We show that the Nielsen number is a knot invariant via representation variety.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-bc77-0-6, author = {Alexander Fel'shtyn}, title = {Nielsen number is a knot invariant}, journal = {Banach Center Publications}, volume = {75}, year = {2007}, pages = {69-74}, zbl = {1125.37010}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-bc77-0-6} }
Alexander Fel'shtyn. Nielsen number is a knot invariant. Banach Center Publications, Tome 75 (2007) pp. 69-74. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-bc77-0-6/