10:30 a.m. On the addressing problem for triangular graphs. S. Cioaba, University of Delaware
R. Elzinga, Info-Tech Research Group
M. Markiewitz, University of Delaware
K. Vander Meulen*, Redeemer University College
T. Vanderwoerd, Redeemer University College
(1125-15-1482)
3:00 p.m. The Eigenvalues of the Graphs $D(4,q)$. G. Eric Moorhouse, Department of Mathematics, University of Wyoming
Shuying Sun*, Department of Mathematical Sciences, University of Delaware
Jason Williford, Department of Mathematics, University of Wyoming
(1125-05-225)
5:00 p.m. Signed graphs with maximum nullity at most two. Marina Arav*, Georgia State University
Frank Hall, Georgia State University
Hein van der Holst, Georgia State University
Zongshan Li, Georgia State University
(1125-15-2169)
5:30 p.m. Essential sign change numbers of full sign pattern matrices. Xiaofeng Chen, Chongqing Jiaotong University
Wei Fang, North University of China
Wei Gao, Auburn University
Yubin Gao, North University of China
Guangming Jing, Georgia State University
Zhongshan Li*, Georgia State University
Yanling Shao, North University of China
Lihua Zhang, Georgia State University
(1125-15-2042)