Corollary 23.1.40.09DD8DF2EF76 The Hopf metric satisfies
\[ v_-(\omega )=6,\qquad v_+(\omega )=+\infty . \]
09DD8DF2EF76Corollary 23.1.40.09DD8DF2EF76 The Hopf metric satisfies
Proof. The lower bound $v_-(\omega )\geq 6$ follows from (23.1.39), and it is attained by constants. Theorem 23.1.1 gives $v_+(\omega )=+\infty $. $\square$
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