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Kind of mathematical function
and in particular measure theory, a measurable function is a function between the underlying sets of two measurable spaces that preserves the structure
Measurable_function
Bochner-measurable function taking values in a Banach space is a function that equals almost everywhere the limit of a sequence of measurable countably-valued
Bochner_measurable_function
Method of mathematical integration
products of a measurable set with an interval. An equivalent way to introduce the Lebesgue integral is to use so-called simple functions, which generalize
Lebesgue_integral
Conditions for switching order of integration in calculus
is similar but is applied to a non-negative measurable function rather than to an integrable function over its domain. The Fubini and Tonelli theorems
Fubini's_theorem
weakly measurable function taking values in a Banach space is a function whose composition with any element of the dual space is a measurable function in
Weakly_measurable_function
Generalization of mass, length, area and volume
{\displaystyle X} , defining subsets of X {\displaystyle X} that are "measurable". A set function μ {\displaystyle \mu } from Σ {\displaystyle \Sigma } to the
Measure_(mathematics)
Strong measurability has a number of different meanings, some of which are explained below. For a function f with values in a Banach space (or Fréchet
Strongly_measurable_function
Function spaces generalizing finite-dimensional p norm spaces
{\displaystyle \{s\in S:f(s)\neq g(s)\}} is measurable and has measure zero. Similarly, a measurable function f {\displaystyle f} (and its absolute value)
Lp_space
Function in mathematics
in probability theory and extreme value theory. Definition 1. A measurable function L : (0, +∞) → (0, +∞) is called slowly varying (at infinity) if for
Slowly_varying_function
Function that attains finitely many values
For example, simple functions attain only a finite number of values. Some authors also require simple functions to be measurable, as used in practice
Simple_function
"Pushed forward" from one measurable space to another
("pushing forward") a measure from one measurable space to another using a measurable function. Given measurable spaces ( X 1 , Σ 1 ) {\displaystyle (X_{1}
Pushforward_measure
Mathematical concept in measure theory
an approximate limit. This generalization provides insights into measurable functions with applications in real analysis and geometric measure theory.
Approximately continuous function
Approximately_continuous_function
Mathematical function that outputs real values
a function f is such that the preimage f −1(B) of any Borel set B belongs to that σ-algebra, then f is said to be measurable. Measurable functions also
Real-valued_function
Measurable function: the preimage of each measurable set is measurable. Borel function: the preimage of each Borel set is a Borel set. Baire function
List_of_types_of_functions
Concept in probability theory
{\displaystyle (Y,{\mathcal {B}})} arbitrary measurable spaces, and let f : X → Y {\displaystyle f:X\to Y} be a measurable function. Now define κ ( d y | x ) = δ f
Markov_kernel
Variable representing a random phenomenon
random variable is defined as a measurable function from a probability measure space (called the sample space) to a measurable space. This allows consideration
Random_variable
Theorems on the convergence of bounded monotonic sequences
that says that for sequences of non-negative pointwise-increasing measurable functions 0 ≤ f 1 ( x ) ≤ f 2 ( x ) ≤ ⋯ {\displaystyle 0\leq f_{1}(x)\leq f_{2}(x)\leq
Monotone_convergence_theorem
Lebesgue-measurable functions does not have to be Lebesgue-measurable as well. Nevertheless, a composition of a measurable function with a continuous function
Carathéodory_function
Function whose squared absolute value has finite integral
function or square-summable function, is a real- or complex-valued measurable function for which the integral of the square of the absolute value is finite
Square-integrable_function
Basic object in measure theory; set and a sigma-algebra
In mathematics, a measurable space or Borel space is a basic object in measure theory. It consists of a set and a σ-algebra, which defines the subsets
Measurable_space
Description of continuous random distribution
