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math.RT2025
F-invariant and E-invariant
Peigen Cao
-invariant for a pair of good elements (e.g. cluster monomials) in cluster algebras is introduced by the author in a previous work. A key feature of -invariant is that it is…
math.RT2025
Modules determined by their Newton polytopes
Peigen Cao
In the -tilting theory, there exist two classes of foundamental modules: indecomposable -rigid modules and left finite bricks. In this paper, we prove the indecomposable -…