dc.contributor.advisor | Schick, Thomas Prof. Dr. | |
dc.contributor.author | Han, Zhicheng | |
dc.date.accessioned | 2024-02-29T18:49:11Z | |
dc.date.available | 2024-03-07T00:50:10Z | |
dc.date.issued | 2024-02-29 | |
dc.identifier.uri | http://resolver.sub.uni-goettingen.de/purl?ediss-11858/15148 | |
dc.identifier.uri | http://dx.doi.org/10.53846/goediss-10360 | |
dc.format.extent | 119 | de |
dc.language.iso | eng | de |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.subject.ddc | 510 | de |
dc.title | The Spectra on Lie Groups and Its Application to twisted L2-Invariants | de |
dc.type | doctoralThesis | de |
dc.contributor.referee | Schick, Thomas Prof. Dr. | |
dc.date.examination | 2023-09-14 | de |
dc.description.abstracteng | We computed spectra of various $G$-invariant differential operators on the universal cover of 2x2 unimodular groups. This was achieved by applying tools from harmonic analysis/representation theory to corresponding groups. In this thesis we have discussed in detail how to apply harmonic analysis to study such problems, this include in particular a detailed analysis of the operator in question, a estimate of the growth of its kernel, and later the computation of the spectra for several operators. Towards the second half we applied the data to compute the Novikov-Shubin invariants on respective group, which is a topological invariant defined to measure the heat decay at large time. | de |
dc.contributor.coReferee | Meyer, Ralf Prof. Dr. | |
dc.subject.eng | L2-invariants | de |
dc.subject.eng | Novikov-Shubin invariants | de |
dc.subject.eng | Lie groups | de |
dc.subject.eng | Harmonic analysis | de |
dc.identifier.urn | urn:nbn:de:gbv:7-ediss-15148-4 | |
dc.affiliation.institute | Fakultät für Mathematik und Informatik | de |
dc.subject.gokfull | Mathematics (PPN61756535X) | de |
dc.description.embargoed | 2024-03-07 | de |
dc.identifier.ppn | 1882283228 | |
dc.notes.confirmationsent | Confirmation sent 2024-02-29T19:45:01 | de |