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Electronic Colloquium on Computational Complexity

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TR22-033 | 1st March 2022
Ivan Mihajlin, Anastasia Sofronova

A better-than-$3\log{n}$ depth lower bound for De Morgan formulas with restrictions on top gates

Revisions: 2 , Comments: 2

We prove that a modification of Andreev's function is not computable by $(3 + \alpha - \varepsilon) \log{n}$ depth De Morgan formula with $(2\alpha - \varepsilon)\log{n}$ layers of AND gates at the top for any $1/5 > \alpha > 0$ and any constant $\varepsilon > 0$. In order to do ... more >>>


TR22-032 | 1st March 2022
Iftach Haitner, Noam Mazor, Jad Silbak

Incompressiblity and Next-Block Pseudoentropy

A distribution is k-incompressible, Yao [FOCS ’82], if no efficient compression scheme compresses it to less than k bits. While being a natural measure, its relation to other computational analogs of entropy such as pseudoentropy, Hastad, Impagliazzo, Levin, and Luby [SICOMP 99], and to other cryptographic hardness assumptions, was unclear.

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TR22-031 | 16th February 2022
Prerona Chatterjee, Kshitij Gajjar, Anamay Tengse

Transparency Beyond VNP in the Monotone Setting

Revisions: 6

Recently Hrubes and Yehudayoff (2021) showed a connection between the monotone algebraic circuit complexity of \emph{transparent} polynomials and a geometric complexity measure of their Newton polytope. They then used this connection to prove lower bounds against monotone VP (mVP). We extend their work by showing that their technique can be ... more >>>



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