Facta Univ. Ser.: Elec. Energ., vol. 21, No. 3, December 2008, pp. 255-265

Lebesgue Points of Multi-Dimensional Functions

Ferenc Weisz

Abstract: Lebesgue and Walsh-Lebesgue points are introduced for higher dimensional functi proved that a.e. point is a (Walsh)-Lebesgue point of a function f from the space L(log L)d-1. Every function f L(logL)d-1 is Fejer summable at each (Walsh)-Lebesgue point.

Keywords: Lebesgue point, Walsh-Lebesgue point, Walsh functions, Fejér-summability.

1weisz.pdf