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math.RA2018
Cohomology and deformations of module homorphisms
RB Yadav, Liangyun Chen, Yao Ma +1
In this paper, we mainly focus on formal deformation theory of module homomorphisms. We first introduce the cohomology of module homomorphisms and study formal one-parameter deform…
math.FA2018
Geometry of holomorphic vector bundles and similarity of commuting operator tuples
Yingli Hou, Kui Ji, Shanshan Ji +1
In this paper, a new criterion for the similarity of commuting tuples of operators on Hilbert spaces is introduced. As an application, we obtain a geometric similarity invariant of…