994 resultados para Lie
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Two original poems
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Driven by the requirements of the bionic joint or tracking equipment for the spherical parallel manipulators (SPMs) with three rotational degrees-of-freedom (DoFs), this paper carries out the topology synthesis of a class of three-legged SPMs employing Lie group theory. In order to achieve the intersection of the displacement subgroups, the subgroup characteristics and operation principles are defined in this paper. Mainly drawing on the Lie group theory, the topology synthesis procedure of three-legged SPMs including four stages and two functional blocks is proposed, in which the assembly principles of three legs are defined. By introducing the circular track, a novel class of three-legged SPMs is synthesized, which is the important complement to the existing SPMs. Finally, four typical examples are given to demonstrate the finite displacements of the synthesized three-legged SPMs.
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Motivated by the description of the C*-algebra of the affine automorphism group N6,28 of the Siegel upper half-plane of degree 2 as an algebra of operator fields defined over the unitary dual View the MathML source of the group, we introduce a family of C*-algebras, which we call almost C0(K), and we show that the C*-algebra of the group N6,28 belongs to this class.
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Collection : Théâtre contemporain illustré ; 121e et 122e livraisons
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Collection : Théâtre contemporain illustré ; 121e et 122e livraisons
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Par Liu Xiang (Ier siècle avant notre ère), avec diverses préfaces ; belle édition illustrée de 1606.8 livres. — Cat. imp., liv. 57, f. 21.
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Par You long zi, de Dong hai ; préface non datée, par l'auteur. Édition du pavillon Chang chun, gravée à Wu, au pavillon San duo.6 livres.
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Par Kong gu lao ren. Préface sans date. Édition de la salle Lu yi (1825).5 livres (34 hui).
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Contient : I Lettres originales ; II