Centre for Discrete and Applicable Mathematics |
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CDAM Research Report, LSE-CDAM-2006-22January 2007 (Revised November 2008) |
Infinite Combinatorics and the foundations of regular variation
N. H. Bingham and A. J. Ostaszewski
In memoriam Paul Erdös, 1913-1996
The theory of regular variation is largely complete in one dimension, but is developed under regularity or smoothness assumptions. For functions of a real variable, Lebesgue measurability suffices, and so does having the property of Baire. We find here that the preceding two properties have common generalizations, exemplified by `containment up to translation of subsequences'. All of our combinatorial regularity properties are equivalent to the uniform convergence property.A PDF file (204 kB) with the full contents of this report can be downloaded by clicking here.
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