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Electronic Colloquium on Computational Complexity

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TR11-025 | 19th February 2011
Yang Li

Monotone Rank and Separations in Computational Complexity

Revisions: 1 , Comments: 1

In the paper, we introduce the concept of monotone rank, and using it as a powerful tool, we obtain several important and strong separation results in computational complexity.

\begin{itemize}

\item We show a super-exponential separation between monotone and non-monotone computation in the non-commutative model, and thus give the answer to ... more >>>


TR11-024 | 25th February 2011
Rahul Jain

New strong direct product results in communication complexity

We show two new direct product results in two different models of communication complexity. Our first result is in the model of one-way public-coin model. Let $f \subseteq X \times Y \times Z $ be a relation and $\epsilon >0$ be a constant. Let $R^{1,pub}_{\epsilon}(f)$ represent the communication complexity of ... more >>>


TR11-023 | 16th February 2011
Oded Goldreich, Or Meir

Input-Oblivious Proof Systems and a Uniform Complexity Perspective on P/poly

Revisions: 5 , Comments: 2

We initiate a study of input-oblivious proof systems, and present a few preliminary results regarding such systems.
Our results offer a perspective on the intersection of the non-uniform complexity class P/poly with uniform complexity classes such as NP and IP.
In particular, we provide a uniform complexity formulation of the ... more >>>



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