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### Paper:

TR21-145 | 19th October 2021 18:11

#### Revisiting a Lower Bound on the Redundancy of Linear Batch Codes

TR21-145
Authors: Omar Alrabiah, Venkatesan Guruswami
Publication: 19th October 2021 18:12
A recent work of Li and Wootters (2021) shows a redundancy lower bound of $\Omega(\sqrt{Nk})$ for systematic linear $k$-batch codes of block length $N$ by looking at the $O(k)$ tensor power of the dual code. In this note, we present an alternate proof of their result via a linear independence argument on a collection of polynomials.