Fixed points for group actions on 2-dimensional affine buildings
@article{Schillewaert2020FixedPF, title={Fixed points for group actions on 2-dimensional affine buildings}, author={Jeroen Schillewaert and Koen Struyve and Anne Thomas}, journal={arXiv: Group Theory}, year={2020} }
We prove a local-to-global result for fixed points of groups acting on affine buildings (possibly non-discrete) of types $\tilde{A}_1\times \tilde{A}_1, \tilde{A}_2$ or $\tilde{C}_2$. In the discrete case, our theorem establishes a conjecture by Marquis.
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