Two Problems in Applied Topology
Abstract
In this thesis, we present two main results in applied topology. In our first result, we describe an algorithm for computing a semi-algebraic description of the quotient map of a proper semi-algebraic equivalence relation given as input. The complexity of the algorithm is doubly exponential in terms of the size of the polynomials describing the semi-algebraic set and equivalence relation. In our second result, we use the fact that homology groups of a simplicial complex are isomorphic to the space of harmonic chains of that complex to obtain a representative cycle for each homology class. We then establish stability results on the harmonic chain groups.
Degree
Ph.D.
Advisors
Basu, Purdue University.
Subject Area
Mathematics
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