Sarah Kistner

collaborators

3 papers

math.AP2026

Existence of a stable shrinker for the corotational harmonic map heat flow in higher space dimensions

Johannes Angerer, Sarah Kistner, Birgit Schörkhuber

We study singularity formation for the heat flow of harmonic maps from $R^{d}$ into $S^{d}$ in supercritical dimensions $d \in {3, 4, 5, 6}$ . It is well known that in each of…

math.AP2026

Stable blowup profile for a semilinear heat equation with spatially inhomogeneous nonlinearity

Irfan Glogić, Sarah Kistner, Birgit Schörkhuber

We study the focusing semilinear heat equation with an additional defocusing Hénon-type nonlinearity, the coupling of which is measured by a constant $c > 0$ . For $c \in (0, c^{*})$ , t…

math.AP2023

Existence and stability of shrinkers for the harmonic map heat flow in higher dimensions

Irfan Glogić, Sarah Kistner, Birgit Schörkhuber

We study singularity formation for the heat flow of harmonic maps from $R^{d}$ . For each $d \geq 4$ , we construct a compact, $d$ -dimensional, rotationally symmetric target manifold…