5 ms·

Looks like this is the paper: COUNTEREXAMPLES TO HEDETNIEMI’S CONJECTURE https://arxiv.org/pdf/1905.02167.pdf https://arxiv.org/pdf/1905.02167.pdf

• svat 7y ago
  This is linked in the first sentence of the article, FYI. (Though I guess it's easy to miss regardless…)
• JadeNB 7y ago
  Link to abstract: https://arxiv.org/abs/1905.02167 https://arxiv.org/abs/1905.02167 .