On linear differential equations involving a para-Grassmann variable.
Motzkin numbers of higher rank: generating function and explicit expression.
On a new family of generalized Stirling and Bell numbers.
On a generalization of duality triads
Some aspects of duality triads introduced recently are discussed. In particular, the general solution for the triad polynomials is given. Furthermore, a generalization of the notion of duality triad is proposed and some simple properties of these generalized duality triads are derived.
Duality triads of higher rank: Further properties and some examples
It is shown that duality triads of higher rank are closely related to orthogonal matrix polynomials on the real line. Furthermore, some examples of duality triads of higher rank are discussed. In particular, it is shown that the generalized Stirling numbers of rank r give rise to a duality triad of rank r.
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