Classical tilting and $\ddot{I}„$-tilting theory via duplicated algebras

Jonah Berggren, Khrystyna Serhiyenko

$\ddot{I}„$-tilting theory can be thought of as a generalization of the classical tilting theory which allows mutations at any indecomposable summand of a support $\ddot{I}„$-tilting pair. Indee…