Results 21 to 30 of about 118,109 (263)

Ricci Curvature on Birth-Death Processes

open access: yesAxioms, 2023
In this paper, we study curvature dimension conditions on birth-death processes which correspond to linear graphs, i.e., weighted graphs supported on the infinite line or the half line. We give a combinatorial characterization of Bakry and Émery’s CD(K,n)
Bobo Hua, Florentin Münch
doaj   +1 more source

Uniform Convergence of Discrete Curvatures from Nets of Curvature Lines [PDF]

open access: yesDiscrete & Computational Geometry, 2010
We study discrete curvatures computed from nets of curvature lines on a given smooth surface, and prove their uniform convergence to smooth principal curvatures. We provide explicit error bounds, with constants depending only on properties of the smooth limit surface and the shape regularity of the discrete net.
Ulrich Bauer   +2 more
openaire   +4 more sources

Interpolation of Surfaces with Line of Curvature

open access: yesInternational Electronic Journal of Geometry, 2021
We introduce a method to construct parametric surfaces interpolating given finite points and a curve as a line of curvature in 3-dimensional Euclidean space. We present an existence theorem of a $C^{0}$-Hermite interpolation of surfaces possessing the given data.
openaire   +4 more sources

Spacelike developable surfaces through a common line of curvature in Minkowski 3-space

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2015
This paper studies the problem to construct a spacelike developable surface possessing a given non-null parametric curve as the line of curvature in Minkowski 3-space.
Cai-Yun LI, Chun-Gang ZHU, Ren-Hong WANG
doaj   +1 more source

Effect of Plate Curvature on Heat Source Distribution in Induction Line Heating for Plate Forming

open access: yesApplied Sciences, 2020
Line heating is an essential process in the formation of ship hull plates with a complex curvature. Electromagnetic induction heating is widely used in the line heating process.
Lichun Chang   +5 more
doaj   +1 more source

Continuous-Curvature Path Generation Using Fermat's Spiral [PDF]

open access: yesModeling, Identification and Control, 2013
This paper proposes a novel methodology, based on Fermat's spiral (FS), for constructing curvature-continuous parametric paths in a plane. FS has a zero curvature at its origin, a property that allows it to be connected with a straight line smoothly ...
Anastasios M. Lekkas   +3 more
doaj   +1 more source

Bisector Surfaces Through A Common Line of Curvatures and Its Classifications

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018
In this paper, we study the Bisector surface, which definesthe line of curvature on a surface play an importance role. Firstly, theBisector surface constructed by a point and a space curve given in Euclidean3-space.
Muhammed Talat Sarıaydın
doaj   +1 more source

The curvature of the QCD phase transition line [PDF]

open access: yesProceedings of The XXVI International Symposium on Lattice Field Theory — PoS(LATTICE 2008), 2009
We determine the curvature of the phase transition line in the mu-T plane through an analysis of various observables, including the Polyakov loop, the quark number susceptibilities and the susceptibility of the chiral condensate. The second derivative of these quantities with respect to mu was calculated.
Endrödi, Gergely   +3 more
openaire   +4 more sources

Effect of the Double-Line Spiral Tunnel Curvature on the Tunnel Construction Stability

open access: yesAdvances in Civil Engineering, 2020
In the construction of mountain highway, in order to avoid complicated geology and adapt to the requirements of the terrain of the large height difference and the large slope, the double-line spiral tunnels are gradually applied.
Chao Zhang   +4 more
doaj   +1 more source

Curvature of the Field Lines of Magnetic Braids

open access: yesWasit Journal for Pure Sciences, 2022
In this paper, we calculate the curvature numerically as a geometrical feature of the field lines of the magnetic braid that introduced by Antonia Wilmot-Smith and other new braid introduced in this work similar to that given by Wilmot-Smith but with ...
Murtadha Ali Rasheed, faik Mayah
doaj   +1 more source

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