On the main diagonal of sheffer function
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J. Demetrovics
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Article
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1978
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Elsevier Science
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English
โ 473 KB
Necessary and sufi&nt conditions: far a one variable function to be the main diagonal of a Sbeffer function are given and estimates are obtained for the number of Sheffer furktwns. Many papers [l-9] dealing with Sheffer functions have recently jypeared. In these papeij: the authors deal with criter