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Subgroups of the unimodular group defined by a congruence

Published online by Cambridge University Press:  24 October 2008

R. A. Rankin
Affiliation:
University of Glasgow

Extract

In an earlier paper I considered the problem of determining those subgroups of SL (2, ℤ) consisting of all matrices

satisfying a linear congruence

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1979

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References

REFERENCES

(1)Britto, J.On defining a subgroup of the special linear group by a congruence. J. Indian Math. Soc. 40 (1976), 235243.Google Scholar
(2)Newman, M.Integral matrices (New York, Academic Press, 1972).Google Scholar
(3)Rankin, R. A.Subgroups of the modular group defined by a single linear congruence. Acta Arithmetica 24 (1973), 313323.Google Scholar
(4)Wolfahrt, J. and Spilker, J.ntergruppen der GL2, welche durch homogene Kongiuenzen definiert sind. Manuscripta Math. 14 (1975), 349378.CrossRefGoogle Scholar