5 papers
Chemical Tracers for 3D Atmospheric Asymmetries on WASP-69 b
Nidhi Bangera, Ludmila Carone, Vikas Soni +6
Warm giant exoplanets exhibit strong three-dimensional temperature contrasts that can significantly alter atmospheric chemistry through quenching and photochemistry, yet transmissi…
Shapes of surfaces that contain a great and a small circle through each point
Niels Lubbes
We classify the topological types of surfaces in the 3-dimensional unit sphere that contain both a great and a small circle through each point. In particular, these surfaces are ho…
Irreducible components of sets of points in the plane that satisfy distance conditions
Niels Lubbes, Mehdi Makhul, Josef Schicho +1
For a given graph whose edges are labeled with general real numbers, we consider the set of functions from the vertex set into the Euclidean plane such that the distance between th…
Self-intersections of surfaces that contain two circles through each point
Niels Lubbes
We classify the singular loci of real surfaces in three-space that contain two circles through each point. We characterize how a circle in such a surface meets this loci as it move…
Calibrating Figures
Niels Lubbes, Josef Schicho
It is known that a camera can be calibrated using three pictures of either squares, spheres, or surfaces of revolution. We give a new method to calibrate a camera with the picture…