An elementary proof of Chollet’s permanent conjecture for 4 × 4 real matrices
A proof of the statement per(A ∘ B) ≤ per(A)per(B) is given for 4 × 4 positive semidefinite real matrices. The proof uses only elementary linear algebra and a rather lengthy series of simple inequalities.
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| Format: | Article |
| Language: | English |
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De Gruyter
2021-01-01
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| Series: | Special Matrices |
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| Online Access: | https://doi.org/10.1515/spma-2020-0126 |