J. Lang

collaborators

3 papers

math.CA2026

Characterization of the boundedness of the segment multiplier on rearrangement-invariant spaces

Miguel F. Barea-FernÃ¡ndez, Ron Kerman, Jan Lang +1

Given a rearrangement-invariant (r.i.) space X, we show that the segment multiplier, the truncated Hilbert transform, and the discrete Hilbert transform (on the associated discreti…

math.AP2026

Limit as $p (x) \to \infty$ of $p (x)$ -Harmonic functions for unbounded $p (x)$

Behzad Djafari Rouhani, Jan Lang, Osvaldo MÃ©ndez

It is shown that if $p_{n}$ is a sequence of continuous, unbounded exponents on a bounded, smooth domain $I^c ◯ \subset R^{n}$ with $1 < x \in I^c ◯ in f p_{n} (x)$ and $p_n\right…

math.FA2025

Quantitative analysis of optimal Sobolev-Lorentz embeddings with $I^\pm$ -homogeneous weights

Petr Gurka, Jan Lang, ZdenÄk Mihula

Optimal weighted Sobolev-Lorentz embeddings with homogeneous weights in open convex cones are established, with the exact value of the optimal constant. These embeddings are non-co…

Characterization of the boundedness of the segment multiplier on rearrangement-invariant spaces

Limit as p(x)→∞ of p(x)-Harmonic functions for unbounded p(x)

Quantitative analysis of optimal Sobolev-Lorentz embeddings with I^±-homogeneous weights

Limit as $p (x) \to \infty$ of $p (x)$ -Harmonic functions for unbounded $p (x)$

Quantitative analysis of optimal Sobolev-Lorentz embeddings with $I^\pm$ -homogeneous weights