Silting reduction, relative AGK's construction and Higgs construction
This paper introduces Calabi--Yau quadruples to demonstrate that their associated Higgs categories are -Calabi--Yau Frobenius extriangulated categories with canonical -cluster-tilting subcategories, thereby proving that both relative Amiot--Guo--Keller and Higgs constructions transform silting reduction into Calabi--Yau reduction.