Cobordism theory of semifree circle actions on complex n-spin manifolds.
dc.contributor.author | Ahmad, Muhammad Naeem | |
dc.date.accessioned | 2011-08-15T17:25:02Z | |
dc.date.available | 2011-08-15T17:25:02Z | |
dc.date.graduationmonth | August | en_US |
dc.date.issued | 2011-08-15 | |
dc.date.published | 2011 | en_US |
dc.description.abstract | In this work, we study the complex N-Spin bordism groups of semifree circle actions and elliptic genera of level N. The notion of complex N-Spin manifolds (or simply N-manifolds) was introduced by Hoehn in [Hoh91]. Let the bordism ring of such manifolds be denoted by U;N and the ideal in U;N Q generated by bordism classes of connected complex N-Spin manifolds admitting an e ffective circle action of type t be denoted by IN;t. Also, let the elliptic genus of level n be denoted by 'n. It is conjectured in [Hoh91] that IN;t = \ njN n - tker('n): Our work gives a complete bordism analysis of rational bordism groups of semifree circle actions on complex N-Spin manifolds via traditional geometric techniques. We use this analysis to give a determination of the ideal IN;t for several N and t, and thereby verify the above conjectural equation for those values of N and t. More precisely, we verify that the conjecture holds true for all values of t with N 9, except for case (N; t) = (6; 3) which remains undecided. Moreover, the machinery developed in this work furnishes a mechanism with which to explore the ideal INt for any given values of N and t. | en_US |
dc.description.advisor | Gerald H. Hoehn | en_US |
dc.description.degree | Doctor of Philosophy | en_US |
dc.description.department | Department of Mathematics | en_US |
dc.description.level | Doctoral | en_US |
dc.identifier.uri | http://hdl.handle.net/2097/12031 | |
dc.language.iso | en_US | en_US |
dc.publisher | Kansas State University | en |
dc.subject | Bordism Theory | en_US |
dc.subject.umi | Mathematics (0405) | en_US |
dc.title | Cobordism theory of semifree circle actions on complex n-spin manifolds. | en_US |
dc.type | Dissertation | en_US |