Global Information Lookup Global Information

Approximate fibration information


In algebraic topology, a branch of mathematics, an approximate fibration is a sort of fibration such that the homotopy lifting property holds only approximately. The notion was introduced by Coram and Duvall in 1977.[1]

A manifold approximate fibration is a proper approximate fibration between manifolds.[2] Some authors believe that manifold approximate fibrations are the "correct bundle theory for topological manifolds and singular spaces".[3]

  1. ^ Coram, D.; Duvall, P. (1977). "Approximate fibrations". Rocky Mountain Journal of Mathematics. 7 (2): 275–288. doi:10.1216/RMJ-1977-7-2-275.
  2. ^ Hughes, Taylor & Williams 1995, § 1.
  3. ^ Hughes, Taylor & Williams 1995, Introduction

and 25 Related for: Approximate fibration information

Request time (Page generated in 0.8068 seconds.)

Approximate fibration

Last Update:

of mathematics, an approximate fibration is a sort of fibration such that the homotopy lifting property holds only approximately. The notion was introduced...

Word Count : 134

Fibration

Last Update:

following commutative diagram shows the situation: : 66  A fibration (also called Hurewicz fibration) is a mapping p : E → B {\displaystyle p\colon E\to B}...

Word Count : 3429

Glossary of algebraic topology

Last Update:

homotopy inverse. Analysis Situs approximate fibration 1.  An approximate fibration, a generalization of a fibration and a projection in a locally trivial...

Word Count : 7563

Spider silk

Last Update:

conditions are loosely approximated. Fibres created using this method may need encouragement to solidify by removing water from the fibre with chemicals such...

Word Count : 7655

Carbon fibers

Last Update:

Carbon fibers or carbon fibres (alternatively CF, graphite fiber or graphite fibre) are fibers about 5 to 10 micrometers (0.00020–0.00039 in) in diameter...

Word Count : 2891

Synthetic fiber

Last Update:

Synthetic fibers or synthetic fibres (in British English; see spelling differences) are fibers made by humans through chemical synthesis, as opposed to...

Word Count : 1065

Optical fiber

Last Update:

An optical fiber, or optical fibre, is a flexible glass or plastic fiber that can transmit light from one end to the other. Such fibers find wide usage...

Word Count : 11951

Jute

Last Update:

Jute is a long, rough, shiny bast fibre that can be spun into coarse, strong threads. It is produced from flowering plants in the genus Corchorus, of...

Word Count : 2918

Fibre saturation point

Last Update:

Fibre saturation point is a term used in wood mechanics and especially wood drying, to denote the point in the drying process at which only water bound...

Word Count : 156

List of terrestrial fibre optic cable projects in Africa

Last Update:

This is a list of terrestrial fibre optic cable projects in Africa. While submarine communications cables are used to connect countries and continents...

Word Count : 1668

Rope

Last Update:

stones required to build their monuments. Starting from approximately 2800 BC, rope made of hemp fibres was in use in China. Rope and the craft of rope making...

Word Count : 4618

Fiber to the x

Last Update:

Fiber to the x (FTTX; also spelled "fibre") or fiber in the loop is a generic term for any broadband network architecture using optical fiber to provide...

Word Count : 4916

FICON

Last Update:

FICON (Fibre Connection) is the IBM proprietary name for the ANSI FC-SB-3 Single-Byte Command Code Sets-3 Mapping Protocol for Fibre Channel (FC) protocol...

Word Count : 1331

Proctoscopy

Last Update:

light bulb mounted at the end. It is approximately 5 inches or 15 cm long, while a rectoscope is approximately 10 inches or 25 cm long. During proctoscopy...

Word Count : 406

Rayon

Last Update:

(typically 16–19% by mass) to form "alkali cellulose", which has the approximate formula [C6H9O4−ONa]n. This material is allowed to depolymerize to an...

Word Count : 5285

Host adapter

Last Update:

32 Gbit/s. The major Fibre Channel HBA manufacturers are QLogic and Broadcom. As of mid-2009, these vendors shared approximately 90% of the market. Other...

Word Count : 918

Natural fiber

Last Update:

Natural fibers or natural fibres (see spelling differences) are fibers that are produced by geological processes, or from the bodies of plants or animals...

Word Count : 2575

Commissural fiber

Last Update:

all mammals. Using diffusion tensor imaging, researchers were able to approximate the location of the anterior commissure where it crosses the midline...

Word Count : 1256

Chorus Limited

Last Update:

equipment in New Zealand; and was responsible for building approximately 70% of the country's fibre-optic UFB network, receiving a government subsidy of $929...

Word Count : 754

Textile manufacturing

Last Update:

processing of textile (70 per cent). Approximately 25 per cent of energy in the total textile production like fibre production, spinning, twisting, weaving...

Word Count : 5796

Camel hair

Last Update:

generally refers to the fibre (and cloth) that may be made from either pure camel hair or a blend of camel hair and another fibre. Camel hair has two components:...

Word Count : 522

Cotton bale

Last Update:

and then blending fibres from various bales [which also includes the bales received from other stations] according to their fibre properties in order...

Word Count : 960

Micrometre

Last Update:

and for grading wool by the diameter of the fibres. The width of a single human hair ranges from approximately 20 to 200 μm. Between 1 μm and 10 μm: 1–10 μm...

Word Count : 912

Asbestos

Last Update:

types, all of which are composed of long and thin fibrous crystals, each fibre (particulate with length substantially greater than width) being composed...

Word Count : 11617

Cement board

Last Update:

boards and Fibre cement. Cement bonded particle boards have treated wood flakes as reinforcement, whereas cement fibre boards have cellulose fibre, which...

Word Count : 926

PDF Search Engine © AllGlobal.net