Deformation spaces of real projective structures on Coxeter 3-orbifolds (with some survey)

A real projective structure on a 3-orbifold is given by locally modeling the orbifold by real projective geometry. • We present some methodology to study Coxeter groups which are fundamental groups of 3-orbifolds with representations in SL±(4,R) and deformation spaces. • These examples give us nontrivial deformation spaces of projective structures.