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On 2-categories of extensions
D. B. Kaledinab a Steklov Mathematical Institute of Russian Academy of Sciences, Moscow
b National Research University Higher School of Economics, Moscow, Russia
Received: 28.05.2025 and 30.07.2025
Linking options:
https://www.mathnet.ru/eng/sm10354https://doi.org/10.4213/sm10354
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