The Ranks of the Groups of Links
The group of links in codimension greater than two is the group of isotopy classes of smooth embeddings , where are positive integers. A link is primary, if it becomes trivial after removing any of its components. This application computes the rank of the group of primary links of given dimensions .
Contributed by: Mikhail Skopenkov (May 2011)
(Institute for Information Transmission Problems of the Russian Academy of Sciences, and King Abdullah University of Science and Technology)
Open content licensed under CC BY-NC-SA
This application is based on the formula given in .
 D. Crowley, S. C. Ferry, and M. Skopenkov, "The Rational Classification of Links of Codimension > 2." (May 2011) http://www.math.rutgers.edu/~sferry/ps/RCL24-MS.pdf.
 A. Haefliger, "Differentiable Links," Topology, 1, 1962 pp. 241–244.
 V. Nezhinsky, "Some Computations in Higher Dimensional Link Theory," Siberian Mathematical Journal, 24(4), 1982 pp. 104–115 (in Russian).