منابع مشابه
The Multivariable Alexander Polynomial for a Closed Braid
In this paper I give a similar method for finding the multivariable Alexander polynomial of a link L presented as the closure of a braid β. The main ingredient is a readily constructed multivariable version of the reduced Burau matrices. Other versions of ‘coloured’ Burau matrices have been developed, for example by Penne, [4], which can be interpreted as determining linear presentations of sui...
متن کاملEntanglement combing.
We show that all multipartite pure states can, under local operations, be transformed into bipartite pairwise entangled states in a "lossless fashion": An arbitrary distinguished party will keep pairwise entanglement with all other parties after the asymptotic protocol--decorrelating all other parties from each other--in a way that the degree of entanglement of this party with respect to the re...
متن کاملPollen combing
The stingless bee Trigona carbonaria is a small, shiny black bee native to Australia. These bees collect pollen and nectar in much the same way as the well-known honey bee Apis mellifera, but can be more effective at pollination because as well as crawling over the anthers, they crawl over the style of the flower, delivering pollen to the stigma. The main scanning electron micrograph above show...
متن کاملCombing Euclidean buildings
For an arbitrary Euclidean building we define a certain combing, which satisfies the “fellow traveller property” and admits a recursive definition. Using this combing we prove that any group acting freely, cocompactly and by order preserving automorphisms on a Euclidean building of one of the types An, Bn, Cn admits a biautomatic structure. AMS Classification numbers Primary: 20F32
متن کاملCombing Nilpotent and Polycyclic Groups
The notable exclusions from the family of automatic groups are those nilpotent groups which are not virtually abelian, and the fundamental groups of compact 3-manifolds based on the Nil or Sol geometries. Of these, the 3-manifold groups have been shown by Bridson and Gilman to lie in a family of groups defined by conditions slightly more general than those of automatic groups, that is, to have ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Mathematics of Computation
سال: 2018
ISSN: 0025-5718,1088-6842
DOI: 10.1090/mcom/3392