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Integral points on twisted Markoff surfaces (1904.06864v3)
Published 15 Apr 2019 in math.NT and math.AG
Abstract: We study the integral Hasse principle for affine varieties of the form ax2+y2+z2-xyz=m ,using Brauer-Manin obstruction, and we produce examples whose Brauer groups include 4-torsion elements .We will construct their explicit representatives and compute local invariants in special places.
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