deletions | additions       diff --git a/Lusztig_4_Quivers_4_1__.md b/Lusztig_4_Quivers_4_1__.md  index ace943b..60b2a94 100644  --- a/Lusztig_4_Quivers_4_1__.md  +++ b/Lusztig_4_Quivers_4_1__.md 
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- 4.5 Canonical exact sequence splits (always) iff M ≅ M' ⋆ M''  - In particular, \( V ≅ V(i) ⋆ Φ_i^-Φ_i^+(V) \)   - Corollary: \( Φ_i^-Φ_i^+(V) ≅ V \) iff \( V ∈ M_i^+Ω \)  - The relationship ⋆ is preserved under the equivalence of categories \( M_i^+Ω ≃ M_i^-s_iΩ M^-s_iΩ  - 4.6 Assume i a sink of Ω, V ∈ MΩ indecomposable but not isomorphic to \( e_i \)  - Then \( V ∈ M_i^+Ω \)  "https://workflowy.com/#/005996c4a75c"