Results 81 to 90 of about 130,788 (348)

Geophysical Investigations at the Artemision at Amarynthos of Euboea (Greece)

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT A combination of resistivity mapping and three‐dimensional electrical resistivity tomography (ERT) was used to investigate the subsurface of the sanctuary of Artemis Amarysia in Amarynthos, Euboea (Greece), an area where archaeological remains from the Bronze Age to the post‐Byzantine period are preserved.
G. N. Tsokas   +5 more
wiley   +1 more source

Sub-semi-Riemannian geometry on $H$-type groups [PDF]

open access: yes, 2010
We consider $H$(eisenberg)-type groups whose law of left translation gives rise to a bracket generating distribution of step 2. In the contrast with sub-Riemannian studies we furnish the horizontal distribution with a nondegenerate indefinite metric of ...
Korolko, Anna
core  

Parallel-propagated frame along null geodesics in higher-dimensional black hole spacetimes

open access: yes, 2008
In [arXiv:0803.3259] the equations describing the parallel transport of orthonormal frames along timelike (spacelike) geodesics in a spacetime admitting a non-degenerate principal conformal Killing-Yano 2-form h were solved.
B. Carter   +8 more
core   +1 more source

Null Geodesics and Gravitational Lensing in a Nonsingular Spacetime [PDF]

open access: yes, 2015
The null geodesics and gravitational lensing in a nonsingular spacetime are investigated. According to the nature of the null geodesics, the spacetime is divided into several cases.
Shao-Wen Wei, Yu-Xiao Liu, Chun-E Fu
semanticscholar   +1 more source

Algorithms for geodesics [PDF]

open access: yesJournal of Geodesy, 2011
Algorithms for the computation of geodesics on an ellipsoid of revolution are given. These provide accurate, robust, and fast solutions to the direct and inverse geodesic problems and they allow differential and integral properties of geodesics to be ...
Charles F. F. Karney
semanticscholar   +1 more source

Advancing Cave Survey Methods: High‐Precision Mapping in Drakotrypa Cave, Greece

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Cave floor mapping plays a vital role across various scientific disciplines by enabling the identification and interpretation of features shaped by both natural processes and human activity. In cave archaeology, floor mapping is crucial to decode and reconstruct human‐induced morphological features.
Christos Pennos   +5 more
wiley   +1 more source

On the scarring of eigenstates in some arithmetic hyperbolic manifolds [PDF]

open access: yes, 2005
In this paper, we deal with the conjecture of 'Quantum Unique Ergodicity'. Z. Rudnick and P. Sarnak showed that there is no 'strong scarring' on closed geodesics for arithmetic congruence surfaces derived from a quaternion division algebra.
Poullaouec, Tristan
core   +2 more sources

Guidelines for Scale Development and Validation

open access: yesJournal of Consumer Behaviour, EarlyView.
ABSTRACT Scales, serving as measurement instruments composed of carefully designed items intended to capture latent constructs, play a critical role in advancing consumer theory and marketing practice. Yet, developing and validating scales poses a formidable challenge due to the diverse methods required to ensure rigor and robustness.
Weng Marc Lim   +3 more
wiley   +1 more source

Homogeneous geodesics in homogeneous Finsler spaces

open access: yes, 2007
In this paper, we study homogeneous geodesics in homogeneous Finsler spaces. We first give a simple criterion that characterizes geodesic vectors. We show that the geodesics on a Lie group, relative to a bi-invariant Finsler metric, are the cosets of the
Arnold   +14 more
core   +2 more sources

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