Queen's Emblem   Queen's University at Kingston
  Department of Mathematics and Statistics
Kingston, Ontario, Canada, K7L 3N6

David Gregory
Professor Emeritus
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Email:   gregoryd{at}mast{dot}queensu{dot}ca
Tel:   613-533-2401
Research:  Graph theory,   Combinatorial matrix theory        
Publications:  Recent and Selected,  All in Print
Ph.D. Students

Links:  Astronomy,   MathSciNet,   Library,   ArXiv,   Combinatorica,   IMAGE,   QSpace,
PJC,   DBW,   EJC,   JGT,   SIAM JDM,   JCTA,   JCTB,   DM,   EUR JC,   CCA,   LAA,  
GC,   ELA,   Weekly Events  

Hall conditions for edge-weighted bipartite graphs [pdf] ,   QSpace  

Queen's - R.M.C. Discrete Mathematics Seminar  
A matchings dual for graphs (8 May 2011) [pdf]  
Expressing graphs in terms of complete bipartite graphs (Nov. 1 and 22, 2011) [pdf] Revised Dec. 2011
Spectra of signed adjacency matrices (Feb. 27, 2012) [pdf]

Memorial Pages:   Norman J. Pullman (1931-99),     Dom de Caen (1956-2002)