Andrzej Lingas. Vector convolution in O(n) steps and matrix multiplication in O(n^2) steps : -). Electronic Colloquium on Computational Complexity (ECCC), 21:39, 2014. [doi]
@article{Lingas14,
title = {Vector convolution in O(n) steps and matrix multiplication in O(n^2) steps : -)},
author = {Andrzej Lingas},
year = {2014},
url = {http://eccc.hpi-web.de/report/2014/039},
researchr = {https://researchr.org/publication/Lingas14},
cites = {0},
citedby = {0},
journal = {Electronic Colloquium on Computational Complexity (ECCC)},
volume = {21},
pages = {39},
}