characteristic class

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• Characteristic class — In mathematics, a characteristic class is a way of associating to each principal bundle on a topological space X a cohomology class of X. The cohomology class measures the extent to which the bundle is twisted particularly, whether it possesses… …   Wikipedia

• characteristic — adj Characteristic, individual, peculiar, distinctive are comparable when they mean indicating or revealing the special quality or qualities of a particular person or thing or of a particular group of persons or things. Characteristic stresses… …   New Dictionary of Synonyms

• class — n Class, category, genus, species, denomination, genre are compared here only in their general, nonspecial ized use, and the following comments may be inapplicable to such technical fields as philosophy and the sciences. Class is a very general… …   New Dictionary of Synonyms

• Class stratification — is a form of social stratification in which a society tends to divide into separate classes whose members have differential access to resources and power. An economic and cultural rift usually exists between different classes. People are usually… …   Wikipedia

• class — n: a group of persons or things having characteristics in common: as a: a group of persons who have some common relationship to a person making a will and are designated to receive a gift under the will but whose identities will not be determined …   Law dictionary

• characteristic — [kar΄ək tər is′tik, kar΄iktər is′tik] adj. [Gr charaktēristikos: see CHARACTER] of or constituting the special character; typical; distinctive [the characteristic odor of cabbage] n. 1. a distinguishing trait, feature, or quality; peculiarity 2.… …   English World dictionary

• class — ► NOUN 1) a set or category of things having a common characteristic and differentiated from others by kind or quality. 2) a system that divides members of a society into sets based on social or economic status. 3) a set in a society ordered by… …   English terms dictionary

• Class formation — In mathematics, a class formation is a structure used to organize the various Galois groups and modules that appear in class field theory. They were invented by Emil Artin and John Tate. Contents 1 Definitions 2 Examples of class formations 3 The …   Wikipedia

• characteristic — I. noun Date: 1664 1. a distinguishing trait, quality, or property 2. the integral part of a common logarithm 3. the smallest positive integer n which for an operation in a ring or field yields 0 when any element is used n times with the… …   New Collegiate Dictionary

• Characteristic set — The mathematical concept of a characteristic set was discovered in the late forties by J.F. Ritt. Besides Gröbner basis method, it provides an alternative algorithmic way for solving multivariate polynomial equations or differential equations.In… …   Wikipedia

• Characteristic based product configurator — A characteristic based product configurator is a product configurator extension which uses a set of discrete variables, called characteristics (or features), to define all the possible product variations. The characteristics There are two… …   Wikipedia