Results 21 to 30 of about 739,586 (175)
POINTLESS SPACES IN GENERAL RELATIVITY [PDF]
The new approach to quantize the gravity based on the notion of differential algebra is suggested. It is shown that the differential geometry of this object can not be described in terms of points.
C. J. Isham +10 more
core +3 more sources
AV-differential geometry and Newtonian mechanics [PDF]
A frame independent formulation of analytical mechanics in the Newtonian space-time is presented The differential geometry of affine values i.e., the differential geometry in which affine bundles replace vector bundles and sections of one dimensional ...
Grabowska, Katarzyna, Urbanski, Pawel
core +1 more source
Differential Geometry of Ice Flow
Flowlines on ice sheets and glaciers form complex patterns. To explore their role in ice routing and extend the language for studying such patterns, we develop a theory of flow convergence and curvature in plan view.
Felix S. L. Ng +2 more
doaj +1 more source
Functional Segmentation for Preoperative Liver Resection Based on Hepatic Vascular Networks
Successful liver resection relies on accurate estimation of future liver remnant volume (FLRV). According to Couinaud's scheme, a liver is composed of eight functionally independent segments, each of which has its own vascular in- and out-flow tracks ...
Doan Cong Le +3 more
doaj +1 more source
Differential Geometry of Hydrodynamic Vlasov Equations [PDF]
We consider hydrodynamic chains in $(1+1)$ dimensions which are Hamiltonian with respect to the Kupershmidt-Manin Poisson bracket. These systems can be derived from single $(2+1)$ equations, here called hydrodynamic Vlasov equations, under the map $A^n =\
Andrea Raimondo +17 more
core +1 more source
Using Differential Geometry to Revisit the Paradoxes of the Instantaneous Frequency
This paper proposes a general framework to interpret the concept of Instantaneous Frequency (IF) in three-phase systems. The paper first recalls the conventional frequency-domain analysis based on the Fourier transform as well as the definition of IF ...
Federico Milano +4 more
doaj +1 more source
Differential geometry, Palatini gravity and reduction [PDF]
The present article deals with a formulation of the so called (vacuum) Palatini gravity as a general variational principle. In order to accomplish this goal, some geometrical tools related to the geometry of the bundle of connections of the frame bundle $
Baez J. +17 more
core +2 more sources
Nucleon spin decomposition and differential geometry [PDF]
In the last few years, the so-called Chen et al. approach of the nucleon spin decomposition has been widely discussed and elaborated on. In this letter we propose a genuine differential geometric understanding of this approach.
François, Jordan +2 more
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Geometrical modeling and numerical analysis of edge dislocation
In this study, we conduct modeling and numerical analysis of a straight edge dislocation in a three-dimensional geometrically nonlinear elastic medium.
Shunsuke KOBAYASHI, Ryuichi TARUMI
doaj +1 more source
Multiview Differential Geometry of Curves
The field of multiple view geometry has seen tremendous progress in reconstruction and calibration due to methods for extracting reliable point features and key developments in projective geometry.
Fabbri, Ricardo, Kimia, Benjamin
core +1 more source

