# Difference between revisions of "Open Problems talk:72"

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− | Clément: Not clear to me from glancing at the paper (http://homes.soic.indiana.edu/qzhangcs/papers/pods15-join.pdf, Section 3.1) if $C$ is a Boolean matrix or an integer-valued one ($A$ and $B$ are Boolean, but the product seems to be taken in $Z$). | + | Clément: Not clear to me from glancing at the paper (http://homes.soic.indiana.edu/qzhangcs/papers/pods15-join.pdf, Section 3.1) if $C$ is a Boolean matrix or an integer-valued one ($A$ and $B$ are Boolean, but the product $C$ seems to be taken in $\mathbb{Z}$). |

## Latest revision as of 18:39, 18 January 2016

Clément: Not clear to me from glancing at the paper (http://homes.soic.indiana.edu/qzhangcs/papers/pods15-join.pdf, Section 3.1) if $C$ is a Boolean matrix or an integer-valued one ($A$ and $B$ are Boolean, but the product $C$ seems to be taken in $\mathbb{Z}$).