A Late Recompense: The Rediscovered Monumental Octagon at Pergamon

Medical services at the Olympics: a monumental challenge.

Meshing the hyperbolic octagon

This short report describes a preliminary study of a method computing meshes of the standard hyperbolic octagon that respects its symmetries. A prototype software was written, using the 2D meshing package of the CGAL library [1, 10] and a software computing hyperbolic triangulations, currently under development [4]. Key-words: Hyperbolic geometry, Poincaré disk, Schwarz triangle, mesh ∗ This wo...

The Octagon Abstract Domain

This article presents the octagon abstract domain, a relational numerical abstract domain for static analysis by abstract interpretation. It allows representing conjunctions of constraints of the form ±X ± Y ≤ c where X and Y range among program variables and c is a constant in Z, Q, or R automatically inferred. Abstract elements are represented using modified Difference Bound Matrices and we u...

Pergamon Neural Networks

Prenatal development of the primary visual cortex leads to simple cells with spatially distinct and oriented ON and OFF subregions. These simple cells are organized into spatial maps of orientation and ocular dominance that exhibit singularities, fractures, and linear zones. On a finer spatial scale, simple cells occur that are sensitive to similar orientations but opposite contrast polarities,...

Moraxella catarrhalis - a rediscovered pathogen

Original Article Moraxella catarrhalis lower respiratory tract infection Beta Lactamase and Pneumonia