Abstract
Let Len (K) be the minimum length of a knot on the cubic lattice (namely the minimum length necessary to construct the knot in the cubic lattice). This paper provides upper bounds for Len (K) of a nontrivial knot K in terms of its crossing number c(K) as follows: [Formula: see text] The ropelength of a knot is the quotient of its length by its thickness, the radius of the largest embedded normal tube around the knot. We also provide upper bounds for the minimum ropelength Rop (K) which is close to twice Len (K): [Formula: see text]
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