spectrum of matrix
61Spectral 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… …
62David Perry (programmeur) — Pour les articles homonymes, voir Perry. David Perry avec à sa gauche la miniature de son personnage Earthworm Jim. David Perry (né en 1967) est un créateur de jeux vidéo et che …
63radiation measurement — ▪ technology Introduction technique for detecting the intensity and characteristics of ionizing radiation, such as alpha, beta, and gamma rays or neutrons, for the purpose of measurement. The term ionizing radiation refers to those… …
64Amstrad — Infobox Company company name = Amstrad plc company company type = Public ( [http://www.londonstockexchange.com/en gb/pricesnews/prices/system/detailedprices.htm?sym=GB0000953850GBGBXSEAQ0095385AMT LSE:AMT] ) foundation = 1968 location = Brentwood …
65Self-adjoint operator — In mathematics, on a finite dimensional inner product space, a self adjoint operator is one that is its own adjoint, or, equivalently, one whose matrix is Hermitian, where a Hermitian matrix is one which is equal to its own conjugate transpose.… …
66surface analysis — ▪ chemistry Introduction in analytical chemistry (chemistry), the study of that part of a solid that is in contact with a gas or a vacuum. When two phases of matter are in contact, they form an interface. The term surface is usually… …
67Quantum entanglement — Quantum mechanics Uncertainty principle …
68Condorcet method — Part of the Politics series Electoral methods Single winner …
69Vibration — For the soul music group, see The Vibrations. For the machining context, see Machining vibrations. For the albums, see Vibrations (Roy Ayers album) and Vibrations (The Three Sounds album). Classical mechanics …
70David Perry (game developer) — David Perry David Perry, 2009 Born April 4, 1967 (age 44) Lisburn, Northern Ireland Nationality Northern Irish …
