Chronology of Milestone Events in Particle Physics - LANDAU 1959
LANDAU 1959
Landau, L.D.;
On Analytic Properties of Vertex Parts in Quantum Field Theory
JETP 37 (1959) 62;
Nucl. Phys. 13 (1959) 181;
JETP 10 (1960) 45;
Abstracts
A general method of finding the singularities of quantum field theory values on the basis of graph technique is evolved.
Related references
See also R. Karplus, C. M. Sommerfeld, and E. H. Wichman, Phys. Rev. 111 (1958) 1187;
Y. Nambu, Nuovo Cim. 6 (1957) 1064;
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