Results 161 to 170 of about 1,495,511 (374)
Structural theorems for topological actions of Z2-torion real, complex and quaternionic projective spaces [PDF]
, 1975 Wu Yi Hsiang
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Convex cocompact actions in real projective geometry
, 2018 We study a notion of convex cocompactness for (not necessarily irreducible) discrete subgroups of the projective general linear group acting on real projective space, and give various characterizations.
Danciger, Jeffrey +2 more
core
Real hypersurfaces of a complex projective space [PDF]
Bulletin of the Australian Mathematical Society, 1986 We study real hypersurfaces M of a complex projective space and show that a condition on the derivative of the Ricci Tensor of M implies M is locally homogeneous with two or three principal curvatures.
openaire +2 more sources
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose This study quantitatively evaluates bladder changes and their dosimetric impact during the on‐couch adaptive process on a commercial CBCT‐based online adaptive radiotherapy (CT‐gART) platform. Methods Data from 183 fractions of ten patients receiving online ART for pelvic cancers were analyzed retrospectively.
Ingrid Valencia Lozano +7 more
wiley +1 more source
Real hypersurfaces in a complex projective space with constant principal curvatures [PDF]
, 1975 Ryoichi Takagi
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Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose Due to the tight curvature in their design, ring applicators are usually associated with large positioning errors. The standard practice to correct for these deviations based on global offsets may not be sufficient to comply with the recommended tolerance.
Leon G. Aldrovandi +3 more
wiley +1 more source
A Flexile and High Precision Calibration Method for Binocular Structured Light Scanning System
The Scientific World Journal, 2014 3D (three-dimensional) structured light scanning system is widely used in the field of reverse engineering, quality inspection, and so forth. Camera calibration is the key for scanning precision.
Jianying Yuan, Qiong Wang, Bailin Li
doaj +1 more source
Multi-convex sets in real projective spaces and their duality [PDF]
arXiv, 2010 We study intersections of projective convex sets in the sense of Steinitz. In a projective space, an intersection of a nonempty family of convex sets splits into multiple connected components each of which is a convex set. Hence, such an intersection is called a multi-convex set.
arxiv
The space of paths in complex projective space with real boundary conditions
, 2013 We compute the integral homology of the space of paths in $\mathbb{C}P^n$ with endpoints in $\mathbb{R}P^n$, $n \ge 1$ and its algebra structure with respect to the Pontryagin-Chas-Sullivan product with $\mathbb{Z}/2$-coefficients.Comment: 33 pages, 6 ...
Hingston, Nancy, Oancea, Alexandru
core
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose This study evaluates the dosimetric and geometric precision of a virtual cone technique using CBCT‐based polymer gel dosimetry, enabling radiation delivery, and imaging readout within an identical spatial coordinate system. Methods We created a C# script for a virtual cone technique that generates a treatment plan with 10 gantry arcs ...
Tenzin Kunkyab +6 more
wiley +1 more source