Lege for FN
نویسندگان
چکیده
منابع مشابه
2nd International LeGE-WG Workshop
This paper calls for the design of the European Grid for Learning to take note of important issues which have arisen in previous e-learning cycles in the UK. In particular, low take-up of products and services by lecturers has been explained in terms of techno-fear, or ignorance of e-learning potential. These claims are unsubstantiated. Other explanations are possible for the observed resistanc...
متن کاملOn the Multiplicative Order of Fn+1/fn modulo Fm
Here, we show that if s �∈ {1, 2, 4} is a fixed positive integer and m and n are coprime positive integers such that the multiplicative order of Fn+1/Fn modulo Fm is s, where Fk is the kth Fibonacci number, then m < 500s2.
متن کاملCommensurations of Out(Fn)
Let Out(Fn) denote the outer automorphism group of the free group Fn with n > 3. We prove that for any finite index subgroup Γ < Out(Fn), the group Aut(Γ) is isomorphic to the normalizer of Γ in Out(Fn). We prove that Γ is co-Hopfian : every injective homomorphism Γ → Γ is surjective. Finally, we prove that the abstract commensurator Comm(Out(Fn)) is isomorphic to Out(Fn).
متن کاملDISTORTION FOR ABELIAN SUBGROUPS OF Out(Fn)
We prove that abelian subgroups of the outer automorphism group of a free group are quasiisometrically embedded. Our proof uses recent developments in the theory of train track maps by FeighnHandel. As an application, we prove the rank conjecture for Out(Fn).
متن کاملADDENDA TO "PYTHAGOREAN TRIPLES CONTAINING FIBONACCI NUMBERS: SOLUTIONS FOR Fn
then the Fibonacci numbers are given by Fn = Fn (1), and the Pell numbers are Pn = Fn(2). Cohn [4] has proved that the only perfect squares among the sequences {Fn(a)}9 a odd, are 0 and 1, and whenever a = k, a itself. Certain cases are known for a even [5]. The cited results of Cohn and Ljunggren mean that Conjectures 2.3,3.2, and 4.2 of [3] are true, and that the earlier results can be streng...
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ژورنال
عنوان ژورنال: Tidsskrift for Den norske legeforening
سال: 2010
ISSN: 0029-2001
DOI: 10.4045/tidsskr.10.0613