arXiv subjects

Tian-Xiao He

Publications and source records attributed to Tian-Xiao He.

20 records · Page 2Linked to original sources

arXiv2013

Use Impulse Response Sequences in the Construction of Number Sequence Identities

We define impulse response sequence in the set of all linear recurring sequences satisfying a linear recurrence relation of order $r$. The generating function and expression of the impulse response sequence are presented. Some identities of impulse response sequences including a type of nonlinear expressions are established. The interrelationship between the impulse response sequence and other linear recurring sequences in the same set is given, which is used to transfer the identities of impulse response sequences to those of the linear recurring sequences in the same set. Some applications of impulse response sequences to the structure of Stirling numbers of the second order, the Wythoff array, and the Boustrophedon transform are studied.

math.CO↗

arXiv2011

Generalized Stirling Numbers and Generalized Stirling Functions

Here presented is a unified approach to Stirling numbers and their generalizations as well as generalized Stirling functions by using generalized factorial functions, $k$-Gamma functions, and generalized divided difference. Previous well-known extensions of Stirling numbers due to Riordan, Carlitz, Howard, Charalambides-Koutras, Gould-Hopper, Hsu-Shiue, Tsylova Todorov, Ahuja-Enneking, and Stirling functions introduced by Butzer and Hauss, Butzer, Kilbas, and Trujilloet and others are included as particular cases of our generalization. Some basic properties related to our general pattern such as their recursive relations and generating functions are discussed. Three algorithms for calculating the Stirling numbers based on our generalization are also given, which include a comprehensive algorithm using the characterization of Riordan arrays.

math.CO↗