Operational identities for circular and hyperbolic functions and their generalizations.
Operational relations related to a function defined by a generalized Rodrigues' formula.
Some relations satisfied by Hermite-Hermite matrix polynomials
The classical Hermite-Hermite matrix polynomials for commutative matrices were first studied by Metwally et al. (2008). Our goal is to derive their basic properties including the orthogonality properties and Rodrigues formula. Furthermore, we define a new polynomial associated with the Hermite-Hermite matrix polynomials and establish the matrix differential equation associated with these polynomials. We give the addition theorems, multiplication theorems and summation formula for the Hermite-Hermite...
Study of a complete abstract differential equation of elliptic type with variable operator coefficients, I.
Über orthogonalitätserhaltende Operatoren
Введение в теорию -преобразований
Операторное исчисление, основанное на формуле Коши-Грина
Формула Карлемана для функций от матриц