The L2-Alexander invariant for knots and links

This thesis focuses on the computation of L2 invariants. The first part is on the L2-Alexander invariant for knots and links. One presents the construction of this invariant, followed by its well known properties. In particular, one shows how to compute this invariant using deficiency 1 presentati...

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主要作者: Wong, Zenas
其他作者: Andrew James Kricker
格式: Theses and Dissertations
語言:English
出版: 2017
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在線閱讀:http://hdl.handle.net/10356/72874
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機構: Nanyang Technological University
語言: English
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spelling sg-ntu-dr.10356-728742023-02-28T23:41:06Z The L2-Alexander invariant for knots and links Wong, Zenas Andrew James Kricker School of Physical and Mathematical Sciences DRNTU::Science::Mathematics This thesis focuses on the computation of L2 invariants. The first part is on the L2-Alexander invariant for knots and links. One presents the construction of this invariant, followed by its well known properties. In particular, one shows how to compute this invariant using deficiency 1 presentations, and also that this invariant detects the unknot. The second part gives explicit computations of the spectral density function of right multiplication operators arising from groups that are known to be virtually free. Finally, one presents a new proof of the pointwise a.e. convergence of the spectral density functions for for right multiplication operators R_w : l_2G -> l_2G. ​Doctor of Philosophy (SPMS) 2017-12-08T12:09:05Z 2017-12-08T12:09:05Z 2017 Thesis http://hdl.handle.net/10356/72874 en 62 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Science::Mathematics
spellingShingle DRNTU::Science::Mathematics
Wong, Zenas
The L2-Alexander invariant for knots and links
description This thesis focuses on the computation of L2 invariants. The first part is on the L2-Alexander invariant for knots and links. One presents the construction of this invariant, followed by its well known properties. In particular, one shows how to compute this invariant using deficiency 1 presentations, and also that this invariant detects the unknot. The second part gives explicit computations of the spectral density function of right multiplication operators arising from groups that are known to be virtually free. Finally, one presents a new proof of the pointwise a.e. convergence of the spectral density functions for for right multiplication operators R_w : l_2G -> l_2G.
author2 Andrew James Kricker
author_facet Andrew James Kricker
Wong, Zenas
format Theses and Dissertations
author Wong, Zenas
author_sort Wong, Zenas
title The L2-Alexander invariant for knots and links
title_short The L2-Alexander invariant for knots and links
title_full The L2-Alexander invariant for knots and links
title_fullStr The L2-Alexander invariant for knots and links
title_full_unstemmed The L2-Alexander invariant for knots and links
title_sort l2-alexander invariant for knots and links
publishDate 2017
url http://hdl.handle.net/10356/72874
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