Robuta

https://arxiv.org/abs/1112.3320
Abstract page for arXiv paper 1112.3320: Fullerene-like spheres with faces of negative curvature
negative curvaturefullerenelikespheresfaces
https://www.carmin.tv/fr/video/quaternion-kahler-manifolds-of-non-negative-sectional-curvature
sectional curvaturequaternionmanifoldsnonnegative
https://www.mdpi.com/1424-8220/20/21/6084
We demonstrate a compact all-fiber oxygen sensor using photothermal interferometry with a short length (4.3 cm) of hollow-core negative curvature fibers. The...
oxygen gasphotothermal spectroscopysensinghollowcore