Geodesic
Sigma models as Gross--Neveu models.~II
Teoretičeskaâ i matematičeskaâ fizika, Tome 217 (2023) no. 3, pp. 499-514

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We summarize some (mostly geometric) facts underlying the relation between $2$D integrable sigma models and generalized Gross–Neveu models, emphasizing connections to the theory of nilpotent orbits, Springer resolutions, and quiver varieties. This is meant to shed light on the general setup when this correspondence holds.
Keywords: sigma model, nilpotent orbit.
Mots-clés : Gross–Neveu model 
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     author = {D. V. Bykov},
     title = {Sigma models as {Gross--Neveu} {models.~II}},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {499--514},
     publisher = {mathdoc},
     volume = {217},
     number = {3},
     year = {2023},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2023_217_3_a4/}
}
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D. V. Bykov. Sigma models as Gross--Neveu models.~II. Teoretičeskaâ i matematičeskaâ fizika, Tome 217 (2023) no. 3, pp. 499-514. http://geodesic.mathdoc.fr/item/TMF_2023_217_3_a4/