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    • CommentRowNumber1.
    • CommentAuthorUrs
    • CommentTimeJan 18th 2020

    added these references, and added their doi etc.:

    Early speculations trying to model the electron by a relativistic membrane:

    • {#Dirac62} Paul Dirac, An Extensible Model of the Electron, Proc. Roy. Soc. A268, (1962) 57-67 (jstor:2414316)

    • Paul Dirac, The motion of an Extended Particle in the Gravitational Field, in Relativistic Theories of Gravitation, Proceedings of a Conference held in Warsaw and Jablonna, July 1962, ed. L. Infeld, P. W. N. Publishers, 1964, Warsaw, 163-171; discussion 171-175 (spire:1623740)

    • Paul Dirac, Particles of Finite Size in the Gravitational Field, Proc. Roy. Soc. A270, (1962) 354-356 (doi:10.1098/rspa.1962.0228)

    diff, v5, current

    • CommentRowNumber2.
    • CommentAuthorUrs
    • CommentTimeSep 1st 2023

    added (here) this quote:

    In mathematical theories the question of notation, while not of primary importance, is yet worthy of careful consideration, since a good notation can be of great value in helping the development of a theory, by making it easy to write down those quantities or combinations of quantities that are important, and difficult or impossible to write down those that are unimportant.

    diff, v10, current