SciELO - Scientific Electronic Library Online

 
vol.12 número2Fixed point theory for compact absorbing contractions in extension type spacesOn Semisubmedian Functions and Weak Plurisubharmonicity índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Cubo (Temuco)

versión On-line ISSN 0719-0646

Resumen

CASTRO, L. P  y  SILVA, A. S.. Fredholm Property of Matrix Wiener-Hopf plus and minus Hankel Operators with Semi-Almost Periodic Symbols. Cubo [online]. 2010, vol.12, n.2, pp. 217-234. ISSN 0719-0646.  http://dx.doi.org/10.4067/S0719-06462010000200014.

We will present sufficient conditions for the Fredholm property of Wiener-Hopf plus and minus Hankel operators with different Fourier matrix symbols in the C*-algebra of semialmost periodic elements. In addition, under such conditions, we will derive a formula for the sum of the Fredholm indices of theseWiener-Hopf plus Hankel and Wiener-Hopf minus Hankel operators. Some examples are provided to illustrate the results of the paper.

Palabras llave : Fredholm property; Fredholm index; Wiener-Hopf operator; Hankel operator; semi-almost periodic matrix-valued function.

        · resumen en Español     · texto en Inglés     · pdf en Inglés