Results 51 to 60 of about 7,600,413 (382)
Matrix geometries emergent from a point [PDF]
Reviews in Mathematical Physics, 2014 We describe a categorical approach to finite noncommutative geometries. Objects in the category are spectral triples, rather than unitary equivalence classes as in other approaches. This enables us to treat fluctuations of the metric and unitary equivalences on the same footing, as representatives of particular morphisms in this category. We then show
D'ANDREA, FRANCESCO +2 more
openaire +5 more sources
Edumatika, 2021 Non-Euclidean Geometry is a complex subject for students. It is necessary to analyze the weaknesses of Euclidean geometry to provide a basis for thinking about the need for learning non-Euclidean geometry.
Khathibul Umam Zaid Nugroho +2 more
doaj +1 more source
Geometry of Quantum Projective Spaces [PDF]
, 2012 In recent years, several quantizations of real manifolds have been studied, in particular from the point of view of Connes' noncommutative geometry. Less is known for complex noncommutative spaces.
D'Andrea, Francesco, Landi, Giovanni
core +1 more source
Polylidar3D-Fast Polygon Extraction from 3D Data
Sensors, 2020 Flat surfaces captured by 3D point clouds are often used for localization, mapping, and modeling. Dense point cloud processing has high computation and memory costs making low-dimensional representations of flat surfaces such as polygons desirable.
Jeremy Castagno, Ella Atkins
doaj +1 more source
Geometrically rational real conic bundles and very transitive actions [PDF]
, 2009 In this article we study the transitivity of the group of automorphisms of real algebraic surfaces. We characterize real algebraic surfaces with very transitive automorphism groups.
Biswas +8 more
core +7 more sources
2D Triangulation of Signals Source by Pole-Polar Geometric Models
Sensors, 2019 The 2D point location problem has applications in several areas, such as geographic information systems, navigation systems, motion planning, mapping, military strategy, location and tracking moves.
Aleksandro Montanha +3 more
doaj +1 more source
True coincidence summing correction factor for point source geometry with PHITS
Nuclear Engineering and Technology, 2023 In this study, it has been shown that the true coincidence summing correction factor can be obtained for the first time using the PHITS Monte Carlo program.
Esra Uyar
doaj +1 more source
Geometry of antimatroidal point sets
, 2008 14 pages, 3 ...
Yulia Kempner, Vadim E. Levit
openalex +4 more sources
A Generalized Hausdorff Distance Based Quality Metric for Point Cloud Geometry [PDF]
International Workshop on Quality of Multimedia Experience, 2020 Reliable quality assessment of decoded point cloud geometry is essential to evaluate the compression performance of emerging point cloud coding solutions and guarantee some target quality of experience.
Alireza Javaheri +3 more
semanticscholar +1 more source
A Geometry Feature Aggregation Method for Point Cloud Classification and Segmentation
IEEE Access, 2021 In spite of the good performance of convolutional neural network (CNN) and graph neural network (GNN) in 3D point cloud classification and segmentation at present, to aggregate local information of point clouds and improve the robustness of geometric ...
Yong Wang, Chenke Yue, Xintong Tang
doaj +1 more source