منابع مشابه
Not All Links Are Concordant to Boundary Links
A link is a smooth, oriented submanifold L = {Kx, . . . , Km} of S which is the ordered disjoint union of m manifolds each piecewise-linearly homeomorphic to the «-sphere (if m = 1, L is called a knot). Knots and links play an essential role in the classification of manifolds and, in this regard, perhaps the most important equivalence relation on links is that of link concordance. LQ and L{ are...
متن کاملLinks not concordant to the Hopf link
We give new Casson–Gordon style obstructions for a two–component link to be topologically concordant to the Hopf link.
متن کاملNumerical modeling of links behavior in eccentric bracings with dual vertical links
Configuration and geometry of bracing systems affect the seismic performance of structures significantly. Recently, the current authors have introduced a new configuration for eccentric bracing of structural frames that may be assumed as the combination of inverted Y-type and rotated K-type EBFs. The resulted braced frame is called EBF-DVL, consisting of two vertical links attached together by ...
متن کاملAnalytic Invariants of Boundary Links
Using basic topology and linear algebra, we define a plethora of invariants of boundary links whose values are power series with noncommuting variables. These turn out to be useful and elementary reformulations of an invariant originally defined by M. Farber [Fa2].
متن کاملOn the colored Jones polynomials of ribbon links, boundary links and Brunnian links
Habiro gave principal ideals of Z[q, q−1] in which certain linear combinations of the colored Jones polynomials of algebraically-split links take values. The author proved that the same linear combinations for ribbon links, boundary links and Brunnian links are contained in smaller ideals of Z[q, q−1] generated by several elements. In this paper, we prove that these ideals also are principal, e...
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ژورنال
عنوان ژورنال: Proceedings of the American Mathematical Society
سال: 1990
ISSN: 0002-9939
DOI: 10.2307/2047766