Gu, Diana
Contact Information
Research Interest
Graph theory

Dr. Gu received her Ph.D. from Louisiana State University in 1990. Her research interests includes: Graph theory, network designs, facility location on networks, and some distance problems. Resently, she has been working on permutation graphs, domination in graphs, and eccentric digraphs.
Selected Publications:
 Gu, Weizhen; Jia, Xingde; Wu, Haidong; Chords in graphs. Australas. J. Combin. 32 (2005), 117124.
 Gu, Weizhen; On central appendage number of a uniform central graph. Proceedings of the Thirtythird Southeastern International Conference on Combinatorics, Graph Theory and Computing (Boca Raton, FL, 2002). Congr. Numer. 159 (2002), 6975.
 Chartrand, Gary; Gu, Weizhen; Schultz, Michelle; Winters, Steven J.; Eccentric graphs. Networks 34 (1999), no. 2, 115121.
 On Diameter of Permutation Graphs, Networks, 33(1999), 161166.
 On Eccentric Graphs, Congressus Numerantium, 140(1999), 199207.
 Gu, Weizhen; On upper bound of diameters of permutation graphs. Proceedings of the Twentyseventh Southeastern International Conference on Combinatorics, Graph Theory and Computing (Baton Rouge, LA, 1996). Congr. Numer. 121 (1996), 223230.
 Representation of Plurality Preference Digraphs Realized by Trees, I: Necessary and Sufficient Conditions, (with K. B. Reid), Discrete Math., 147(1995), 185196.
 On Realizations of Digraphs by Preferences Based on Distances in Graphs, (with K. B. Reid and W. Schnyder), J. Graph Theory, 19(1995), 367373.
 Minimal Embedding of Two Graphs as Center and Periphery, J. Graphs and Combinatorics, 9(1993), 315323.
 Representation of Plurality Preference Digraphs Realized by Trees, II: On Realization Numbers, (with K. B. Reid), Discrete Math., 101(1992), 231249.
 Exact Order of Subsets of Asymptotic Bases, (with S. Chen), J. of Number Theory 41(1992), 1521.
 Peripheral and Eccentric Vertices in Graphs,(with K.B.Reid), J. Graphs and Combinatorics 8(1992), 361375.
 Peripheral and Eccentric Vertices in Products of Graphs, (with K.B.Reid), Congressus Numerantium} 79(1990), 7988.
 Finding Centers of Certain Treelike Networks, (with K.B.Reid), Congressus Numerantium} 67(1988), 265278.