. {\displaystyle f={\frac {dX_{*}P}{d\mu }}.} That is, f is any measurable function with the property that: Pr [ X ∈ A ] = ∫ X − 1 A d P = ∫ A f d μ
Probability_density_function
smallest σ-algebra such that all compactly supported continuous functions are measurable. Thus, measures defined on this σ-algebra, called Baire measures
Baire_set
Type of vector space in math
real line. For instance, if w is any positive measurable function, the space of all measurable functions f on the interval [0, 1] satisfying ∫ 0 1 | f
Hilbert_space
Theorem in measure theory
measurable functions on a measure space ( S , Σ , μ ) {\displaystyle (S,\Sigma ,\mu )} . Suppose that the sequence converges pointwise to a function f
Dominated_convergence_theorem
Expressing a measure as an integral of another
on the same measurable space. A measure is a set function that assigns a consistent magnitude to the measurable subsets of a measurable space. Examples
Radon–Nikodym_theorem
Expected value of a random variable given that certain conditions are known to occur
measurable function such that min g measurable E ( ( X − g ( Y ) ) 2 ) = E ( ( X − e X ( Y ) ) 2 ) . {\displaystyle \min _{g{\text{ measurable }}}\operatorname
Conditional_expectation
Category whose objects are measurable spaces and whose morphisms are measurable maps
category because the composition of two measurable maps is again measurable, and the identity function is measurable. N.B. Some authors reserve the name Meas
Category_of_measurable_spaces
Inputs for which a function's value is non-zero
\mu } -almost everywhere. In that case, the essential support of a measurable function f : X → R {\displaystyle f:X\to \mathbb {R} } written e s s s u p
Support_(mathematics)
Theorem in measure theory
criterion states that an almost-everywhere finite function is measurable if and only if it is a continuous function on nearly all its domain. In the informal
Lusin's_theorem
Borel sets to be measurable. Cartan Cartan's theorems A and B. Cartwright Cartwright's theorem gives a bounded for a p-valent entire function. Cauchy 1. The
Glossary of real and complex analysis
Glossary_of_real_and_complex_analysis
Real function with secant line between points above the graph itself
real-valued Lebesgue measurable function that is midpoint-convex is convex: this is a theorem of Sierpiński. In particular, a continuous function that is midpoint
Convex_function
Negative of a convex function
) [ y − x ] {\displaystyle f(y)\leq f(x)+f'(x)[y-x]} A Lebesgue measurable function on an interval C is concave if and only if it is midpoint concave
Concave_function
Function whose absolute value has a finite integral
same thing as "Lebesgue integrable" for measurable functions. The same thing goes for a complex-valued function. Let us define f + ( x ) = max ( ℜ f (
Absolutely integrable function
Absolutely_integrable_function
Category whose objects are measurable spaces and whose morphisms are Markov kernels
whose objects are measurable spaces and whose morphisms are Markov kernels. It is analogous to the category of sets and functions, but where the arrows
Category_of_Markov_kernels
Space of bounded sequences
}=L^{\infty }(X,\Sigma ,\mu )} , the vector space of essentially bounded measurable functions with the essential supremum norm, are two closely related Banach
L-infinity
Type of probability space
called Brownian motion) in the form of a measurable map from the unit interval to the space of continuous functions. The theory of standard probability spaces
Standard_probability_space
Function which is integrable on its domain
f : Ω → C {\textstyle f:\Omega \to {\mathbb {C}}} be a Lebesgue measurable function. If f {\textstyle f} on Ω {\textstyle \Omega } is such that ∫ K |
Locally_integrable_function
Operation in mathematical calculus
positive function, and therefore has a well-defined improper Riemann integral). For a suitable class of functions (the measurable functions) this defines
Integral
Branch of functional analysis
unit-preserving homomorphism from the ring of complex-valued bounded measurable functions on R. If ξ is an element of H, then ν ξ : E ↦ ⟨ π T ( 1 E ) ξ , ξ
Borel_functional_calculus
Algebraic structure of set algebra
a measurable space. A function between two measurable spaces is called a measurable function if the preimage of every measurable set is measurable. The
Σ-algebra
Property of uniformly space-filling movement
