"Continuities on Subspaces" by Timothy James Glatzer

Semester

Fall

Date of Graduation

2013

Document Type

Dissertation

Degree Type

PhD

College

Eberly College of Arts and Sciences

Department

Mathematics

Committee Chair

Krzysztof Ciesielski

Committee Co-Chair

Edgar Fuller

Committee Member

John Goldwasser

Committee Member

Robert Mnatsakanov

Committee Member

Jerzy Wojciechowski

Abstract

We define a generalized continuity by declaring that for any family S of subsets of a topological space X, a function f : X → Y is S -continuous if for each S∈ S , the function f ↾ S : S → Y is continuous. This is easily seen to generalize such well known concepts as separate continuity and linear continuity. Using this definition as a way to unify several disparate results, we attempt to create a theory of S -continuity. As a part of this program, we give constructions for S -continuous functions for several natural classes S , describe the sets of discontinuities of such functions (characterizing several classes), and discuss the regularity of such functions.

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