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**identically zero**— noun In mathematics, a function which is equal to the zero function and not merely zero at a particular point in its domain … Wiktionary**Zero (complex analysis)**— In complex analysis, a zero of a holomorphic function f is a complex number a such that f(a) = 0. Contents 1 Multiplicity of a zero 2 Existence of zeros 3 Properties … Wikipedia**Zero-product property**— In the mathematical areas of algebra and analysis, the zero product property, also known as the zero product rule , is an abstract and explicit statement of the familiar property from elementary mathematics that if the product of two real numbers … Wikipedia**Zero-day virus**— A Zero day virus is a previously unknown computer virus or other malware for which specific antivirus software signatures are not yet available.[1] Traditionally, antivirus software relies upon signatures to identify malware. This can be very… … Wikipedia**Hewitt-Savage zero-one law**— The Hewitt Savage zero one law is a theorem in probability theory, similar to Kolmogorov s zero one law, that specifies that a certain type of event will either almost surely happen or almost surely not happen. It is sometimes known as the Hewitt … Wikipedia**Kolmogorov's zero-one law**— In probability theory, Kolmogorov s zero one law, named in honor of Andrey Nikolaevich Kolmogorov, specifies that a certain type of event, called a tail event , will either almost surely happen or almost surely not happen; that is, the… … Wikipedia**Heat equation**— The heat equation is an important partial differential equation which describes the distribution of heat (or variation in temperature) in a given region over time. For a function of three spatial variables ( x , y , z ) and one time variable t ,… … Wikipedia**Kurtosis**— In probability theory and statistics, kurtosis (from the Greek word κυρτός, kyrtos or kurtos, meaning bulging) is any measure of the peakedness of the probability distribution of a real valued random variable.[1] In a similar way to the concept… … Wikipedia**Stalk (sheaf)**— The stalk of a sheaf is a mathematical construction capturing the behaviour of a sheaf around a given point.Motivation and definitionSheaves are defined on open sets, but the underlying topological space X consists of points. It is reasonable to… … Wikipedia**Fourier transform**— Fourier transforms Continuous Fourier transform Fourier series Discrete Fourier transform Discrete time Fourier transform Related transforms The Fourier transform is a mathematical operation that decomposes a function into its constituent… … Wikipedia