標(biāo)題: Titlebook: Basic Concepts of Algebraic Topology; Fred H. Croom Textbook 1978 Springer-Verlag New York 1978 Algebra.Basic.Derivation.Manifold.Morphism [打印本頁] 作者: VIRAL 時(shí)間: 2025-3-21 18:05
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作者: strain 時(shí)間: 2025-3-21 21:39 作者: 柔軟 時(shí)間: 2025-3-22 01:44 作者: hyperuricemia 時(shí)間: 2025-3-22 07:41 作者: 剝皮 時(shí)間: 2025-3-22 11:24 作者: Acquired 時(shí)間: 2025-3-22 16:28 作者: anchor 時(shí)間: 2025-3-22 21:08 作者: G-spot 時(shí)間: 2025-3-23 01:08
The Higher Homotopy Groups,tal group was recognized early in the development of algebraic topology. Definitions of these “higher homotopy groups” were given in the years 1932–1935 by Eduard Cech (1893–1960) and Witold Hurewicz (1904–1956). It was Hurewicz who gave the most satisfactory definition and proved the fundamental properties.作者: 難解 時(shí)間: 2025-3-23 02:04
The Fundamental Group, that two closed paths in a space are homotopic provided that each of them can be “continuously deformed into the other.” In Figure 4.1, for example, paths . and . are homotopic to each other and . is homotopic to a constant path. Path . is not homotopic to either . or . since neither . nor . can be pulled across the hole that they enclose.作者: 裁決 時(shí)間: 2025-3-23 06:59 作者: erythema 時(shí)間: 2025-3-23 11:05
Duplex Unwinding with DEAD-Box Proteins, that two closed paths in a space are homotopic provided that each of them can be “continuously deformed into the other.” In Figure 4.1, for example, paths . and . are homotopic to each other and . is homotopic to a constant path. Path . is not homotopic to either . or . since neither . nor . can be pulled across the hole that they enclose.作者: 飛鏢 時(shí)間: 2025-3-23 17:15 作者: 有雜色 時(shí)間: 2025-3-23 19:41
,Chain Statistics — Helical Wormlike Chains,Topology is an abstraction of geometry; it deals with sets having a structure which permits the definition of continuity for functions and a concept of “closeness” of points and sets. This structure, called the “topology” on the set, was originally determined from the properties of open sets in Euclidean spaces, particularly the Euclidean plane.作者: conquer 時(shí)間: 2025-3-24 01:40 作者: Relinquish 時(shí)間: 2025-3-24 04:37
Single-Molecule Studies of RecBCD,This chapter is designed to show the power of the fundamental group. We shall consider a class of mappings ., called “covering projections,” from a “covering space” . to a “base space” . to which we can extend the Covering Homotopy Property discussed in Chapter 4. Precise definitions are given in the next section.作者: CRUDE 時(shí)間: 2025-3-24 08:22
Geometric Complexes and Polyhedra,Topology is an abstraction of geometry; it deals with sets having a structure which permits the definition of continuity for functions and a concept of “closeness” of points and sets. This structure, called the “topology” on the set, was originally determined from the properties of open sets in Euclidean spaces, particularly the Euclidean plane.作者: fringe 時(shí)間: 2025-3-24 14:02
Simplicial Homology Groups,Having defined polyhedron, complex, and orientation for complexes in the preceding chapter, we are now ready for the precise definition of the homology groups. Intuitively speaking, the homology groups of a complex describe the arrangement of the simplexes in the complex thereby telling us about the “holes” in the associated polyhedron.作者: 出來 時(shí)間: 2025-3-24 18:08
Covering Spaces,This chapter is designed to show the power of the fundamental group. We shall consider a class of mappings ., called “covering projections,” from a “covering space” . to a “base space” . to which we can extend the Covering Homotopy Property discussed in Chapter 4. Precise definitions are given in the next section.作者: Oration 時(shí)間: 2025-3-24 19:11
https://doi.org/10.1007/978-1-4684-9475-4Algebra; Basic; Derivation; Manifold; Morphism; Topology; theorem作者: Grasping 時(shí)間: 2025-3-25 00:31
Springer-Verlag New York 1978作者: 定點(diǎn) 時(shí)間: 2025-3-25 07:00 作者: 釋放 時(shí)間: 2025-3-25 07:31
Duplex Unwinding with DEAD-Box Proteins, that two closed paths in a space are homotopic provided that each of them can be “continuously deformed into the other.” In Figure 4.1, for example, paths . and . are homotopic to each other and . is homotopic to a constant path. Path . is not homotopic to either . or . since neither . nor . can be作者: 冥界三河 時(shí)間: 2025-3-25 11:43
https://doi.org/10.1007/978-3-662-53168-6the first homology group is completely determined by the fundamental group. For this reason, the need for higher dimensional analogues of the fundamental group was recognized early in the development of algebraic topology. Definitions of these “higher homotopy groups” were given in the years 1932–19作者: 容易生皺紋 時(shí)間: 2025-3-25 17:23
Introduction to Helicene Chemistrynce they apply to more spaces. The process of extending homology to spaces more general than polyhedra began in the years 1921–1933 and has continued to the present day. The pioneers in this work were Oswald Veblen, Solomon Lefschetz, Leopold Vietoris, and Eduard ?ech. In this chapter we shall exami作者: 無政府主義者 時(shí)間: 2025-3-25 22:08
0172-6056 opology and some familiarity with vector spaces. Outlines of the prerequisite material can be found in the appendices at the end of the text. It is suggested th978-1-4684-9475-4Series ISSN 0172-6056 Series E-ISSN 2197-5604 作者: Physiatrist 時(shí)間: 2025-3-26 00:24 作者: 懸掛 時(shí)間: 2025-3-26 04:41 作者: 壁畫 時(shí)間: 2025-3-26 10:17 作者: 傻 時(shí)間: 2025-3-26 13:48 作者: 沐浴 時(shí)間: 2025-3-26 17:24 作者: Incorruptible 時(shí)間: 2025-3-26 22:46 作者: expound 時(shí)間: 2025-3-27 03:31 作者: ablate 時(shí)間: 2025-3-27 09:07
Eye-Tracking Metrics as an Indicator of Workload in Commercial Single-Pilot Operationserent areas of interest. These results suggest that particularly the temporal demand requires adequate support for a possible transition to SPO. The eye-tracking metrics support results obtained from subjective workload ratings.作者: 匍匐前進(jìn) 時(shí)間: 2025-3-27 10:55 作者: Ebct207 時(shí)間: 2025-3-27 15:34 作者: 是限制 時(shí)間: 2025-3-27 18:50
Koordinaten dialektischer KonstruktionGeschichte. Die Einheit der Welt ist nicht als Einheit von nur graduell verschiedenen Selbigen, sondern als Einheit von wesensm??ig Unterschiedenen zu begreifen; nur unter dieser Voraussetzung ist die ?Grundfrage der Philosophie?, die ja von der Gegebenheit zweier . Seinsweisen — Sein und Bewu?tsein作者: 懸崖 時(shí)間: 2025-3-27 22:08 作者: NAUT 時(shí)間: 2025-3-28 05:53 作者: 大約冬季 時(shí)間: 2025-3-28 10:15
Virtual Research Domains Management on L2 Optical Private Networkt network switching, and sophisticated access control and monitoring. In this paper, we introduce L2 OPN architecture and describe our experience in implementing L2 OPN. Lastly, we address the function and framework ofVirtual Research Domains Management over L2 OPN.
