distinguished subgroup

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• Characteristic subgroup — In mathematics, particularly in the area of abstract algebra known as group theory, a characteristic subgroup is a subgroup that is invariant under all automorphisms of the parent group.[1][2] Because conjugation is an automorphism, every… …   Wikipedia

• Charakteristische Untergruppe — In der Gruppentheorie ist eine charakteristische Untergruppe einer Gruppe G eine Untergruppe H, die unter jedem Automorphismus von G fest bleibt. Das heißt, eine Untergruppe H von G heißt charakteristisch, wenn für jeden Automorphismus… …   Deutsch Wikipedia

• Tame group — In mathematical group theory, a tame group is a certain kind of group defined in model theory.Formally, we define a bad field as a structure of the form ( K , T ), where K is an algebraically closed field and T is an infinite, proper,… …   Wikipedia

• Austronesian languages — formerly Malayo Polynesian languages Family of about 1,200 languages spoken by more than 200 million people in Indonesia, the Philippines, Madagascar, the central and southern Pacific island groups (except most of New Guinea; see Papuan… …   Universalium

• Ojibwe dialects — The Ojibwe language is spoken in a series of dialects occupying adjacent territories, forming a language complex in which mutual intelligibility between adjacent dialects may be comparatively high but declines between some non adjacent dialects.… …   Wikipedia

• Slavic languages — or Slavonic languages Branch of the Indo European language family spoken by more than 315 million people in central and eastern Europe and northern Asia. The Slavic family is usually divided into three subgroups: West Slavic, comprising Polish,… …   Universalium

• Parity of zero — Zero objects, divided into two equal groups Zero is an even number. In other words, its parity the quality of an integer being even or odd is even. Zero fits the definition of even number : it is an integer multiple of 2, namely 0 × 2. As a… …   Wikipedia

• Delaware languages — Delaware Spoken in United States, in modern times Canada Region Around the lower Delaware and Hudson rivers in the United States; one or two Munsee speakers in Canada; Unami groups in Oklahoma Native speakers …   Wikipedia

• Canadian system of soil classification — The Canadian system of soil classification is more closely related to the American system than any other. They differ in several ways. The Canadian system is designed to cover only Canadian soils. The Canadian system dispenses with a sub order… …   Wikipedia

• GENETIC ANCESTRY, JEWISH — Background The human genome refers to approximately three billion chemical letters (nucleotides) comprising the sequence of deoxyribonucleic acid (DNA) in almost every cell of each human being. There are four different nucleotides (adenine,… …   Encyclopedia of Judaism

• Möbius transformation — Not to be confused with Möbius transform or Möbius function. In geometry, a Möbius transformation of the plane is a rational function of the form of one complex variable z; here the coefficients a, b, c, d are complex numbers satisfying ad − …   Wikipedia