Abstract
This paper studies free quotients of the groups SL2(ℤ[x]) and SL2(k[x, y]),k a finite field. These quotients give information about the relation of the above groups to their subgroups generated by elementary or unipotent elements.
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Grunewald, F., Mennicke, J. & Vaserstein, L. On the groups SL2(ℤ[x]) and SL2(k[x, y]). Israel J. Math. 86, 157–193 (1994). https://doi.org/10.1007/BF02773676
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DOI: https://doi.org/10.1007/BF02773676