Let n be a positive integer, and let H be the subset of SL2(Z) given by -frcs 1+ np nq H A E SL2(Z) | A = for some p, q, r, s E Z nr 1+ ns
Let n be a positive integer, and let H be the subset of SL2(Z) given by -frcs 1+ np nq H A E SL2(Z) | A = for some p, q, r, s E Z nr 1+ ns
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter2: The Integers
Section2.4: Prime Factors And Greatest Common Divisor
Problem 4E: Find the smallest integer in the given set.
{ and for some in }
{ and for some in }
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Question
Let GL2(R) be the group of all 2×2 nonsingular matrices with entries in R, and let SL2(Z)
be the subset of GL2(R) given by
SL2(Z) = {A ∈ GL2(R) | all entries of A are in Z and det(A) = 1} .
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