) {\displaystyle (X,{\mathcal {B}})} be a measurable space. If T {\displaystyle T} is a measurable function from X {\displaystyle X} to itself and μ {\displaystyle
Ergodicity
Lemma in measure theory
}}_{\geq 0}})} -measurable non-negative functions f n : X → [ 0 , + ∞ ] {\displaystyle f_{n}:X\to [0,+\infty ]} . Define the function f : X → [ 0 , +
Fatou's_lemma
Type of random mathematical object
Borel measurable sets B 1 , … , B k {\displaystyle \textstyle B_{1},\dots ,B_{k}} , an inhomogeneous Poisson process with (intensity) function λ ( x )
Poisson_point_process
Average value of a random variable
a measurable function of X , {\displaystyle X,} g ( X ) , {\displaystyle g(X),} given that X {\displaystyle X} has a probability density function f (
Expected_value
Inequality between integrals in Lp spaces
p,q\in [1,\infty ]} with 1/p + 1/q = 1. Then for all measurable real- or complex-valued functions f and g on S, ‖ f g ‖ 1 ≤ ‖ f ‖ p ‖ g ‖ q . {\displaystyle
Hölder's_inequality
Concept in mathematics
measure space, and B {\displaystyle B} be a Banach space, and define a measurable function f : X → B {\displaystyle f:X\to B} . When B = R {\displaystyle B=\mathbb
Bochner_integral
{\displaystyle f} be a real-valued measurable function. The distribution function associated with f {\displaystyle f} is the function d f : [ 0 , ∞ ) → R ∪ { ∞
Distribution function (measure theory)
Distribution_function_(measure_theory)
Technique in integral evaluation
Borel measurable function g on Y. In geometric measure theory, integration by substitution is used with Lipschitz functions. A bi-Lipschitz function is a
Integration_by_substitution
Mathematical transform that expresses a function of time as a function of frequency
forward and the reverse transform. The signs must be opposites. A measurable function f : R → C {\displaystyle f:\mathbb {R} \to \mathbb {C} } is called
Fourier_transform
{\displaystyle \Phi \colon G\times S\to S} If Φ {\displaystyle \Phi } is a measurable function from G ⊗ S {\displaystyle {\mathcal {G}}\otimes {\mathcal {S}}} to
Measurable_acting_group
Model in probability theory
Y t {\displaystyle Y_{t}} is a Σ t {\displaystyle \Sigma _{t}} -measurable function; for each t {\displaystyle t} , Y t {\displaystyle Y_{t}} lies in
Martingale (probability theory)
Martingale_(probability_theory)
Area of mathematics
{\displaystyle [\,f\,]} of measurable functions whose absolute value's p {\displaystyle p} -th power has finite integral; that is, functions f {\displaystyle f}
Functional_analysis
Stochastic way of assigning quantities across a space
f(x)\;\operatorname {E} \zeta (\mathrm {d} x)} for every positive measurable function f {\displaystyle f} is called the intensity measure of ζ {\displaystyle
Random_measure
Mathematical function for the probability a given outcome occurs in an experiment
measurable function X {\displaystyle X} from a probability space ( Ω , F , P ) {\displaystyle (\Omega ,{\mathcal {F}},\mathbb {P} )} to a measurable space
Probability_distribution
Concept within complex analysis
metric space. When 0 < p ≤ 1 {\displaystyle 0<p\leq 1} , a bounded measurable function f {\displaystyle f} of compact support is in the Hardy space H p
Hardy_space
Mathematical description of quantum state
measurements, to the wave function ψ and calculate the statistical distributions for measurable quantities. Wave functions can be functions of variables other
Wave_function
Statement in probability theory
The "if" part simply states that the composition of two measurable functions is measurable. The "only if" part is proven below. Remark. The lemma remains
Doob–Dynkin_lemma
Form of continuity for functions
{\displaystyle \nu ,} which means that there exists a ν {\displaystyle \nu } -measurable function f {\displaystyle f} taking values in [ 0 , + ∞ ) , {\displaystyle
Absolute_continuity
Construct related to weighted sums and averages
\Omega \to \mathbb {R} ^{+}} is a non-negative measurable function. In this context, the weight function w ( x ) {\displaystyle w(x)} is sometimes referred
Weight_function
A Markov chain on a measurable state space is a discrete-time-homogeneous Markov chain with a measurable space as state space. The definition of Markov
Markov chains on a measurable state space
Markov_chains_on_a_measurable_state_space
Theorem on operator interpolation
prove the result for simple functions and eventually show how the argument can be extended by density to all measurable functions. By symmetry, let us assume
