From Wikipedia, the free encyclopedia

In mathematics, Jacobsthal sums are finite sums of Legendre symbols related to Gauss sums. They were introduced by Jacobsthal ( 1907).

Definition

The Jacobsthal sum is given by

where p is prime and () is the Legendre symbol.

References

  • Berndt, Bruce C.; Evans, Ronald J. (1979), "Sums of Gauss, Eisenstein, Jacobi, Jacobsthal, and Brewer", Illinois Journal of Mathematics, 23 (3): 374–437, ISSN  0019-2082, MR  0537798, Zbl  0393.12029
  • Jacobsthal, E. (1907), "Über die Darstellung der Primzahlen der Form 4n + 1 als Summe zweier Quadrate", Journal für die reine und angewandte Mathematik: 238–245, ISSN  0075-4102, JFM  38.0238.03

Further reading

  • Storer, Thomas (1967), Cyclotomy and difference sets, Chicago: Markham Publishing Company, Zbl  0157.03301
From Wikipedia, the free encyclopedia

In mathematics, Jacobsthal sums are finite sums of Legendre symbols related to Gauss sums. They were introduced by Jacobsthal ( 1907).

Definition

The Jacobsthal sum is given by

where p is prime and () is the Legendre symbol.

References

  • Berndt, Bruce C.; Evans, Ronald J. (1979), "Sums of Gauss, Eisenstein, Jacobi, Jacobsthal, and Brewer", Illinois Journal of Mathematics, 23 (3): 374–437, ISSN  0019-2082, MR  0537798, Zbl  0393.12029
  • Jacobsthal, E. (1907), "Über die Darstellung der Primzahlen der Form 4n + 1 als Summe zweier Quadrate", Journal für die reine und angewandte Mathematik: 238–245, ISSN  0075-4102, JFM  38.0238.03

Further reading

  • Storer, Thomas (1967), Cyclotomy and difference sets, Chicago: Markham Publishing Company, Zbl  0157.03301

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