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Sponsored AI Networking Cookbook: Practical recipes for AI-assisted network automation and development AI Networking Cookbook: Practical recipes for AI-assisted network automation and development

Author

Ikhan Choi

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Preprint Aug 2026

A counterexample to Haagerup's problem on subadditive weights

We construct a subadditive weight on the type I$_\infty$ factor that preserves directed suprema but is not $\sigma$-weakly lower semi-continuous. This provides a counterexample to Haagerup's first problem posed in 1975.

Ikhan Choi, Sunghyeon Jo · 1 citation · ⚡1

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