dense ring
Смотреть что такое "dense ring" в других словарях:
Dense submodule — In abstract algebra, specifically in module theory, a dense submodule of a module is a refinement of the notion of an essential submodule. If N is a dense submodule of M, it may also be said it may alternatively be said that N ⊆ M is a… … Wikipedia
Dense plasma focus — Plasma gun redirects here. For the science fiction weapon, see plasma weapon (fiction). A dense plasma focus (DPF) is a machine that produces, by electromagnetic acceleration and compression, a short lived plasma that is so hot and dense that it… … Wikipedia
Ring-tailed Lemur — Taxobox name = Ring tailed LemurMSW3 Groves|pages=117|id=12100056] status = NT trend = down status system = iucn3.1 status ref = regnum = Animalia phylum = Chordata classis = Mammalia ordo = Primates familia = Lemuridae genus = Lemur genus… … Wikipedia
Ring singularity — In general relativity the gravitational singularity at the center of a rotating black hole (a Kerr black hole ) is supposed to form a circle rather than a point. This is often referred to as a ring singularity.Description of a ring… … Wikipedia
ring — 1. A circular band surrounding a wide central opening; a r. shaped or circular structure surrounding an opening or level area. SYN: anulus [TA]. 2. The closed ( i.e., endless) chain of atoms in a cyclic compound; commonly used for “cyclic” or… … Medical dictionary
Primitive ring — In mathematics, especially in the area of abstract algebra known as ring theory, the concept of left primitive ring generalizes that of matrix algebra. Every matrix ring is the endomorphism ring of a finite dimensional vector space, but a… … Wikipedia
Chow ring — In algebraic geometry, the Chow ring (named after W. L. Chow) of an algebraic variety is an algebraic geometric analogue of the cohomology ring of the variety considered as a topological space: its elements are formed out of actual subvarieties… … Wikipedia
Topological ring — In mathematics, a topological ring is a ring R which is also a topological space such that both the addition and the multiplication are continuous as maps : R times; R → R ,where R times; R carries the product topology. General comments The group … Wikipedia
Fibrin ring granuloma — A fibrin ring granuloma is a histopathological finding that is characteristic of Q fever. On hematoxylin eosin staining, the fibrin ring granuloma consists of a central lipid vacuole (usually washed out during fixing and staining, leaving only an … Wikipedia
Corona ring — Corona rings on 380 kV line insulators … Wikipedia
polar ring — an electron dense, annular, anterior thickening of the pellicle of apicocomplexan protozoa, occurring at some stage in the life cycle, and forming part of the apical complex. Called also apical r … Medical dictionary
