activity
19982026
most citedA remark on Kähler metrics of constant scalar curvature on ruled complex surfaces

8 citations · 13 across the 11 of their papers we have counts for

collaborators

23 papers

math.DG2026

The toric CR Yamabe problem

Eveline Legendre, Carlo Scarpa, Christina W. Tønnesen-Friedman

We study the equivariant CR Yamabe problem for a fixed-point-free torus action on a co-oriented compact contact manifold. Such examples arise naturally in the study of Sasakian man…

math.DG2026

Robustness of CSC Sasaki existence under the join operation

Charles P. Boyer, Christina W. Tønnesen-Friedman

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, and $M_2…

math.DG2024

Twins in K{ä}hler and Sasaki geometry

Charles P. Boyer, Hongnian Huang, Eveline Legendre +1

We introduce the notions of weighted extremal K{ä}hler twins together with the related notion of extremal Sasaki twins. In the Kähler setting this leads to a generalization of the…

math.DG2023

Sasakian Geometry on Sphere Bundles II: Constant Scalar Curvature

Charles P. Boyer, Christina W. Tønnesen-Friedman

In a previous paper [BTF21] the authors employed the fiber join construction of Yamazaki [Yam99] together with the admissible construction of Apostolov, Calderbank, Gauduchon, and…

math.DG2022

Existence and Non-Existence of Constant Scalar Curvature and Extremal Sasaki Metrics

Charles P. Boyer, Hongnian Huang, Eveline Legendre +1

We discuss the existence and non-existence of constant scalar curvature, as well as extremal, Sasaki metrics. We prove that the natural Sasaki-Boothby-Wang manifold over the admiss…

math.DG2021

Constant Scalar Curvature Sasaki Metrics and Projective Bundles

Charles P. Boyer, Christina W. Tønnesen-Friedman

In this paper we consider the Boothby-Wang construction over twist 1 stage 3 Bott orbifolds given in terms of the log pair . We give explicit constant scalar…