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Test maps and discrete groups in SL$$(2,C)$$. (English) Zbl 1178.30024
Author’s abstract: We present several discreteness criterions for a non-elementary group $$G$$ in SL$$(2,C)$$ by using a test map which need not be in $$G$$.

MSC:
 30C62 Quasiconformal mappings in the complex plane 30F40 Kleinian groups (aspects of compact Riemann surfaces and uniformization) 20H10 Fuchsian groups and their generalizations (group-theoretic aspects)
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References:
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