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Electronic Colloquium on Computational Complexity

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TR24-105 | 13th June 2024
Benny Applebaum, Kaartik Bhushan, Manoj Prabhakaran

Communication Complexity vs Randomness Complexity in Interactive Proofs

In this note, we study the interplay between the communication from a verifier in a general private-coin interactive protocol and the number of random bits it uses in the protocol. Under worst-case derandomization assumptions, we show that it is possible to transform any $I$-round interactive protocol that uses $\rho$ random ... more >>>


TR24-104 | 12th June 2024
Omkar Baraskar, Agrim Dewan, Chandan Saha, Pulkit Sinha

NP-hardness of testing equivalence to sparse polynomials and to constant-support polynomials

An $s$-sparse polynomial has at most $s$ monomials with nonzero coefficients. The Equivalence Testing problem for sparse polynomials (ETsparse) asks to decide if a given polynomial $f$ is equivalent to (i.e., in the orbit of) some $s$-sparse polynomial. In other words, given $f \in \mathbb{F}[\mathbf{x}]$ and $s \in \mathbb{N}$, ETsparse ... more >>>


TR24-103 | 11th June 2024
Farzan Byramji, Vatsal Jha, Chandrima Kayal, Rajat Mittal

Relations between monotone complexity measures based on decision tree complexity

In a recent result, Knop, Lovett, McGuire and Yuan (STOC 2021) proved the log-rank conjecture for communication complexity, up to $\log n$ factor, for any Boolean function composed with $AND$ function as the inner gadget. One of the main tools in this result was the relationship between monotone analogues of ... more >>>



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