Distribution functions, decreasing rearrangements and Lp; spaces

It is necessary in the framework of numerical analysis to be a lot of more careful first of all about the choice of space of functions X to which the solution belongs. In this work, we introduce some useful spaces for example the Orlicz, Lorentz and Lp; spaces. Finally some properties of these spaces are stated.

کلیدواژه ها:

Orlicz space ، Lorentz space ، Lp ، space.