Sobre operador escalera y ecuación diferencial asociada a los polinomios clásicos

Abstract

A theoretical synthesis is made in some areas of the mathematical views during the undergraduate to have a conceptual base of tools necessary for the monograph development. Following this, a compendium of the general theory of orthogonal polynomials is presented, the relationship of three terms is demonstrated, the Christoffel-Darboux formula is demonstrated, the Kernel of polynomials are presented, and the families of orthogonal polynomials of Hermite and Laguerre are presented in detail. Finally, the definition of the Fredholm determinant is presented, the integral operator defined by the subtraction of two operators is presented, the differential recurrence relationship satisfied by the orthogonal polynomial systems with respect to a weight function under certain integration criteria is demonstrated, deduce two operators called creation and annihilation, the relationship between these two operators, the application of these operators in the Hermite orthogonal polynomials and deduce the second order differential equation satisfied by the orthogonal polynomial systems.