ANTI-HOLOMORPHIC INVOLUTIONS AND SPHERICAL SUBGROUPS OF REDUCTIVE GROUPS [PDF]
Transformation Groups, 2015 v1:17 pages; v2: 14 pages, minor changes, final ...
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Spherical Stein manifolds and the Weyl involution [PDF]
Annales de l'Institut Fourier, 2009 We consider an action of a connected compact Lie group on a Stein manifold by holomorphic transformations. We prove that the manifold is spherical if and only if there exists an antiholomorphic involution preserving each orbit. Moreover, for a spherical Stein manifold, we construct an antiholomorphic involution, which is equivariant with respect to the
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Valanginian to Barremian Benthic Foraminifera from ODP Site 766 (Leg 123, Indian Ocean) [PDF]
, 1995 A Valanginian to Barremian bathyal foraminiferal assemblage (118 taxa belonging to 51 genera) is documented from ODP Site 766, drilled near the foot of the Exmouth Plateau off northwest Australia.
Holbourn, A.E.L., Kaminski, M.A.
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Spherical conjugacy classes and involutions in the Weyl group [PDF]
Mathematische Zeitschrift, 2007 Let G be a simple algebraic group over an algebraically closed field of characteristic zero or positive odd, good characteristic. Let B be a Borel subgroup of G. We show that the spherical conjugacy classes of G intersect only the double cosets of B in G corresponding to involutions in the Weyl group of G.
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Wavelet application research on tooth surface of spherical involute spiral bevel gear [PDF]
Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2018 In order to improve the machining accuracy of spiral bevel gears, a scheme based on the cubic B-spline wavelet was proposed. Based on the principle of spherical involute formation, a program was made in MATLAB to obtain the coordinate data of discrete points of the tooth surface.
Zhuo Zeng, Xieeryazidan Aday
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Parametric surface and properties defined on parallelogrammic domain [PDF]
, 2014 Similar to the essential components of many mechanical systems, the geometrical properties of the teeth of spiral bevel gears greatly influence the kinematic and dynamic behaviors of mechanical systems.
Fan, Shuqian +2 more
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Smarandache Curves of the Evolute Curve According to Sabban Frame
Communications in Advanced Mathematical Sciences, 2020 The aim of this paper is to define Smarandache curves according to the Sabban frame belonging to the unit Darboux vector of spherical indicatrix curve of the evolute curve. Also, we calculate the geodesic curvatures of these curves.
Süleyman Şenyurt, Yasin Altun
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Modeling and Meshing Analysis of 3-DOF Spherical Gear
Jixie chuandong, 2021 The 3-DOF spherical gear is proposed and its tooth surface is composed of involute ring tooth surface and semi-spherical bevel tooth surface， the error-free transmission can be realized.
Litong Zhang +4 more
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Spherical Indicatrices of Involute of a Space Curve in Euclidean 3-Space
Tamkang Journal of Mathematics, 2020 In this work, we studied the properties of the spherical indicatrices of involute curve of a space curve and presented some characteristic properties in the cases that involute curve and evolute curve are slant helices and helices, spherical indicatrices are slant helices and helices and we introduced new representations of spherical indicatrices.
Tunçer, Yılmaz +2 more
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Investigation on the sampling size optimisation in gear tooth surface measurement using a Co-ordinate Measuring Machine [PDF]
, 2004 Co-ordinate Measuring Machines (CMMs) are widely used in gear manufacturing industry. One of the main issues for contact inspection using a CMM is the sampling technique.
C.H. Gao +8 more
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