%0 Journal Article %T The conjugacy problem for two by two matrices over polynomial rings %A Fritz J. Grunewald %A Natalia K. Iyudu %J Mathematics %D 2008 %I arXiv %X We give an effective solution of the conjugacy problem for two by two matrices over the polynomial ring in one variable over a finite field. %U http://arxiv.org/abs/0801.3011v1