منابع مشابه
On Automorphisms of Compact Groups
If m is Haar measure in G (normalized so that m(G) = 1) we consider the set function m'{E) = m{E). (E is the set of all x, # £ £ . ) Since m is a measure on G possessing all defining properties of m it follows from the uniqueness of Haar measure that ?n'(E) =m(E) for every measurable set E. In other words a is a measure preserving transformation of G; the purpose of this note is to investigate ...
متن کاملAUTOMORPHISMS OF p-LOCAL COMPACT GROUPS
Self equivalences of classifying spaces of p-local compact groups are well understood by means of the algebraic structure that gives rise to them, but explicit descriptions are lacking. In this paper we use Robinson’s construction of an amalgam G, realising a given fusion system, to produce a split epimorphism from the outer automorphism group of G to the group of homotopy classes of self homot...
متن کاملOn ergodic ZZ-actions on Lie groups by automorphisms
In response to a question raised by Halmos in his book on ergodic theory ([10], page 29) it was proved that a locally compact group admits a (bicontinuous) group automorphism acting ergodically (with respect to the Haar measure as a quasiinvariant measure) only if it is compact (see [9] for historical details and a generalisation to affine transformations; see [5] for the case of Lie groups). A...
متن کاملMixing Automorphisms of Compact Groups and a Theorem of Schlickewei
We prove that every mixing Z-action by automorphisms of a compact, connected, abelian group is mixing of all orders.
متن کاملSolvable automorphisms groups of a compact Kähler manifold
Let X be a compact Kähler manifold of complex dimension n, and let G be a connected solvable subgroup of the automorphism group Aut(X). Let N(G) be the normal subgroup of G of elements of null entropy. The aim of this short paper is to show that G/N(G) is a free abelian group of rank ≤ n− 1 and that the rank estimate is optimal. This proves the conjecture of Tits type in [6] affirmatively. The ...
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: The Annals of Mathematics
سال: 1981
ISSN: 0003-486X
DOI: 10.2307/1971377