Joachim Krieger

activity

20192026

most citedSmall data global regularity for half-wave maps in

n = 4

dimensions

1 citations · 1 across the 3 of their papers we have counts for

collaborators

3 papers

math.AP2026

Long finite time bubble trees for two co-rotational wave maps

Joachim Krieger, José M. Palacios

We show that the energy critical Wave Maps equation from $R^{2 + 1}$ into $S^{2}$ , restricted to the $k = 2$ co-rotational setting, admits arbitrarily large numbers of…

math.AP2025

Concentric bubbles concentrating in finite time for the energy critical wave maps equation

Jacek Jendrej, Joachim Krieger

We show that the energy critical Wave Maps equation from $R^{2 + 1}$ to $S^{2}$ and restricted to the co-rotational setting with co-rotation index $k = 2$ admits fini…

math.AP2019★ 1 cited

Small data global regularity for half-wave maps in $n = 4$ dimensions

Anna Kiesenhofer, Joachim Krieger

We prove that the half-wave maps problem on $R^{4 + 1}$ with target $S^{2}$ is globally well-posed for smooth initial data which are small in the critical $l^{1}$ based Besov sp…

Long finite time bubble trees for two co-rotational wave maps

Concentric bubbles concentrating in finite time for the energy critical wave maps equation

Small data global regularity for half-wave maps in n=4 dimensions

Small data global regularity for half-wave maps in $n = 4$ dimensions