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We develop a generalization of the classical Chow groups in order to have available some standard properties for homology theories: long exact sequences, spectral sequences for brations, homotopy invariance and intersections. The basis for our constructions is Milnor's K-theory.

For the torus link t(a, b) the bridge‐number and the minimal number of meridional (Wirtinger) generators necessary to generate the knot group coincide and are equal to min (|a|, |b|). Moreover, any two minimal plat presentations of t(a, b) are algebraically equivalent.

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