Characterization of generalized Orlicz spaces

Rita Ferreira, Peter Hästö, Ana Margarida Ribeiro

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


The norm in classical Sobolev spaces can be expressed as a difference quotient. This expression can be used to generalize the space to the fractional smoothness case. Because the difference quotient is based on shifting the function, it cannot be used in generalized Orlicz spaces. In its place, we introduce a smoothed difference quotient and show that it can be used to characterize the generalized Orlicz-Sobolev space. Our results are new even in Orlicz spaces and variable exponent spaces.
Original languageEnglish (US)
Pages (from-to)1850079
JournalCommunications in Contemporary Mathematics
StatePublished - Oct 11 2018

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KAUST Repository Item: Exported on 2020-10-01


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