On Orlicz classes defined in terms of associated weight functions

Abstract

N-functions and their growth and regularity properties are crucial in order to introduce and study Orlicz classes and Orlicz spaces. We consider N-functions which are given in terms of so-called associated weight functions. These functions are frequently appearing in the theory of ultradifferentiable function classes and in this setting additional information is available since associated weight functions are defined in terms of a given weight sequence. We express and characterize several known properties for N-functions purely in terms of weight sequences which allows to construct (counter-)examples. Moreover, we study how for abstractly given N-functions this framework becomes meaningful and finally we establish a connection between the complementary N-function and the recently introduced notion of the so-called dual sequence.

40 pages; based on the new citation [17] some results (Thm. 4.1, Thm. 7.12, Thm. 7.18) have been improved and extended, some minor stylistic changes have been applied; this version is accepted for publication in Monatsh. Math

References in corpus (5)

• On subadditivity-like conditions for associated weight functions
• On generalized definitions of ultradifferentiable classes
• The Theorem of Iterates for elliptic and non-elliptic Operators
• Optimal flat functions in Carleman-Roumieu ultraholomorphic classes in sectors
• On inclusion relations between weighted spaces of entire functions