Yet another variant of the Drygas functional equation on groups



Título del documento: Yet another variant of the Drygas functional equation on groups
Revista: Proyecciones (Antofagasta)
Base de datos: PERIÓDICA
Número de sistema: 000405879
ISSN: 0716-0917
Autores: 1
Instituciones: 1University of Louisville, Department of Mathematics, Louisville, Kentucky. Estados Unidos de América
Año:
Periodo: Mar
Volumen: 36
Número: 1
Paginación: 13-27
País: Chile
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico
Resumen en inglés Let G be a group and C the field of complex numbers. Suppose σ1, σ2 : G → G are endomorphisms satisfying the condition σi(σi(x)) = x for all x in G and for i = 1, 2. In this paper, we find the central solution f : G → C of the equation f(xy) + f(σ1(y)x) = 2f(x) + f(y) + f(σ2(y)) for all x, y ∈ G which is a variant of the Drygas functional equation with two involutions. Further, we present a generalization the above functional equation and determine its central solutions. As an application, using the solutions of the generalized equation, we determine the solutions f, g, h, k : G×G → C of the functional equation f(pr, qs) + g(sp, rq)=2f(p, q) + h(r, s) + k(s, r) when f satisfies the condition f(pr, qs) = f(rp, sq) for all p, q, r, s ∈ G
Disciplinas: Matemáticas
Palabras clave: Matemáticas puras,
Ecuaciones funcionales,
Desigualdades,
Teoría de grupos
Keyword: Mathematics,
Pure mathematics,
Functional equations,
Inequalities,
Group theory
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