Results 101 to 110 of about 12,200 (306)
, 2017 The geodesics on the (1 + 3)-dimensional de Sitter (dS) spacetime are considered studying how their parameters are determined by the conserved quantities in the conformal Euclidean, Friedmann–Lemaître–Robertson–Walker, de Sitter–Painlevé and static ...
Ion I. Cotăescu
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Selecciones MatemáticasCalculus of variations is a fundamental mathematical discipline focused on optimizing functionals, which map sets of functions to real numbers. This field is essential for numerous applications, including the formulation and solution of partial ...
Delphin Mwinken
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GEOMETRIC ANALYSIS OF PLANAR SHAPES WITH APPLICATIONS TO CELL DEFORMATIONS
Image Analysis and Stereology, 2015 Shape analysis is of great importance in many fields such as computer vision, medical imaging, and computational biology. In this paper we focus on a shape space in which shapes are represented by means of planar closed curves.
Ximo Gual-Arnau +2 more
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Physica A: Statistical Mechanics and its Applications25 pages, 2 figures.
Barua, Arnab +2 more
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International Journal of Cancer, EarlyView.Although chronic air pollution exposure is linked to lung cancer mortality, the short‐term effects of fluctuating air quality on overall cancer mortality remain uncertain. Here, the authors applied geomatics and machine‐learning models to retrospectively examine possible associations between 31‐day pollution exposure and mortality in a French cancer ...
Loice Pokam +12 more
wiley +1 more source
Geodesics as limits of geodesics on PL-surfaces [PDF]
, 2007 In this paper, we study the problem of convergence of geodesics on PL-surfaces and in particular on subdivision surfaces. More precisely, if a sequence (T_n) of PL-surfaces converges in distance and in normals to a smooth surface S and if C_n is a ...
Lieutier, André, Thibert, Boris
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Physics Letters A, 1997 We present the geodesics on homogeneous and isotropic negatively curved spaces in a simple form suitable for application to cosmological problems. We discuss how the patterns in the microwave sky of anisotropic homogeneous universes can be predicted qualitatively by looking at the invariances that generate their three-geometries.
Barrow, John D., Levin, Janna
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Geodesic Information Flows [PDF]
, 2012 Homogenising the availability of manually generated information in large databases has been a key challenge of medical imaging for many years. Due to the time consuming nature of manually segmenting, parcellating and localising landmarks in medical images, these sources of information tend to be scarce and limited to small, and sometimes ...
Manuel Jorge Cardoso +5 more
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Warm‐wet transition restructures arid lake microbiomes and functional potential
iMetaOmics, EarlyView.This study summarizes how a long‐term warm‐dry to warm‐wet transition restructures microbiomes and functional potential in Lake Bosten, an arid lake in northwestern China. Warm‐wet hydroclimatic change increased water level and hydrological connectivity, while decreasing salinity and total nitrogen.
Zhen Shen +8 more
wiley +1 more source
A remarkable identity for lengths of curves [PDF]
In this thesis we will prove the following new identity Σγ 1/(1 + exp |γ|) = 1/2, where the sum is over all closed simple geodesics γ on a punctured torus with a complete hyperbolic structure, and |γ| is the length of γ. Although it is well known
McShane, Greg
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