Abstract
This is an identification of many of the important subsets of the set of 2x2 matrices with complex number elements, having under matrix multiplication a semigroup structure. The concepts defined are important and the structures noted are excellent examples for use in mathematics education. Some applications are noted in the references. Since we are concerned only with 2x2 matrices the results are easily verified and the proofs are omitted.
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© 1974 D. Reidel Publishing Company, Dordrecht-Holland
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Mulcrone, T. (1974). Remarks on Two-By-Two Matric Semigroups. In: Cohen, R.S., Stachel, J.J., Wartofsky, M.W. (eds) For Dirk Struik. Boston Studies in the Philosophy of Science, vol 15. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-2115-9_8
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DOI: https://doi.org/10.1007/978-94-010-2115-9_8
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