Abstract
The most important geometries of this book are of Coxeter type (cf. Definition 2.4.2). Their ‘building blocks’, that is, their rank two residues, are the generalized polygons (cf. Definition 2.2.7), which are precisely the rank two geometries of Coxeter type. In Chap. 4, we studied thin chamber systems of Coxeter type M and found that these are quotients of the very nice and regular universal chamber system \(\mathcal{C}(M)\) for Coxeter systems of type M. In this chapter, we study special chamber systems of Coxeter type, called buildings, in which \(\mathcal{C}(M)\) frequently occurs as a subsystem, which is called apartment.
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Buekenhout, F., Cohen, A.M. (2013). Buildings. In: Diagram Geometry. Ergebnisse der Mathematik und ihrer Grenzgebiete. 3. Folge / A Series of Modern Surveys in Mathematics, vol 57. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-34453-4_11
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