Displaying similar documents to “A study of Eulerian numbers for permutations in the alternating group.”

Permutations preserving sums of rearranged real series

Roman Wituła (2013)

Open Mathematics

Similarity:

The aim of this paper is to discuss one of the most interesting and unsolved problems of the real series theory: rearrangements that preserve sums of series. Certain hypothesis about combinatorial description of the corresponding permutations is presented and basic algebraic properties of the family 𝔖 0 , introduced by it, are investigated.

Bernstein-type operators on the half line

Antonio Attalienti, Michele Campiti (2002)

Czechoslovak Mathematical Journal

Similarity:

We define Bernstein-type operators on the half line [ 0 , + [ by means of two sequences of strictly positive real numbers. After studying their approximation properties, we also establish a Voronovskaja-type result with respect to a suitable weighted norm.