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JSYML
2007
100views more  JSYML 2007»
13 years 9 months ago
Combinatorial principles weaker than Ramsey's Theorem for pairs
We investigate the complexity of various combinatorial theorems about linear and partial orders, from the points of view of computability theory and reverse mathematics. We focus ...
Denis R. Hirschfeldt, Richard A. Shore
FOCS
2005
IEEE
14 years 3 months ago
Nonembeddability theorems via Fourier analysis
Various new nonembeddability results (mainly into L1) are proved via Fourier analysis. In particular, it is shown that the Edit Distance on {0, 1}d has L1 distortion (log d) 1 2 â...
Subhash Khot, Assaf Naor
LICS
1998
IEEE
14 years 1 months ago
A Congruence Theorem for Structured Operational Semantics of Higher-Order Languages
In this paper we describe the promoted tyft tyxt rule format for de ning higher-order languages. The rule format is a generalization of Groote and Vaandrager's tyft tyxt form...
Karen L. Bernstein
APAL
2010
90views more  APAL 2010»
13 years 10 months ago
Canonical extensions for congruential logics with the deduction theorem
We introduce a new and general notion of canonical extension for algebras in the algebraic counterpart AlgS of any finitary and congruential logic S. This definition is logic-base...
Mai Gehrke, Ramon Jansana, Alessandra Palmigiano
DCG
2008
77views more  DCG 2008»
13 years 10 months ago
Rigidity and the Lower Bound Theorem for Doubly Cohen-Macaulay Complexes
We prove that for d 3, the 1-skeleton of any (d - 1)-dimensional doubly Cohen-Macaulay (abbreviated 2-CM) complex is generically drigid. This implies that Barnette's lower b...
Eran Nevo