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SIGACT
2008
67views more  SIGACT 2008»
15 years 3 months ago
Enumerative combinatorics
Charalambos A. Charalambides
BSL
2000
153views more  BSL 2000»
15 years 3 months ago
Combinatorics with definable sets: Euler characteristics and Grothendieck rings
We recall the notions of weak and strong Euler characteristics on a first order structure and make explicit the notion of a Grothendieck ring of a structure. We define partially or...
Jan Krajícek, Thomas Scanlon
DAM
1998
86views more  DAM 1998»
15 years 3 months ago
Combinatorics of RNA Secondary Structures
Ivo L. Hofacker, Peter Schuster, Peter F. Stadler