Date Thesis Awarded
7-2012
Access Type
Honors Thesis -- Access Restricted On-Campus Only
Degree Name
Bachelors of Science (BS)
Department
Mathematics
Advisor
Vladimir Bolotnikov
Committee Members
Jianjun Paul Tian
Ilya Spitkovsky
Joshua Gert
Abstract
The functions analytic in the upper half-plane and mapping the upper-half plane into itself (the so-called Pick functions) play a prominent role in several branches of mathematics. In this thesis we study fixed points of such functions. It is known that a Pick-class function different from the identity map can have at most one fixed point in the upper-half plane. However, it may have many (even infinitely many) appropriately defined boundary fixed points. We establish relations between the values of the derivative of a Pick function at these fixed points. Similar questions are considered in the context of Stieltjes-class functions which, in addition, are analytic on the positive half-axis and map this half-axis into itself.
Recommended Citation
Woods, Nicholas Andrew, "Fixed Points of Pick and Stieltjes functions: A Linear Algebraic Approach" (2012). Undergraduate Honors Theses. William & Mary. Paper 502.
https://scholarworks.wm.edu/honorstheses/502
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Comments
Thesis is part of Honors ETD pilot project, 2008-2013. Migrated from Dspace in 2016.