Robuta

https://www.overleaf.com/articles/the-alexander-polynomial/mzgwjkvgkzvm
A quick explanation of why the Alexander polynomial is an invariant for knots.
alexander polynomiallatex editoroverleafonline
https://arxiv.org/abs/1902.05648
Abstract page for arXiv paper 1902.05648: A quantum categorification of the Alexander polynomial
alexander polynomialquantumcategorification