Geodesic
Anomalies in the two-dimensional $\sigma$ model with fermions
Teoretičeskaâ i matematičeskaâ fizika, Tome 55 (1983) no. 3, pp. 401-406 Cet article a éte moissonné depuis la source Math-Net.Ru

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In the framework of the two-dimensional model of a chiral field augmented by a special interaction with fermions the anomaly of the axial current and the zerofrequency mode in the instanton field are found. 
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R. G. Ismagilov; V. A. Franke. Anomalies in the two-dimensional $\sigma$ model with fermions. Teoretičeskaâ i matematičeskaâ fizika, Tome 55 (1983) no. 3, pp. 401-406. http://geodesic.mathdoc.fr/item/TMF_1983_55_3_a5/

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