Solution

ID: past-exam-of-the-mathematics-course-of-the-university-of-cambridge/2018/iii/paper-141/1/d/solution

Take a Hopf link with its two unknot components labeled by integer surgery coefficients .
The slam-dunk move eliminates a meridional component with coefficient and replaces the other coefficient by . Eliminating the component with coefficient three gives
Thus this Dehn surgery on a framed link becomes Dehn filling on the unknot, with the required orientation. As a check, its surgery linking matrix is
whose determinant is five.

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