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Holomorphic Representations of the Braid Group

Cardiff School of Mathematics

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Dr G Lechner Applications accepted all year round Self-Funded PhD Students Only

About the Project

The braid group can be intuitively understood as the collection of a finite number of strands with all possibilities of "braiding" them, and consecutive braiding as the group operation.

This group appears in many different areas in mathematics. From its description, it is not surprising that it is relevant in knot theory. But braid groups and related algebraic concepts also appear in areas where one might not expect them, such as operator algebras, quantum field theory, or in the mathematical description of lattice systems, and have contributed to the invention of new mathematical structures such as Hopf algebras.

In applications, one is often interested in representations of braid groups, i.e. realizations of the braiding relations by linear operators on some vector space. Inspired by situations encountered in quantum field theory, a particular class of (infinite-dimensional) representations takes place on Hilbert spaces of holomorphic functions, where the entirely algebraic braid group comes into contact with concepts from (complex and functional) analysis.

The project will deal with certain "holomorphic" representations of braid groups and study the dependence on an underlying "R-matrix". Depending on the interests of the student, there are possibilities to put the emphasis abstract aspects or on applications.


Applicants should submit an application for postgraduate study via the online application service:

In the research proposal section of your application, please specify the project title and supervisors of this project.

If you are applying for more than one Cardiff University project please note this in the research proposal section.

Funding Notes

We are interested in pursuing this project and welcome applications if you are self-funded or have funding from other sources, including government sponsorships or your employer.

In the funding section, please select the ’self -funding’ option and specify the project title

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