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TABLEAUX
1999
Springer
15 years 4 months ago
1999
Springer
We prove, by introducing a new kind of sequent calculus, that the decision problem for the non-associative Lambek calculus with product belongs to PTIME. This solves an open prolem...
ICALP
1995
Springer
15 years 3 months ago
1995
Springer
EUROCRYPT
2008
Springer
15 years 1 months ago
2008
Springer
Predicate encryption is a new paradigm for public-key encryption generalizing, among other things, identity-based encryption. In a predicate encryption scheme, secret keys corresp...
JAL
2000
14 years 11 months ago
2000
MOC
1998
14 years 11 months ago
1998
Given a monic real polynomial with all its roots on the unit circle, we ask to what extent one can perturb its middle coefficient and still have a polynomial with all its roots on ...