منابع مشابه
Knot Invariants from a Kohno-kontsevich Integral for Braids
An invariant of knots is constructed from an integral for geometric braids due to Kohno and Kontsevich. It takes values in a quotient by a certain ideal of the algebra generated by chord diagrams over the circle.
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This is a review article about knots and links of braid index 3. Its goal is to gather together, in one place, some of the tools that are special to knots and links of braid index 3, in a form that could be useful for those who have a need to calculate, and need to know precisely all the exceptional cases. Knots and links which are closed 3-braids are a very special class. Like 2-bridge knots a...
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It is known that about 70% of surgeries on the figure 8 knot give manifolds which contain immersed incompressible surfaces. We improve this to about 80% by giving a very simple proof that all even surgeries give manifolds containing such a surface. Moreover, we give a quick proof that every (6k, t) surgery is virtually Haken, thereby partially dealing with some exceptional cases in Baker’s resu...
متن کاملOn the genericity of pseudo-Anosov braids I: rigid braids
We prove that, in the l-ball of the Cayley graph of the braid group with n > 3 strands, the proportion of rigid pseudo-Anosov braids is bounded below independently of l by a positive value.
متن کامل“the effect of risk aversion on the demand for life insurance: the case of iranian life insurance market”
abstract: about 60% of total premium of insurance industry is pertained?to life policies in the world; while the life insurance total premium in iran is less than 6% of total premium in insurance industry in 2008 (sigma, no 3/2009). among the reasons that discourage the life insurance industry is the problem of adverse selection. adverse selection theory describes a situation where the inf...
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ژورنال
عنوان ژورنال: Doğuş Üniversitesi Dergisi
سال: 2001
ISSN: 1302-6739
DOI: 10.31671/dogus.2019.364