呼吸 发表于 2025-3-23 10:34:38
http://reply.papertrans.cn/51/5012/501137/501137_11.pngEvacuate 发表于 2025-3-23 14:51:51
Extremal Structure of Convex Sets: Components and Faces,f vertices, edges and faces of a polyhedron. Properties of extremeness are studied, and two types of extreme subset of a convex set, called components and faces, are singled out for special attention. The components and faces of a convex set . are intimately related, since the interior operation conImpugn 发表于 2025-3-23 19:30:13
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Cones and Hypercones,y of their generalization, hypercones. A cone is defined to be a union of a family of rays that have a common endpoint. Cones which are convex, and of these, especially those which are “pointed”, are of most importance. The problem of how convex cones are generated by their rays receives a major shabromide 发表于 2025-3-24 04:50:09
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,Exchange Join Geometries—The Theory of Incidence and Dimension,operty of Euclidean geometry: two points determine a line. Join geometries that satisfy the new postulate are called exchange join geometries or exchange geometries. It is in an exchange join geometry, rather than an arbitrary join geometry, that incidence relations among linear spaces can be satisf卷发 发表于 2025-3-24 11:06:20
Ordered Join Geometries,: If three distinct points are collinear, then one of the three is between the other two. Join geometries which satisfy the new postulate are called ordered join geometries or ordered geometries. Ordered geometries are exchange geometries studied in the last chapter, but the results there will not b拒绝 发表于 2025-3-24 16:11:36
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simple construction, low cost of materials, constant speed at variable load) and induction motors (IM) (mainly the ability to start if supplied directly from the mains)..Scientific literature (Gamba et al., International Electric Machines & Drives Conference, Chicago, 648–655, 2013) has widely affi头脑冷静 发表于 2025-3-25 00:54:47
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