Elton, Daniel M. (2001) Spectral properties of the equation (' + ieA) ' u = '? Proceedings of the Royal Society of Edinburgh: Section A Mathematics, 131 (5). pp. 10651089. ISSN 14737124

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Abstract
We develop a spectral theory for the equation ( + ieA) × u = ±mu on Minkowski 3space (one time variable and two space variables); here, A is a real vector potential and the vector product is defined with respect to the Minkowski metric. This equation was formulated by Elton and Vassiliev, who conjectured that it should have properties similar to those of the twodimensional Dirac equation. Our equation contains a large parameter c (speed of light), and this motivates the study of the asymptotic behaviour of its spectrum as c → +∞. We show that the essential spectrum of our equation is the same as that of Dirac (theorem 3.1), whereas the discrete spectrum agrees with Dirac to a relative accuracy δλ/mc2 ~ O(c−4) (theorem 3.3). In other words, we show that our equation has the same accuracy as the twodimensional Pauli equation, its advantage over Pauli being relativistic invariance.
Item Type:  Journal Article 

Journal or Publication Title:  Proceedings of the Royal Society of Edinburgh: Section A Mathematics 
Additional Information:  The final, definitive version of this article has been published in the Journal, Proceedings of the Royal Society of Edinburgh: Section A Mathematics, 131 (5), pp 10651089 2001, © 2001 Cambridge University Press. RAE_import_type : Journal article RAE_uoa_type : Pure Mathematics 
Uncontrolled Keywords:  /dk/atira/pure/researchoutput/libraryofcongress/qa 
Subjects:  
Departments:  Faculty of Science and Technology > Mathematics and Statistics 
ID Code:  2394 
Deposited By:  ep_importer 
Deposited On:  01 Apr 2008 08:18 
Refereed?:  Yes 
Published?:  Published 
Last Modified:  09 Dec 2019 02:03 
URI:  https://eprints.lancs.ac.uk/id/eprint/2394 
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