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Structural Classes for Chollet's Permanent Conjecture
In 1982, Chollet conjectured that $\operatorname{per}(A\circ B)\leq \operatorname{per}(A)\operatorname{per}(B)$ for Hermitian positive semidefinite matrices $A,B$, where $\circ$ denotes the Hadamard (entrywise) product. In this paper, we study natural structural classes for which the conjecture hold
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