Kisil, VV orcid.org/0000-0002-6593-6147 (2019) Moebius--Lie Geometry and its Extension. In: Mladenov, IM, Pulov, V and Yoshioka, A, (eds.) Geometry, Integrability and Quantization, Volume XX. Twentieth International Conference on Geometry, Integrability and Quantization, 02-07 Jun 2018, Varna, Bulgaria. Avangard Prima , Sofia, Bulgaria , pp. 13-61.
Abstract
This paper is a review of the classical Moebius–Lie geometry and recent works on its extension. The latter considers ensembles of cycles (quadrics), which are interconnected through conformal-invariant geometric relations (e.g. “to be orthogonal”, “to be tangent”, etc.), as new objects in an extended Moebius–Lie geometry. It is shown on examples, that such ensembles of cycles naturally parameterise many other conformally-invariant families of objects, two examples–the Poincare extension and continued fractions are considered in detail. Further examples, e.g. loxodromes, wave fronts and integrable systems, are discussed elsewhere.
The extended Moebius–Lie geometry is efficient due to a method, which reduces a collection of conformally invariant geometric relations to a system of linear equations, which may be accompanied by one fixed quadratic relation. The algorithmic nature of the method allows to implement it as a C++ library, which operates with numeric and symbolic data of cycles in spaces of arbitrary dimensionality and metrics with any signatures. Numeric calculations can be done in exact or approximate arithmetic. In the two- and three-dimensional cases illustrations and animations can be produced. An interactive Python wrapper of the library is provided as well.
Metadata
Item Type: | Proceedings Paper |
---|---|
Authors/Creators: |
|
Editors: |
|
Keywords: | Clifford algebra, continued fraction, fraction-linear transformation, indefinite inner product space, integrable system, loxodrome, Moebius–Lie geometry, Poincare extension spheres geometry |
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mathematics (Leeds) > Pure Mathematics (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 01 Feb 2019 17:03 |
Last Modified: | 21 Aug 2019 14:45 |
Status: | Published |
Publisher: | Avangard Prima |
Identification Number: | 10.7546/giq-20-2019-13-61 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:141430 |