Abstract
The purpose of this paper is first to show that if X is any locally compact but not compact perfect Polish space and stands for the one-point compactification of X, while EX is the equivalence relation which is defined on the Polish group C(X,R+*) by where f, g are in C(X,R+*), then EX is induced by a turbulent Polish group action. Second we show that given any if we identify the n-dimensional unit sphere Sn with the one-point compactification of Rn via the stereographic projection, while E n , r is the equivalence relation which is defined on the Polish group Cr(Rn,R+*) by where f, g are in Cr(Rn,R+*), then E n , r is also induced by a turbulent Polish group action.
Similar content being viewed by others
References
Dieudonné, J.: Foundations of Modern Analysis. Academic Press New York 1960
Do Carmo, M. P.: Riemannian Geometry. Second Printing Birkhäuser Boston 1993
Hjorth, G.: Classification and Orbit Equivalence Relations. Mathematical Surveys and Monographs 75, American Mathematical Society 2000
Kechris, A. S.: Classical Descriptive Set Theory. Springer New York 1995
Kechris, A. S., Sofronidis, N. E.: A strong generic ergodicity property of unitary and self-adjoint operators. Ergodic Theory and Dynamical Systems 21, 1459–1479 (2001)
Kuratowski, K.: Topology. Volume II Academic Press New York 1968
Rudin, W.: Real and Complex Analysis. Third Edition McGraw-Hill Singapore 1987
Rudin, W.: Functional Analysis. Second Edition McGraw-Hill Singapore 1991
Sofronidis, N. E.: Topics in Descriptive Set Theory related to Equivalence Relations, Complex Borel and Analytic Sets. Ph.D. Thesis Caltech 1999
Sofronidis, N. E.: Turbulence phenomena in elementary real analysis. Real Analysis Exchange 29, 813–820 (2003/2004)
Author information
Authors and Affiliations
Corresponding author
Additional information
Dedicated to my sister Alexandra and to her daughter Marianthi.
Rights and permissions
About this article
Cite this article
Sofronidis, N. Turbulence Phenomena in Real Analysis. Arch. Math. Logic 44, 801–815 (2005). https://doi.org/10.1007/s00153-005-0300-4
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00153-005-0300-4