@article{RSMUP_2021__145__205_0, author = {Mart{\'\i}nez, J. Miquel}, title = {An infinite family of counterexamples to a conjecture on positivity}, journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova}, pages = {205--206}, volume = {145}, year = {2021}, doi = {10.4171/rsmup/79}, mrnumber = {4261654}, zbl = {1471.18022}, language = {en}, url = {http://archive.numdam.org/articles/10.4171/rsmup/79/} }