1. The quantities “order» and «type» of an entire function are defined in eqs. (9) and (10) of the text. Roughly speaking the entire functionf(z) grows for asymptotically large |z| like exp [τ|z|ϱ], where ϱ and τ are respectively the order and type off(z).
2. W. M. Frank andD. J. Land:Journ. Math. Phys.,11, 2041, 2058 (1970).
3. G. Polya andG. Szego:Aufgaben und Lehrsatze aus der Analyse (New York, N. Y., 1945).
4. Handbook of Mathematical Functions (National Bureau of Standards, Washington, D. C., 1964), p. 504.
5. Op. cit. Handbook of Mathematical Functions (National Bureau of Standards, Washington, D. C., 1964), p. 257.