Thirring sends the continuation of his work on electrodynamics.
Thirring, WThirring discusses papers on renormalization by Klein, McCormick and by Cooper.
Thirring, WThis letter is a continuation of Thirring's letter of the 8th July 1957 on identical particles.
Thirring, WTouschek comments on Pauli's work on field equations. He considers one equation in field-free case and problems with invariance of the result.
Touschek, BrunoTouschek writes that he found an error in his paper when he followed Pauli's reference to the reality condition of Fierz. He makes some more comments on his work.
Touschek, BrunoTouschek writes about a paper by Jensen and Steck.
Touschek, BrunoTouschek suggests building isotopic spin into a 4-component spinor theory. He discusses invariance of a theory and construction of an approximate "Heisenberg theory".
Touschek, BrunoTouschek agrees with the introduction of a new index in Pauli's theory. He writes about the discrete mass spectrum in the field-free case as function of total isotopic spin.
Touschek, BrunoTouschek gives "weak" and "strong" postulates on reversibility of field operators for a system of observables as used in his work. He writes about S-matrix elements for irreversible system.
[Touschek, Bruno]