Results 11 to 20 of about 448,963 (253)
Generalized almost product structures and generalized CRF-structures [PDF]
Journal of Geometry and Physics, 2017 We give several equivalent characterizations of orthogonal subbundles of the generalized tangent bundle defined, up to B-field transform, by almost product and local product structures. We also introduce a pure spinor formalism for generalized CRF-structure and investigate the resulting decomposition of the de Rham operator.
Marco Aldi, Daniele Grandini
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Results of the Experimental Studies of Grain Cleaning with an Air-Spiral Separator [PDF]
E3S Web of Conferences, 2020 We have developed an air-spiral separator with a screw aspiration channel, which allows us to reduce the air consumption and specific quantity of metal per structure.
Shepelev Sergey +4 more
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Structures on the Product of Two Almost Hermitian Almost Contact Manifolds
International Electronic Journal of Geometry, 2016 The purpose of this paper is to define some classes of almost contact metric 3-structures manifoldsand almost quaternionic metric with an almost Hermitian almost contact metric structure. Next,we construct an almost quaternionic Hermitian structure on the product of two almost Hermitianalmost contact metric structures.
BELDJİLALİ, Gherici +1 more
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The homogeneous structure in a Cartan space
Lietuvos Matematikos Rinkinys, 2013 The homogeneus almost product structure on the Finsler space have Lieviu Popescu studied. In this paper we study the integrability conditions for the homogeneus product structure in Cartan space with Miron connection.
Edmundas Mazėtis
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Remarks on Almost Cosymplectic 3-Manifolds with RICCI Operators
Journal of Mathematics, 2020 Let M be an almost cosymplectic 3-h-a-manifold. In this paper, we prove that the Ricci operator of M is transversely Killing if and only if M is locally isometric to a product space of an open interval and a surface of constant Gauss curvature, or a ...
Quanxiang Pan, Yajie Wang
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Crystal structure of 5-[(benzoyloxy)methyl]-5,6-dihydroxy-4-oxocyclohex-2-en-1-yl benzoate
Acta Crystallographica Section E: Crystallographic Communications, 2020 The crystal structure of the natural product zeylenone, C21H18O7, was confirmed by single-crystal X-ray diffraction. The crystal structure has three chiral centers at positions C1, C5 and C6 of the cyclohexanone ring, but the absolute configuration could
Theerachart Leepasert +3 more
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Applied Sciences, 2022 Cobalt oxides, CoO and Co3O4, were obtained from Co (II) acetate tetrahydrate. The thermal decomposition pathway of the starting product was followed by combining thermogravimetric analysis and in situ X-ray thermodiffraction. Under a nitrogen atmosphere,
Daniel Gutiérrez-Martín +4 more
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[Se(CH2C(O)CH3)3][B12F11NH3]: The first selenium cation with three β-ketone substituents
Acta Crystallographica Section E: Crystallographic Communications, 2020 The reaction of [Se8][B12F11NH3]2 with acetone and subsequent crystallization from acetone/diethyl ether yielded the selenium cation [Se(CH2C(O)CH3)3]+ as a by-product, which is stabilized by the weakly coordinating undecafluorinated anion [B12F11NH3 ...
Carsten Jenne, Marc C. Nierstenhöfer
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International Journal of Mathematics and Mathematical Sciences, 2003 Special para-f-structures on Lie groups are studied. It is shown that every para-f-Lie group G is the quotient of the product of an almost product Lie group and a Lie group with trivial para-f-structure by a discrete subgroup.
Andrew Bucki
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Almost CR Structures, $f$-Structures, Almost Product Structures and Associated Connections
Rocky Mountain Journal of Mathematics, 1993 Let \(CTM\) be the complexification of the tangent bundle \(TM\) of the manifold \(M\). An almost CR-structure is a complex subbundle \(H \subset CTM\) such that \(H \cap \overline{H} = 0\). In [Geometry of CR-submanifolds. Dordrecht: D. Reidel (1986; Zbl 0605.53001)] \textit{A.
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