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机译:Category of G-Groups and its Spectral Category
Univ Autonoma Metropolitana, Dept Matemat, Div Ciencias Basicas & Ingn, Unidad Iztapalapa, Mexico City, DF, Mexico;
Univ Padua, Dipartimento Matemat, Via Trieste 63, I-35121 Padua, Italy;
Group actions; Semi-abelian categories; Spectral categories;