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Question

Math 6210 • Real Analysis

1992 • Question 10

Let \(H(D)\) be the space of holomorphic functions on an open connected set \(D\subset \mathbb C\). Suppose \(f_n\) is a sequence in \(H(D)\) converging to a function \(f\) uniformly on compact subsets. Suppose also that \(f\) is a nonconstant function. Let \(a\in D\), \(\alpha =f(a)\).

Show there is a sequence \(a_n\in D\) which converges to \(a\), such that \(f_n(a_n)=\alpha \) for each \(n\).

Raw LaTeX

Let \(H(D)\) be the space of holomorphic functions on an open
connected set \(D\subset\mathbb C\). Suppose \(f_n\) is a sequence in \(H(D)\)
converging to a function \(f\) uniformly on compact subsets. Suppose also that
\(f\) is a nonconstant function. Let \(a\in D\), \(\alpha=f(a)\).

Show there is a sequence \(a_n\in D\) which converges to \(a\), such that
\(f_n(a_n)=\alpha\) for each \(n\).