Stéphane Gaubert, Zheng Qu. Checking strict positivity of Kraus maps is NP-hard. Inf. Process. Lett., 118:35-43, 2017. [doi]
@article{GaubertQ17,
title = {Checking strict positivity of Kraus maps is NP-hard},
author = {Stéphane Gaubert and Zheng Qu},
year = {2017},
doi = {10.1016/j.ipl.2016.09.008},
url = {http://dx.doi.org/10.1016/j.ipl.2016.09.008},
researchr = {https://researchr.org/publication/GaubertQ17},
cites = {0},
citedby = {0},
journal = {Inf. Process. Lett.},
volume = {118},
pages = {35-43},
}