New Geometry and Topology PTDC/MAT/101503/2008
Topological Invariants via Differential Geometry PTDC/MAT/098770/2008
Centro de Matemática e Aplicações (CMA)
Astrid Bin. The picture is of the house at Quinta de Regaleira in Sintra. The house is covered in Portuguese and Masonic imagery and symbols. There's a lot of intricate stone ropes and knots like this one, which is a reference to the Portuguese past of sailing and exploration.