Invariant Metrics and Squeezing Functions on Bounded Domains

Ökten, Ahmed Yekta
In this thesis we will study the biholomorphically invariant objects called squeezing functions. They are closely releated to invariant metrics on bounded domains and describe how much a domain looks like the unit ball looking on a fixed point. In the main part of this thesis, we will give our results on squeezing functions on planar domains. In particular, our main result provides an alternative proof for the explicit formulas of squeezing functions on annuli. Also, we survey results on boundary behaviour of squeezing functions.


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In this paper, we consider semi-bentness of quadratic Boolean functions defined for even n and give the characterisation of these functions. Up to our knowledge, semi-bentness of this class has not been investigated before and we proved that semi-bent functions of this form exist only for 6|n. Furthermore, we present a method for enumeration of semi-bent and bent functions in certain classes. Using this method we find the exact number of semi-bent functions of this form. Moreover, we complete some previous ...
Citation Formats
A. Y. Ökten, “Invariant Metrics and Squeezing Functions on Bounded Domains,” M.S. - Master of Science, Middle East Technical University, 2021.