unreduced suspension

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• Suspension (topology) — In topology, the suspension SX of a topological space X is the quotient space::SX = (X imes I)/{(x 1,0)sim(x 2,0)mbox{ and }(x 1,1)sim(x 2,1) mbox{ for all } x 1,x 2 in X}of the product of X with the unit interval I = [0, 1] . Intuitively, we… …   Wikipedia

• Mayer–Vietoris sequence — In mathematics, particularly algebraic topology and homology theory, the Mayer–Vietoris sequence is an algebraic tool to help compute algebraic invariants of topological spaces, known as their homology and cohomology groups. The result is due to… …   Wikipedia

• Puppe sequence — In mathematics, the Puppe sequence is a construction of homotopy theory.Let f : A → B be a continuous map between CW complexes and let C(f) denote a cone of f, so that we have a sequence:: A → B → C(f) Now we can form Σ A and Σ B , suspensions of …   Wikipedia

• pottery — /pot euh ree/, n., pl. potteries. 1. ceramic ware, esp. earthenware and stoneware. 2. the art or business of a potter; ceramics. 3. a place where earthen pots or vessels are made. [1475 85; POTTER1 + Y3] * * * I One of the oldest and most… …   Universalium

• steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying …   Universalium

• vat dye — noun a water insoluble dye that is applied by reducing the dye to an alkaline form, applying the dye, then regenerating the insoluble dye by oxidation in the material; used for dyeing cotton • Syn: ↑vat color • Hypernyms: ↑dye, ↑dyestuff * * *… …   Useful english dictionary