Results 61 to 70 of about 520,948 (231)
Homotopy K3's with several symplectic structures
, 2001 In this note we prove that, for any integer n, there exist a smooth 4-manifold, homotopic to a K3 surface, defined by applying the link surgery method of Fintushel-Stern to a certain 2-component graph link, which admits n inequivalent symplectic ...
Eisenbud +5 more
core +3 more sources
The standard model in noncommutative geometry and fermion doubling [PDF]
, 1997 The link between chirality in the fermion sector and (anti-)self-duality in the boson sector is reexamined in the light of Connes' noncommutative geometry approach to the Standard Model.
Gracia-Bondia, J. M. +2 more
core +2 more sources
VRM: A Unified Framework for Closed-Form Solutions of a Special Class of Serial Manipulators
International Journal of Advanced Robotic Systems, 2015 This paper proposes the virtual reconfiguration method (VRM) to construct the unified framework for closed-form solutions of a special class of serial manipulators.
Xijian Huo +3 more
doaj +1 more source
Some aspects of topology and kinematics of a 3DOF translational parallel mechanism
International Journal of Applied Mechanics and Engineering, 2014 The paper presents elements of the topology, geometry and the kinematic analysis of a translational parallel mechanism with three degrees of freedom.
J. Bałchanowski
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Factorization in Phase-Space Finite Geometry and Weak Mutually Unbiased Bases
African Scientific Reports, 2023 A phase-space factorization of lines in finite geometry G(m) with variables in Zm and its correspondence in finite Hilbert space H(m) for m a non-prime was discussed. Using the method of Good [15], lines in G(m) were factorized as products of lines G(mi)
A. D. Adeshola +3 more
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Effect of Insert Angles on Cutting Tool Geometry [PDF]
Журнал інженерних наук, 2020 An analysis of publications has shown that mechanically clamped indexable inserts are predominantly used in modern tool manufacturing. Each insert has its shape and geometry in the tool coordinate system. The static system’s required geometry is achieved
Shvets S. V., Astakhov V. P.
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THE ROLE OF PROJECTIVE GEOMETRY IN TALIAN EDUCATION AND INSTITUTIONS AT THE END OF THE 19TH CENTURY
Revista de História da Educação Matemática, 2023 At the end of the 19th century, projective geometry was at the basis of most geometric research in Italy, and of much other research work in Europe. Furthermore, through its close connection with descriptive geometry, it seemed particularly responsive to
Marta Menghini
doaj
Bis(tribenzylammonium) tetrachloridoaurate(III) chloride
Acta Crystallographica Section E, 2010 In the title compound, (C21H22N)2[AuCl4]Cl, the AuIII atom adopts a square-planar coordination geometry defined by four chloride ions. In the crystal structure, intermolecular N—H...Cl hydrogen bonds link the organic cations and the ...
Yousef Fazaeli +3 more
doaj +1 more source
The size of triangulations supporting a given link [PDF]
, 2000 Let T be a triangulation of S^3 containing a link L in its 1-skeleton. We give an explicit lower bound for the number of tetrahedra of T in terms of the bridge number of L.
Armentrout +15 more
core +5 more sources
From Fractal Geometry to Statistical Fractal
Recoletos Multidisciplinary Research Journal, 2013 The development from fractal geometry to fractal statistics was established in this paper. Interesting features such as self similarity, scale invariance, and the spacefilling property of objects (fractal dimension) of fractal geometry provided an ...
Roberto N. Padua, Mark S. Borres
doaj +1 more source