Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1996-04-04
J.Math.Phys. 37 (1996) 3014-3021
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
15 pages, latex-revtex, no figures
Scientific paper
10.1063/1.531527
It is well known that knots are countable in ordinary knot theory. Recently, knots {\it with intersections} have raised a certain interest, and have been found to have physical applications. We point out that such knots --equivalence classes of loops in $R^3$ under diffeomorphisms-- are not countable; rather, they exhibit a moduli-space structure. We characterize these spaces of moduli and study their dimension. We derive a lower bound (which we conjecture being actually attained) on the dimension of the (non-degenerate components) of the moduli spaces, as a function of the valence of the intersection.
Grot Norbert
Rovelli Carlo
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