Armin Schikorra

activity

20222026

most citedOn uniqueness for half-wave maps in dimension d >= 3

4 citations · 4 across the 6 of their papers we have counts for

collaborators

Showing 2025Show all

2 papers · 1 filter

math.FA2025

Non-improvability of sharp endpoint estimates

Zdeněk Mihula, Luboš Pick, Armin Schikorra

For an integer $n$ and the parameter $γ \in (0, n)$ , the Riesz potential $I_{γ}$ is known to take boundedly $L^{1} (R^{n})$ into $L^{\frac{n}{n - γ}, \infty} (R^{n})$ , and also t…

math.AP2025

Local well-posedness for cubic fractional Schrödinger equations with derivatives on the right-hand side

Ahmed Dughayshim, Silvino Reyes Farina, Armin Schikorra

For $s \in (\frac{1}{2}, 1]$ we investigate well-posedness of the equation \[ \left ( i \partial_t + (-Δ)^{s} \right ) u = \left (|D|^{1-2s} |u|^2 \right)\ |D|^{2s-1} u \] under sma…