Lifting a 5-dimensional representation of $M_{11}$ to a complex unitary representation of a certain amalgam
نشر في Geoffrey Robinson
بتاريخ 2015
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English
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We lift the $5$-dimensional characteristic $3$ representation of $M_{11}$ to a complex representation of the amalgam ${rm GL}(2,3)*_{D_8}S_{4}$, and consider its reduction (mod $p$) for other odd primes.