Aleksandra Borówka

activity

20172026

collaborators

3 papers

math.DG2026

Contact variation of almost contact pseudo-metric structures

Aleksandra Borówka, Zuzanna Szancer

For an almost contact pseudo-metric manifold we study a variation of the metric in the spirit of Meli-Ngakeu-Olea. Such variation is defined using a vector field on the manifold an…

math.DG2019

Quaternion-Kähler manifolds near maximal fixed points sets of $S^{1}$ -symmetries

Aleksandra Borówka

Using quaternionic Feix--Kaledin construction we provide a local classification of quaternion-Kähler metrics with a rotating $S^{1}$ -symmetry with the fixed point set submanifold $S$ …

math.DG2017

$S^{6}$ and the geometry of nearly Kähler $6$ -manifolds

Ilka Agricola, Aleksandra Borówka, Thomas Friedrich

We review results on and around the almost complex structure on $S^{6}$ , both from a classical and a modern point of view. These notes have been prepared for the Workshop "(Non)-exis…

Contact variation of almost contact pseudo-metric structures

Quaternion-Kähler manifolds near maximal fixed points sets of S1-symmetries

S6 and the geometry of nearly Kähler 6-manifolds

Quaternion-Kähler manifolds near maximal fixed points sets of $S^{1}$ -symmetries

$S^{6}$ and the geometry of nearly Kähler $6$ -manifolds