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Joint Center Estimation Using Single-Frame Optimization: Part 2: Experimentation. [PDF]
Frick E, Rahmatalla S.
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Comparison of the Capacity of Several Machine Learning Tools to Assist Immunofluorescence-Based Detection of Anti-Neutrophil Cytoplasmic Antibodies. [PDF]
Bertin D, Bongrand P, Bardin N.
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Characterisation of Large-Sized REBaCuO Bulks for Application in Flux Modulation Machines. [PDF]
Nouailhetas Q +9 more
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Techno-structural and 3-D geometric morphometric analysis applied for investigating the variability of Holocene unifacial tools in tropical Central Brazil. [PDF]
González-Varas M +9 more
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On the constant of homothety for covering a convex set with its smaller copies
Márton Naszódi
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Homothety groups in space-time
General Relativity and Gravitation, 1990The authors investigate Lorentzian space-times which admit an r- dimensional Lie algebra of homothetic vector fields at least one of which is proper homothetic (i.e., it is not a Killing vector field). A complete description of the situation is obtained if \(r\geq 6\) and some results are given for \(r\leq 5\).
Hall, G. S., Steele, J. D.
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On minkowski planes with transitive groups of homotheties
Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg, 1994In analogy with the well-known Lenz-Barlotti classification of projective planes, there are the Hering classification of Möbius planes [\textit{C. Hering}, Math. Z. 87, 252-262 (1965; Zbl 0126.166)], the Kleinewillinghofer classification of Laguerre planes [\textit{R. Kleinewillinghofer}, Arch. Math.
Klein, M., Kroll, H.-J.
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Simply-transitive homothety groups
General Relativity and Gravitation, 1991The author uses the spin-coefficient formalism of Penrose and Rindler to obtain spacetimes admitting a simply-transitive group of homotheties. Vacuum metrics with a five-dimensional homothety group are also considered.
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