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EJC
2010
15 years 6 months ago
Connectivity of chamber graphs of buildings and related complexes
Let be a finite building (or, more generally, a thick spherical and locally finite building). The chamber graph G(), whose edges are the pairs of adjacent chambers in , is known t...
Anders Björner, Kathrin Vorwerk
DM
2007
101views more  DM 2007»
15 years 6 months ago
Threshold graphs, shifted complexes, and graphical complexes
We consider a variety of connections between threshold graphs, shifted complexes, and simplicial complexes naturally formed from a graph. These graphical complexes include the inde...
Caroline J. Klivans
ARSCOM
2008
110views more  ARSCOM 2008»
15 years 5 months ago
Total Perfect Codes in Tensor Products of Graphs
A total perfect code in a graph is a subset of the graph's vertices with the property that each vertex in the graph is adjacent to exactly one vertex in the subset. We prove t...
Ghidewon Abay-Asmerom, Richard Hammack, Dewey T. T...
JOLLI
2006
86views more  JOLLI 2006»
15 years 6 months ago
Types as Graphs: Continuations in Type Logical Grammar
Applying the programming-language concept of continuations, we propose a new multimodal analysis of quantification in Type Logical Grammar. Our approach naturally gives rise to a n...
Chris Barker, Chung-chieh Shan
SIGMOD
2005
ACM
136views Database» more  SIGMOD 2005»
15 years 12 months ago
Optimizing recursive queries in SQL
Recursion represents an important addition to the SQL language. This work focuses on the optimization of linear requeries in SQL. To provide an abstract framework for discussion, ...
Carlos Ordonez