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Electronic Colloquium on Computational Complexity

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TR25-156 | 22nd October 2025
Young Kun Ko

Unifying the Landscape of Super-Logarithmic Dynamic Cell-Probe Lower Bounds

We prove a general translation theorem for converting one-way communication lower bounds over a product distribution to dynamic cell-probe lower bounds.

Specifically, we consider a class of problems considered in [Pat10] where:
1. $S_1, \ldots, S_m \in \{0, 1\}^n$ are given and publicly known.
2. $T ... more >>>


TR25-155 | 22nd October 2025
Young Kun Ko

Lower Bounds for Linear Operators

We consider a static data structure problem of computing a linear operator under cell-probe model. Given a linear operator $M \in \mathbb{F}_2^{m \times n}$, the goal is to pre-process a vector $X \in \mathbb{F}_2^n$ into a data structure of size $s$ to answer any query $ {\left\langle M_i , X ... more >>>


TR25-154 | 8th October 2025
Uma Girish

Fourier Spectrum of Noisy Quantum Algorithms

Quantum computing promises exponential speedups for certain problems, yet fully universal quantum computers remain out of reach and near-term devices are inherently noisy. Motivated by this, we study noisy quantum algorithms and the landscape between BQP and BPP. We build on a powerful technique to differentiate quantum and classical algorithms ... more >>>



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