Tim Netzer, Andreas Berthold Thom. Kazhdan's Property (T) via Semidefinite Optimization. Experimental Mathematics, 24(3):371-374, 2015. [doi]
@article{NetzerT15,
title = {Kazhdan's Property (T) via Semidefinite Optimization},
author = {Tim Netzer and Andreas Berthold Thom},
year = {2015},
doi = {10.1080/10586458.2014.999149},
url = {http://dx.doi.org/10.1080/10586458.2014.999149},
researchr = {https://researchr.org/publication/NetzerT15},
cites = {0},
citedby = {0},
journal = {Experimental Mathematics},
volume = {24},
number = {3},
pages = {371-374},
}