spectral map

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• Spectral sequence — In the area of mathematics known as homological algebra, especially in algebraic topology and group cohomology, a spectral sequence is a means of computing homology groups by taking successive approximations. Spectral sequences are a… …   Wikipedia

• Spectral theory of ordinary differential equations — In mathematics, the spectral theory of ordinary differential equations is concerned with the determination of the spectrum and eigenfunction expansion associated with a linear ordinary differential equation. In his dissertation Hermann Weyl… …   Wikipedia

• Spectral theory of compact operators — In functional analysis, compact operators are linear operators that map bounded sets to precompact ones. Compact operators acting on a Hilbert space H is the closure of finite rank operators in the uniform operator topology. In general, operators …   Wikipedia

• Choropleth map — The US Presidential Election of 2004, visualised using a choropleth map A choropleth map (Greek χώρος + πληθαίν:, ( area/region + multiply ) is a thematic map in which areas are shaded or patterned in proportion to the measurement of the… …   Wikipedia

• Eilenberg-Moore spectral sequence — In mathematics, in the field of algebraic topology, the Eilenberg Moore spectral sequence addresses the calculation of the homology groups of a pullback over a fibration. The spectral sequence formulates the calculation from knowledge of the… …   Wikipedia

• astronomical map — Introduction       any cartographic representation of the stars, galaxies, or surfaces of the planets and the Moon. Modern maps of this kind are based on a coordinate system analagous to geographic latitude and longitude. In most cases, modern… …   Universalium

• Adams spectral sequence — In mathematics, the Adams spectral sequence is a spectral sequence introduced by Adams (1958). Like all spectral sequences, it is a computational tool; it relates homology theory to what is now called stable homotopy theory. It is a… …   Wikipedia

• Grothendieck spectral sequence — In mathematics, in the field of homological algebra, the Grothendieck spectral sequence is a technique that allows one to compute the derived functors of the composition of two functors Gcirc F, from knowledge of the derived functors of F and G… …   Wikipedia

• orthophoto map — /ɔθoʊˈfoʊtoʊ mæp/ (say awthoh fohtoh map) noun a map, derived from aerial photography, which has the spectral qualities of a photograph and the spatial attributes of a map. {orthophoto(graph) + map} …  

• Paul Lewi — Paul J. Lewi (born 4 Jan 1938) is a Belgian scientist, who elaborated Spectral Map Analysis in 1975 and was one of the cofounders of chemometrics in 1983. Biography Paul Lewi was born in 1938 in Westmalle, Belgium. His parents, Leo Lewi and… …   Wikipedia

• Principal components analysis — Principal component analysis (PCA) is a vector space transform often used to reduce multidimensional data sets to lower dimensions for analysis. Depending on the field of application, it is also named the discrete Karhunen Loève transform (KLT),… …   Wikipedia