Periodic one-parameter groups in three-space
نویسندگان
چکیده
منابع مشابه
One-parameter Transformation Groups of the Three-sphere
Introduction. In [3], Seifert describes all the fiberings of the three-sphere. The fibers are the orbits when the circle group acts effectively on the three-sphere without fixed points in a certain way. In [2,§ 6.7], Montgomery and Zippin show that when the circle group acts on the three-sphere effectively but with fixed points its action is described in a suitable coordinate system as a rotati...
متن کاملOne-parameter superscaling in three dimensions
Numerical and analytical details are presented on the newly discovered superscaling property of the energy spacing distribution in the three dimensional Anderson model. PACS: 71.30.+h, 72.12.Rn, 05.40.+j .
متن کاملOne-parameter Groups and Combinatorial Physics
1 February 1, 2008 7:33 WSPC/Trim Size: 9in x 6in for Proceedings 1param2 2 In this communication, we consider the normal ordering of operators of the type Ω = α+β=e+1 c α,β (a +) α a(a +) β , where a (resp. a +)is a boson annihilation (resp. creation) operator; these satisfy [a, a + ] ≡ aa + − a + a = 1, and for the purposes of this note may be thought of as a ≡ d/dx and a + ≡ x. We discuss th...
متن کاملOn Three-Dimensional Space Groups
A entirely new and independent enumeration of the crystallographic space groups is given, based on obtaining the groups as fibrations over the plane crystallographic groups, when this is possible. For the 35 “irreducible” groups for which it is not, an independent method is used that has the advantage of elucidating their subgroup relationships. Each space group is given a short “fibrifold name...
متن کاملReplicate periodic windows in the parameter space of driven oscillators
0960-0779/$ see front matter 2011 Elsevier Ltd doi:10.1016/j.chaos.2011.08.002 ⇑ Corresponding author. Tel.: +55 (11) 3091 6842 6706. E-mail address: [email protected] (E.S. Medeiros). In the bi-dimensional parameter space of driven oscillators, shrimp-shaped periodic windows are immersed in chaotic regions. For two of these oscillators, namely, Duffing and Josephson junction, we show that a weak h...
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: Transactions of the American Mathematical Society
سال: 1936
ISSN: 0002-9947
DOI: 10.1090/s0002-9947-1936-1501864-6