Robustness of CSC Sasaki existence under the join operation

Charles P. Boyer; Christina W. Tønnesen-Friedman

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arXiv · 2604.09893

Robustness of CSC Sasaki existence under the join operation

Charles P. Boyer·Christina W. Tønnesen-Friedman

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Abstract

The main purpose of this work is to explore the existence of constant scalar curvature Sasaki metrics in the Sasaki cone of the join of two regular Sasaki manifolds, $M_1$ and $M_2$. Furthermore, we consider some cases of continuous families of extremal Sasaki twins.

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Charles P. Boyer, Christina W. Tønnesen-Friedman. 2026-04-10. Robustness of CSC Sasaki existence under the join operation. https://arxiv.org/abs/2604.09893

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