Cutting Holes into the Trash and Other Stories

OFFICE Kersten Geers David Van Severen is an architecture studio based in Flanders. Their work precisely corresponds to their native landscape: the mediocre, confused and domestic sprawl of contemporary Flanders, here understood as one of the many episodes of a similar global condition, an evenly covered field, more or less coinciding with the entire planet. The rarefied rooms repeatedly designed by OFFICE Kersten Geers David Van Severen cannot be thought to be outside of this field. While the rooms leave out the urban debris accumulated in this landscape, they would not make sense with- out it. There would be no pressure, no accumulated tension. The rooms extract power from the dirt around them; they burn into void the raw energy accumulated in the dirt. The rooms are defined by the absence of trash, and so trash plays a significant role in the definition of the rooms. Trash is the substance whose absence creates architecture. This also qualifies the architects’ method as potentially universal. It could probably work just as well in Egypt or Bangladesh, simply burning a different kind of trash, operating in a different degree of harshness

Riemannian metrics on the moduli space of GHMC anti-de Sitter structures

In this short note we explain how to adapt the construction of two Riemannian metrics on the $\mathrm{SL}(3,\mathbb{R})$-Hitchin component to the deformation space of globally hyperbolic anti-de Sitter structures: the pressure metric and the Loftin metric (studied by Qiongling Li). We show that the former is degenerate and we characterize its degenerate locus, whereas the latter is nowhere degenerate and the Fuchsian locus is a totally geodesic copy of Teichm\"uller space endowed with a multiple of the Weil-Petersson metric.Comment: 18 page

Pseudo-K\"ahler structure on the SL(3,R)\mathrm{SL}(3,\mathbb{R})-Hitchin component and Goldman symplectic form

The aim of this paper is to show the existence and give an explicit description of a pseudo-Riemannian metric and a symplectic form on the $\mathrm{S}\mathrm{L}(3,\mathbb{R})$-Hitchin component, both compatible with Labourie and Loftin's complex structure. In particular, they give rise to a mapping class group invariant pseudo-K\"ahler structure on a neighborhood of the Fuchsian locus, which restricts to a multiple of the Weil-Petersson metric on Teichm\"uller space. By comparing our symplectic form with Goldman's $\boldsymbol{\omega}_G$, we prove that the pair $(\boldsymbol{\omega}_G, \mathbf{I})$ cannot define a K\"ahler structure on the Hitchin component.Comment: Title and introduction changed. Added a result regarding Goldman symplectic for