Decomposition of idempotent 2-cocycles
نویسندگان
چکیده
Let $L$ be a finite Galois field extension of $K$ with group $G$. We decompose any idempotent 2-cocycle $f$ using sequences descending two-sided ideals the corresponding weak crossed product algebra $A_f$. specialize results in
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ژورنال
عنوان ژورنال: Colloquium Mathematicum
سال: 2023
ISSN: ['0010-1354', '1730-6302']
DOI: https://doi.org/10.4064/cm8720-3-2022