activity
20002026
most citedHölder continuity of -minimizers of functionals with generalized Orlicz growth

28 citations · 32 across the 14 of their papers we have counts for

collaborators

14 papers

math.AP2026

Intrinsic Schauder estimates at nearly linear growth

Cristiana De Filippis, Filomena De Filippis, Peter Hästö

We develop a nonlinear potential theoretic framework for Schauder estimates for vector-valued solutions of a broad class of nonautonomous variational problems at nearly linear grow…

math.AP2025

Higher integrability for parabolic PDEs with generalized Orlicz growth

Peter Hästö, Jihoon Ok

We prove higher integrability of the gradient of weak solutions to nonlinear parabolic systems whose prototype is \[ \partial_t u-\mathrm{div}\Big(\frac{φ'(z, |\nabla u|)}{|\nabla…

math.AP2025

Relaxation of quasi-convex functionals with variable exponent growth

Giacomo Bertazzoni, Petteri Harjulehto, Peter Hästö +1

We prove a relaxation result for a quasi-convex bulk integral functional with variable exponent growth in a suitable space of bounded variation type. A key tool is a decomposition…

math.AP2025

Mean oscillation conditions for nonlinear equation and regularity results

Peter Hästö, Mikyoung Lee, Jihoon Ok

We consider general nonlinear elliptic equations of the form \[ \operatorname{div}\, A(x,Du) = 0 \quad \text{in } Ω, \] where satisfies a qu…

math.FA2022

Riesz spaces with generalized Orlicz growth

Peter Hästö, Jonne Juusti, Humberto Rafeiro

We consider a Riesz -variation for functions defined on the real line when is a generalized -function. We show that it generates a quas…

math.FA2019★ 3 cited

Extension in generalized Orlicz spaces

Petteri Harjulehto, Peter Hästö

We prove that a -function can be extended from a domain to all of while preserving crucial properties for harmonic analysis on the generalized Orlicz space $L^…