# regularity

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**Varieties of Chinese**— Chinese Geographic distribution: mainland China, Hong Kong, Macau, Taiwan, Singapore and other areas with historic immigration from China. Linguistic classification: Sino Tibetan Sinitic …52

**Obstacle problem**— The obstacle problem is a classic motivating example in the mathematical study of variational inequalities and free boundary problems. The problem is to find the equilibrium position of an elastic membrane whose boundary is held fixed, and which… …53

**prosody**— prosodic /preuh sod ik/, prosodical, adj. /pros euh dee/, n. 1. the science or study of poetic meters and versification. 2. a particular or distinctive system of metrics and versification: Milton s prosody. 3. Ling. the stress and intonation… …54

**MASORAH**— This article is arranged according to the following outline: 1. THE TRANSMISSION OF THE BIBLE 1.1. THE SOFERIM 1.2. WRITTEN TRANSMISSION 1.2.1. Methods of Writing 1.2.1.1. THE ORDER OF THE BOOKS 1.2.1.2. SEDARIM AND PARASHIYYOT …55

**Hausdorff space**— In topology and related branches of mathematics, a Hausdorff space, separated space or T2 space is a topological space in which distinct points have disjoint neighbourhoods. Of the many separation axioms that can be imposed on a topological space …56

**X-ray crystallography**— can locate every atom in a zeolite, an aluminosilicate with many important applications, such as water purification. X ray crystallography is a method of determining the arrangement of atoms within a crystal, in which a beam of X rays strikes a… …57

**Regular**— The term regular can mean normal or obeying rules. Regular may refer to:In organizations: * Regular Army for usage in the U.S. Army * Regular clergy, members of a religious order subject to a rule of life * Regular Force for usage in the Canadian …58

**Cramér–Rao bound**— In estimation theory and statistics, the Cramér–Rao bound (CRB) or Cramér–Rao lower bound (CRLB), named in honor of Harald Cramér and Calyampudi Radhakrishna Rao who were among the first to derive it,[1][2][3] expresses a lower bound on the… …59

**Karush–Kuhn–Tucker conditions**— In mathematics, the Karush–Kuhn–Tucker (KKT) conditions (also known as the Kuhn–Tucker conditions) are necessary for a solution in nonlinear programming to be optimal, provided that some regularity conditions are satisfied. Allowing inequality… …60

**Pattern theory**— Pattern theory, formulated by Ulf Grenander, is a mathematical formalism to describe knowledge of the world as patterns. It differs from other approaches to artificial intelligence in that it does not begin by prescribing algorithms and machinery …