Results 61 to 70 of about 4,755,624 (270)
Atmosphere, 2021 The reparameterization of the geometry-free and geometry-based approaches to derive single-site ionospheric delays using Global Navigation Satellite System (GNSS) measurements is described.
Sijing Liu +4 more
doaj +1 more source
LIVING THE GEOMETRY: DIALOGUES BETWEEN THE LINE AND THE CURVE
EGA, 2012 The geometry has been one of the key tools used by twentieth century architects. If the research is delimitated by relationship between two of the most important elements of it, the straight line and the curve by mean of the study of three paradigmatic ...
Juan Pedro Sanz Alarcón +2 more
doaj +1 more source
Semi-algebraic geometry of common lines [PDF]
Research in the Mathematical Sciences, 2014 Pre-print, comments ...
openaire +3 more sources
Nonintrusive overhead‐line current detection using a vertical magnetic‐field sensor array
IET Generation, Transmission & Distribution, 2023 With the growing infrastructure for overhead lines, the demand for overhead‐line condition‐monitoring technologies has become increasingly urgent. Traditional current transformers used to measure three‐phase currents are bulky and difficult to install ...
Kun‐Long Chen +2 more
doaj +1 more source
Geometry of the line space associated to a given dual ruled surface
AIMS Mathematics, 2022 As a continuation to our results in [1], we study the dual ruled surface defined on the set of dual numbers. The idea of the dual part are defined similar to quaternion space. The dual part of this represents a ruled dual submanifold.
Rawya A. Hussein, Ali A. Ali
doaj +1 more source
Point-line geometries related to binary equidistant codes [PDF]
arXiv, 2023 We investigate point-line geometries whose singular subspaces correspond to binary equidistant codes. The main result is a description of automorphisms of these geometries. In some important cases, automorphisms induced by non-monomial linear automorphisms surprisingly arise.
arxiv
A geometric perspective on plus-one generated arrangements of lines [PDF]
arXiv, 2023 We give a geometric characterisation of plus-one generated projective line arrangements that are next-to-free. We present new succinct proofs, via associated line bundles, for some properties of plus-one generated projective line arrangements.
arxiv
ESTIMATING TORSION OF DIGITAL CURVES USING 3D IMAGE ANALYSIS
Image Analysis and Stereology, 2016 Curvature and torsion of three-dimensional curves are important quantities in fields like material science or biomedical engineering. Torsion has an exact definition in the continuous domain.
Christoph Blankenburg +2 more
doaj +1 more source
On the affine geometry of congruences of lines
, 2023 Congruences, or $2$-parameter families of lines in $3$-space are of interest in many situations, in particular in geometric optics. In this paper we consider elements of their geometry which are invariant under affine changes of co-ordinates, for example that associated with their focal sets, and less well studied focal planes.
Bruce, J. W., Tari, F.
openaire +2 more sources
Heat Kernels Estimates for Hermitian Line Bundles on Manifolds of Bounded Geometry
Mathematics, 2021 We consider a family of semiclassically scaled second-order elliptic differential operators on high tensor powers of a Hermitian line bundle (possibly, twisted by an auxiliary Hermitian vector bundle of arbitrary rank) on a Riemannian manifold of bounded
Yuri A. Kordyukov
doaj +1 more source