The von Neumann inequality for $3\times3$ matrices in the unit Euclidean ball
Autor: | Piekarz, Dariusz |
---|---|
Rok vydání: | 2023 |
Předmět: | |
Druh dokumentu: | Working Paper |
Popis: | It is shown that the constant $c_{d,3}$ in von Neumann's inequality for d-tuples of commutative and row contractive $3\times3$ matrices, as proved by Hartz, Richter, and Shalit in [2], is independent of the size of the d-tuple. A numerical estimation of the constant is provided. Comment: The article was accepted in the Israel Journal of Mathematics |
Databáze: | arXiv |
Externí odkaz: |