Watson–Crick pairing, the Heisenberg group and Milnor invariants
نویسندگان
چکیده
منابع مشابه
Watson-Crick pairing, the Heisenberg group and Milnor invariants.
We study the secondary structure of RNA determined by Watson-Crick pairing without pseudo-knots using Milnor invariants of links. We focus on the first non-trivial invariant, which we call the Heisenberg invariant. The Heisenberg invariant, which is an integer, can be interpreted in terms of the Heisenberg group as well as in terms of lattice paths. We show that the Heisenberg invariant gives a...
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A link L in the 3-sphere is called Brunnian if every proper sublink of L is trivial. In a previous paper, the first author proved that the restriction to Brunnian links of any Goussarov-Vassiliev finite type invariant of (n + 1)component links of degree < 2n is trivial. The purpose of this paper is to study the first nontrivial case. We show that the restriction of an invariant of degree 2n to ...
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ژورنال
عنوان ژورنال: Journal of Mathematical Biology
سال: 2008
ISSN: 0303-6812,1432-1416
DOI: 10.1007/s00285-008-0223-x