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math.RT2022
-Dold-Kan correspondence via representation theory
Chiara Sava
We give a purely derivator-theoretical reformulation and proof of a classic result of Happel and Ladkani, showing that it occurs uniformly across stable derivators and it is then i…
math.RT2022
Equivalent definitions of the preprojective algebra
Chiara Sava
Following the article of C. M. Ringel we introduce preprojective algebras of a Dynkin quiver starting from three definitions which, despite concerning completely different alge…