Riesz–Thorin_theorem
Set of functions between two fixed sets
≤ p ≤ ∞ {\displaystyle 1\leq p\leq \infty } , is the Lp space of measurable functions whose p-norm ‖ f ‖ p = ( ∫ Ω | f | p ) 1 / p {\textstyle \|f\|_{p}=\left(\int
Function_space
Inequality in mathematics
integral version of Hardy's inequality states the following: if f is a measurable function with non-negative values, then ∫ 0 ∞ ( 1 x ∫ 0 x f ( t ) d t ) p
Hardy's_inequality
Collection of random variables
considering a measurable space of functions, defining a suitable measurable mapping from a probability space to this measurable space of functions, and then
Stochastic_process
an operator on a certain function space that conserves the mass (the so-called Markov property). If the underlying measurable space is topologically sufficiently
Markov_operator
Association of one output to each input
mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the
Function_(mathematics)
Mathematical concept
every n > N and for every measurable set A. As before, this implies convergence of integrals against bounded measurable functions, but this time convergence
Convergence_of_measures
Differential equations involving stochastic processes
{\displaystyle F:\Omega \to U} be some initial condition, meaning it is a measurable function with respect to the initial σ-algebra. Let ζ : Ω → R ¯ + {\displaystyle
Stochastic differential equation
Stochastic_differential_equation
Property of a dynamical system where solutions near an equilibrium point remain so
{\displaystyle r_{2}\in C^{0}(\mathbb {R} ,\mathbb {R} )} and a Lebesgue measurable function h : R → R {\displaystyle h:\mathbb {R} \rightarrow \mathbb {R} }
Lyapunov_stability
Measure of prediction accuracy of a forecast
Regression models aim at finding a good model for the pair, that is a measurable function g from R d {\displaystyle \mathbb {R} ^{d}} to R {\displaystyle \mathbb
Mean absolute percentage error
Mean_absolute_percentage_error
\Omega )} be a measurable space and let h : X → [ 0 , 1 ] {\displaystyle h:X\to [0,1]} be an Ω {\displaystyle \Omega } -measurable function. The Sugeno integral
Sugeno_integral
Theorem in probability and statistics
measure space (Ω, μ) and a measurable map X from Ω to a measurable space Ω'. The theorem then says that for any measurable function g on Ω' which is valued
Law of the unconscious statistician
Law_of_the_unconscious_statistician
E ) {\displaystyle (E,{\mathcal {E}})} a measurable space. A random element with values in E is a function X: Ω→E which is ( F , E ) {\displaystyle ({\mathcal
Random_element
theorem is that, given any measurable function g : Y → X {\displaystyle g:Y\to X} , there exists a universally measurable function f : g ( Y ) ⊂ X → Y {\displaystyle
Jankov–von Neumann uniformization theorem
Jankov–von_Neumann_uniformization_theorem
Averages of repeated trials converge to the expected value
continuous at each θ ∈ Θ for almost all xs, and measurable function of x at each θ. there exists a dominating function d(x) such that E[d(X)] < ∞, and ‖ f ( x
Law_of_large_numbers
Mathematical set with some added structure
of sets (or functions) irrespective of any topology. Every subset of a measurable space is itself a measurable space. Standard measurable spaces (also
Space_(mathematics)
Abstract structure modeling spaces of probability measures
In mathematics, the Giry monad is a construction that assigns to a measurable space a space of probability measures over it, equipped with a canonical
Giry_monad
Maximized objective function of an optimization problem
{\displaystyle u\in U[t_{0},t_{1}]} , where u {\displaystyle u} is a Lebesgue measurable function from [ t 0 , t 1 ] {\displaystyle [t_{0},t_{1}]} to some prescribed
Value_function
Measure used in functional analysis
to all bounded complex-valued measurable functions on X, and we have the following. Theorem—For any bounded Borel function f {\displaystyle f} on X {\displaystyle
Projection-valued_measure
Theorem in measure theory
B ) {\displaystyle x\mapsto \mu _{x}(B)} is a Borel-measurable function for each Borel-measurable set B ⊆ Y {\displaystyle B\subseteq Y} ; μ x {\displaystyle
Disintegration_theorem
Topics referred to by the same term
Pushforward measure, measure induced on the target measure space by a measurable function Pushout (category theory), the categorical dual of pullback Direct
