Results 61 to 70 of about 410,519 (339)
Generalized Poincaré Half-Planes [PDF]
arXiv, 2019 In this note, we give some generalisations of the classical Poincar\'{e} upper half-plane, which is the most popular model of hyperbolic plane geometry. For this, we replace the circular arcs by elliptical arcs with center on the $x-$axis, and foci on the $x-$axis or on the lines perpendicular to the $x-$axis at the center, in the upper half-plane ...
arxiv
A Novel Geometry for Shear Test Using Axial Tensile Setup
Proceedings, 2018 This paper studies a novel geometry for the in-plane shear test performed with an axial electromechanical testing machine. In order to investigate the influence of the triaxiality rate on the mechanical behavior, different tests will be performed on the ...
Sibo Yuan +5 more
doaj +1 more source
A Note On Elliptic Plane Curves With Fixed j-Invariant [PDF]
arXiv, 1995 Let N_d be the number of degree d, nodal, rational plane curves through 3d-1 points in the complex projective plane. The number of degree d>=3, nodal, elliptic plane curves with a fixed (general) j-invariant through 3d-1 points is found to be {d-1 \choose 2}*N_d.
arxiv
International Journal of Adaptive Control and Signal Processing, EarlyView., 2023 Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley +1 more source
Noncommutative Geometry: Fuzzy Spaces, the Groenewold-Moyal Plane
Symmetry, Integrability and Geometry: Methods and Applications, 2006 In this talk, we review the basics concepts of fuzzy physics and quantum field theory on the Groenewold-Moyal Plane as examples of noncommutative spaces in physics. We introduce the basic ideas, and discuss some important results in these fields.
Aiyalam P. Balachandran +1 more
doaj
(Semi-)Riemannian geometry of (para-)octonionic projective planes [PDF]
arXiv, 2007 We use reduced homogeneous coordinates to study Riemannian geometry of the octonionic (or Cayley) projective plane. Our method extends to the para-octonionic (or split octonionic) projective plane, the octonionic projective plane of indefinite signature, and the hyperbolic dual of the octonionic projective plane; we discuss these manifolds in the later
arxiv
The American Mathematical Monthly, 1917 Includes index. ; Mode of access: Internet.
Wells, Webster, 1851-1916. +2 more
openaire +1 more source
Journal of Applied Clinical Medical Physics, EarlyView.ABSTRACT Background In radiotherapy for early‐stage glottic cancer, evaluating the target surface dose at the glottic air–tissue boundary is crucial, as buildup effect can cause underdosing. The accuracy of dose evaluation in the surrounding tissues is affected by both the dose calculation algorithms and the accuracy of the Hounsfield unit values in ...
Yuki Saito +3 more
wiley +1 more source
Advanced Engineering Materials, EarlyView., 2023 The study presents the mechanical and in situ sensing performance of digital light processing‐enabled 2D lattice nanocomposites under monotonic tensile and repeated cyclic loading, and provides guidelines for the design of architectures suitable for strain sensors and smart lightweight structures.
Omar Waqas Saadi +3 more
wiley +1 more source
Does another Euclidean plane exist other than the parasphere?
Acta Universitatis Sapientiae: Mathematica, 2017 It is shown that for the question of the title the answer is yes. We construct a plane in the hyperbolic space which is Euclidean.
Székely Endre
doaj +1 more source