Umbral calculus (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Umbral calculus" in English language version.

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1uni-goettingen.de

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1sciencedirect.com

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doi.org

Rota, G. C.; Kahaner, D.; Odlyzko, A. (1973). "On the foundations of combinatorial theory. VIII. Finite operator calculus". Journal of Mathematical Analysis and Applications. 42 (3): 684. doi:10.1016/0022-247X(73)90172-8.

sciencedirect.com

G.-C. Rota and J. Shen, "On the Combinatorics of Cumulants", Journal of Combinatorial Theory, Series A, 91:283–304, 2000.

uni-goettingen.de

resolver.sub.uni-goettingen.de

*Blissard, John (1861). "Theory of generic equations". The Quarterly Journal of Pure and Applied Mathematics. 4: 279–305.