Pushforward
multilayer feedforward networks are capable of approximating any Borel measurable function from one finite dimensional space to another to any desired degree
Timeline_of_machine_learning
Measure with complex values
measure μ {\displaystyle \mu } on a measurable space ( X , Σ ) {\displaystyle (X,\Sigma )} is a complex-valued function μ : Σ → C {\displaystyle \mu :\Sigma
Complex_measure
measurable selection theorem is a result from measure theory that gives a sufficient condition for a set-valued function to have a measurable selection
Kuratowski and Ryll-Nardzewski measurable selection theorem
Kuratowski_and_Ryll-Nardzewski_measurable_selection_theorem
Bound on probability of a random variable being far from its mean
measure space, and let f {\displaystyle f} be an extended real-valued measurable function defined on X {\displaystyle X} . Then for any real number t > 0 {\displaystyle
Chebyshev's_inequality
Concept in mathematics
mathematics, the layer cake representation of a non-negative, real-valued measurable function f {\displaystyle f} defined on a measure space ( Ω , A , μ ) {\displaystyle
Layer_cake_representation
Type of statistical analysis
regression function) belongs to a set of functions parametrized by a set Θ {\displaystyle \Theta } , one searches for a (measurable) function T n : X n
Nonparametric_statistics
Theorem concerning uniform convergence
for the uniform convergence of a pointwise convergent sequence of measurable functions. It is also named Severini–Egoroff theorem or Severini–Egorov theorem
Egorov's_theorem
Theorem of convex functions
density function. Then Jensen's inequality becomes the following statement about convex integrals: If g is any real-valued measurable function and φ {\textstyle
Jensen's_inequality
Mathematical functions
{\displaystyle X} , and θ {\displaystyle \theta } a Young function. For any measurable function f {\displaystyle f} on X {\displaystyle X} , we define the
Young_function
Linear operator equal to its own adjoint
measure space and h : X → R {\displaystyle h:X\to \mathbb {R} } a measurable function on X {\displaystyle X} . Then the operator T h : Dom T h → L 2
Self-adjoint_operator
Random measure in probability theory
is simply the empirical mean of the indicator function, Pn(A) = Pn IA. For a fixed measurable function f {\displaystyle f} , P n f {\displaystyle P_{n}f}
Empirical_measure
one with the fewest measurable sets) such that every continuous linear function on X {\displaystyle X} is a measurable function. In general, A ( X ,
Cylindrical_σ-algebra
Triangle inequality in Lp spaces
{1}{p}}\mu _{1}(\mathrm {d} x)=\|f_{1}\|_{p}+\|f_{2}\|_{p}.} If the measurable function F : S 1 × S 2 → R {\textstyle F:S_{1}\times S_{2}\to \mathbb {R}
Minkowski_inequality
Mathematical inequality about the convolution of two functions
any f ∈ L p ( G , μ ) {\displaystyle f\in L^{p}(G,\mu )} and any measurable function g {\displaystyle g} on G {\displaystyle G} that belongs to the weak
Young's convolution inequality
Young's_convolution_inequality
Function type in graph theory
statistics, a graphon (also known as a graph limit) is a symmetric measurable function W : [ 0 , 1 ] 2 → [ 0 , 1 ] {\displaystyle W:[0,1]^{2}\to [0,1]}
Graphon
Class of mathematical sets
the real numbers might fail to be Lebesgue measurable, every Borel set of reals is universally measurable. Which sets are Borel can be specified in a
Borel_set
Definition of mathematical integration
])}{2\varepsilon }}=1} (where μ denotes Lebesgue measure). A Lebesgue-measurable function g : E → R is said to have approximate limit y at x (a point of density
Khinchin_integral
Monte Carlo algorithm
_{\Omega }A(x)P(x)\,dx,} where A ( x ) {\displaystyle A(x)} is a (measurable) function of interest. For example, consider a statistic E ( x ) {\displaystyle
Metropolis–Hastings_algorithm
Property of functions which is weaker than continuity
that if f n {\displaystyle f_{n}} is a sequence of non-negative measurable functions, then ∫ lim inf f n ≤ lim inf ∫ f n {\displaystyle \int \liminf f_{n}\leq
Semi-continuity
MEASURABLE FUNCTION
MEASURABLE FUNCTION
Girl/Female
Indian
Immeasurable, Boundless
Boy/Male
Assamese, Hindu, Indian, Kannada, Marathi, Sanskrit, Telugu
Immeasurable Splendour
Boy/Male
Sikh
Pleasurable
Boy/Male
Tamil
Sukhamay | ஸூக஼மயÂ
Pleasurable
Sukhamay | ஸூக஼மயÂ
Boy/Male
Egyptian
God of the immeasurable.
