subgroups
91Dihedral group — This snowflake has the dihedral symmetry of a regular hexagon. In mathematics, a dihedral group is the group of symmetries of a regular polygon, including both rotations and reflections.[1] Dihedr …
92Nilpotent group — Concepts in group theory category of groups subgroups, normal subgroups group homomorphisms, kernel, image, quotient direct product, direct sum semidirect product, wreath product …
93Han Chinese — This article is about the majority ethnic group within China. For other uses, see Han (disambiguation). Han Chinese 漢族/汉族 漢人/汉人 …
94Van der Waerden's theorem — is a theorem of the branch of mathematics called Ramsey theory. The theorem is about the basic structure of the integers. It is named for Dutch mathematician B. L. van der Waerden. [B.L. van der Waerden, Beweis einer Baudetschen Vermutung , Nieuw …
95Möbius 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 − …
96Maximal torus — In the mathematical theory of compact Lie groups a special role is played by torus subgroups, in particular by the maximal torus subgroups. A torus in a Lie group G is a compact, connected, abelian Lie subgroup of G (and therefore isomorphic to… …
97Frattini subgroup — Hasse diagram of the lattice of subgroups of the dihedral group Dih4 In the 3 element layer are the maximal subgroups; their intersection (the F. s.) is the central element in the 5 element layer. So Dih4 has only one non generating element… …
98Wari' — The Waricaca , also known as the Pakaa Nova, are an Amerindian nation indigenous to the Amazon rainforest. They are native to the state of Rondônia, Brazil and were first seen by European settlers at the shores of the river Pakaa Nova, which is a …
99Ruffed lemur — Taxobox name = Ruffed lemursMSW3 Groves|pages=Varecia|id=12100059] image caption = Black and white Ruffed Lemur ( Varecia variegata ) regnum = Animalia phylum = Chordata classis = Mammalia ordo = Primates subordo = Strepsirrhini familia =… …
100ABO blood group system — ABO redirects here. For other uses, see ABO (disambiguation). H substance redirects here. For use in inflammation, see histamine. ABO blood group antigens present on red blood cells and IgM antibodies present in the serum The ABO blood group… …
