A fundamental condition for harmonic analysis in anisotropic generalized Orlicz spaces

Abstract

Anisotropic generalized Orlicz spaces have been investigated in many recent papers, but the basic assumptions are not as well understood as in the isotropic case. We study the greatest convex minorant of anisotropic $\Phi$-functions and prove the equivalence of two widely used conditions in the theory of generalized Orlicz spaces, usually called (A1) and (M). This provides a more natural and easily verifiable condition for use in the theory of anisotropic generalized Orlicz spaces for results such as Jensen's inequality which we obtain as a corollary.

An earlier version of this paper was titled "Anisotropic generalized Orlicz spaces"

References in corpus (1)

• Regularity theory for non-autonomous partial differential equations without Uhlenbeck structure

Cited by in corpus (4)

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• Monotone approximation of differentiable convex functions with applications to general minimization problems