e-MATH
Knots and their polynomials

The Calculation of the Jones Polynomial of the Right Trefoil

J(right-trefoil)[t] = (t3/2 - t1/2) J(right-link)[t] + t2 (Step 1)

= (t3/2 - t1/2)(t3/2 - t1/2 + t2 J(two unlinked unknots)[t]) + t2 (Step 2)

= (t3/2 - t1/2)(t3/2 - t1/2 + t2(- t1/2 - t-1/2)) + t2 (Step 3)

= -t4 + t3 + t.

This completes the calculation.


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