hall at UWS


date
Place
Speaker
                                                                        Title
Nov. 12
UMD
Ondrej Zjevik
On symmetric chain decomposition of partially ordered sets
Oct. 29
UWS
Inne Singgih
DNA graph characterization for line digraph of dicycle with  one chord
Oct. 15
UMD
Xiaofeng Gu
Edge-disjoint spanning trees and eigenvalues of graphs