Given a fixed computable binary operation , we study the complexity of the following generation problem: The input consists of strings ½ Ò . The question is whether is in the c...
As Dag Normann has recently shown, the fully abstract model for PCF of hereditarily sequential functionals is not -complete and therefore not continuous in the traditional terminol...
We consider the problem of counting the number of spanning trees in planar graphs. We prove tight bounds on the complexity of the problem, both in general and especially in the mo...
This paper discusses the implementation and performance of bounded voting: a new object replication protocol designed for use in mobile and weakly-connected environments. We show ...
This paper shows a complete upward collapse in the Polynomial Hierarchy (PH) if for ZPP, two queries to a SAT oracle is equivalent to one query. That is, ZPPSAT[1] = ZPPSAT [2] = ...