Boy/Male
Indian, Sanskrit
Immeasurable Brightness
Boy/Male
Tamil
Aniteja | அநிதேஜ஼ாÂ
Immeasurable splendor
Aniteja | அநிதேஜ஼ாÂ
Girl/Female
Tamil
Immeasurable, Boundless
Boy/Male
Hindu, Indian, Punjabi, Sikh
Of Immeasurable Divinity
Boy/Male
Australian, Indian, Telugu
Infinite; Immeasurable; Boundless
Boy/Male
Hindu
Immeasurable splendor
Girl/Female
Egyptian
Goddess of the immeasurable.
Boy/Male
Tamil
Atultejas | அதà¯à®²à®¤à¯‡à®œà®¸
Immeasurable brightness
Atultejas | அதà¯à®²à®¤à¯‡à®œà®¸
Boy/Male
Indian, Sanskrit
Pleasurable
Boy/Male
Hindu, Indian, Marathi
Immeasurable
Girl/Female
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Tamil, Telugu
Immeasurable
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
Pleasurable
Girl/Female
Indian
Immeasurable, Boundless
Girl/Female
Tamil
Immeasurable, Boundless
Boy/Male
Indian, Punjabi, Sikh
Foster of Immeasurable
MEASURABLE FUNCTION
MEASURABLE FUNCTION
Girl/Female
Australian, French, Greek
Follower of Dionysius; Feminine of Dennis
Boy/Male
Hindu
Boy/Male
Indian, Punjabi, Sikh
Love for Pride
Girl/Female
Sikh
A Goddess
Boy/Male
American, Australian, British, English, French, Norse
Mighty with a Spear
Girl/Female
Muslim
Virginity
Boy/Male
Armenian, Australian
Fighter
Male
German
Frisian and Scandinavian form of German Eckhard, EILERT means "strong edge."
Girl/Female
Indian
A Lotus Blooming in a Moonlight; Blessed with Beauty; Lord Vishnu's Daughter
Girl/Female
Indian
Strong
MEASURABLE FUNCTION
MEASURABLE FUNCTION
MEASURABLE FUNCTION
MEASURABLE FUNCTION
MEASURABLE FUNCTION
a.
Immeasurable.
n.
The quality of being mensurable.
n.
The quality or state of being mensurable; measurableness.
a.
Capable of being measured; measurable.
a.
Immeasurable.
a.
Incapble of being measured; indefinitely extensive; illimitable; immensurable; vast.
a.
Immeasurable.
a.
Capable of being measured; susceptible of mensuration or computation.
a.
Without measure; unlimited; immeasurable.
a.
Not censurable.
a.
Capable of affording pleasure or satisfaction; gratifying; abounding in pleasantness or pleasantry.
a.
Deserving reproach; censurable.
a.
Moderate; temperate; not excessive.
adv.
In an immeasurable manner or degree.
a.
Leisurely.
a.
Vacant of employment; not occupied; idle; leisure; as leisurable hours.
a.
Deserving of censure; blamable; culpable; reprehensible; as, a censurable person, or censurable conduct.
n.
Any pleasurable sensation.
adv.
So as to be measurable by quantity; quantitatively.
a.
Immeasurable.