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# Mathematics Encyclopedia

# E

A - B - C - D - E - F - G - H - I - J - K - L - M -

E (complexity)

E (mathematical constant)

E-dense semigroup

E-function

E-number

E-semigroup

E6 (mathematics)

E6 polytope

E7½

E7 (mathematics)

E7 polytope

E8 (mathematics)

E8 lattice

E8 manifold

E8 polytope

E9 honeycomb

E∞-operad

Eakin–Nagata theorem

Ear decomposition

Earle–Hamilton fixed-point theorem

Earley parser

Early Algebra

Early numeracy

Early stopping

Earnshaw's theorem

Earth mover's distance

Earthquake map

East Journal on Approximations

Eastern Arabic numerals

Easton's theorem

Eaton's inequality

Eberhard's theorem

Eberlein–Šmulian theorem

Eccentricity

Eccentricity vector

Echo removal

Eckmann–Hilton argument

Ecliptic latitude

Ecliptic longitude

Ecological correlation

Ecological fallacy

Ecological regression

Ecological validity

Econometrics

Econometric Theory

Econometrica

Economic epidemiology

Eddy covariance

Eddy current testing

Eden's conjecture

Edge (geometry)

Edge and vertex spaces

Edge chromatic number

Edge coloring

Edge-contracted icosahedron

Edge contraction

Edge cover

Edge covering number

Edge cycle cover

Edge dominating set

Edge-graceful labeling

Edge-matching puzzle

Edge of chaos

Edge-of-the-wedge theorem

Edge tessellation

Edge-transitive graph

Edgeworth conjecture

Edinburgh Mathematical Notes

Edinburgh Mathematical Society

Edmonds–Karp algorithm

Effective Nullstellensatz

Edinb Edmonds' algorithm

Educational Studies in Mathematics

Edwards curve

Edyth May Sliffe Award

Eells–Kuiper manifold

Eeny, meeny, miny, moe

Effaceable functor

Effect algebra

Effect size

Effective action

Effective complexity

Effective descriptive set theory

Effective dimension

Effective domain

Effective method

Effective Polish space

Effective results in number theory

Effective sample size

Effective selfing model

Effective topos

Efficiency (statistics)

Efficient estimator

Egorov generalized function algebra

Egorov system of surfaces

Egorychev method

Egyptian algebra

Egyptian fraction

Egyptian geometry

Egyptian Mathematical Leather Roll

Egyptian numerals

Ehlers group

EHP spectral sequence

Ehrenfest model

Ehrenfest theorem

Ehrenfeucht–Fraïssé game

Ehrenfeucht–Mostowski theorem

Ehresmann connection

Ehrenpreis conjecture

Ehrenpreis's fundamental principle

Ehresmann connection

Ehresmann's theorem

Ehrhart polynomial

Ehrhart's volume conjecture

Ehrling's lemma

Eichler order

Eichler–Shimura congruence relation

Eichler–Shimura isomorphism

Eigencurve

Eigendecomposition of a matrix

Eigenface

Eigenform

Eigenfunction

Eigengap

Eigenmode expansion

Eigenoperator

Eigenplane

Eigenvalue algorithm

Eigenvalue perturbation

Eichler cohomology

Eigenfunction

Eigenvalue

Eigenvector

Eigenvalues and eigenvectors of the second derivative

Eigenvector centrality

Eight-dimensional space

Eight queens puzzle

Eighth dimension

Eighth power

Eikonal approximation

Eikonal equation

Eilenberg–Ganea conjecture

Eilenberg–Ganea theorem

Eilenberg–MacLane space

Eilenberg–Mazur swindle

Eilenberg–Moore spectral sequence

Eilenberg–Steenrod axioms

Eilenberg–Zilber theorem

Eilenberg's inequality

Einstein field equations

Einstein function

Einstein group

Einstein–Infeld–Hoffmann equations

Einstein Institute of Mathematics

Einstein manifold

Einstein problem

Einstein tensor

Eisenbud–Levine–Khimshiashvili signature formula

Eisenstein cohomology

Eisenstein ideal

Eisenstein integral

Eisenstein–Kronecker number

Eisenstein prime

Eisenstein reciprocity

Eisenstein series

Eisenstein sum

Eisenstein triple

Eisenstein's criterion

EISPACK

Ekeland variational principle

Either–or topology

Ekeland's variational principle

El Nombre

EL++

Elastic map

Elastic net regularization

Elastic pendulum

Elasticity of a function

Elbow of a curve

Elbow of the curve

Electoral Calculus

ELECTRE

Electric field gradient

Electric-field integral equation

Electrical capacitance tomography

Electrical Impedance and Diffuse Optical Tomography Reconstruction Software

Electrical impedance tomography

Electrical resistivity tomography

Electricity price forecasting

Electromagnetic stress–energy tensor

Electromagnetic tensor

Electromagnetic wave equation

Electromagnetism uniqueness theorem

Electron-longitudinal acoustic phonon interaction

Electronic Colloquium on Computational Complexity

Electronic Journal of Combinatorics

Electronic Journal of Statistics

Electronic Transactions on Numerical Analysis

Element (category theory)

Element (mathematics)

ELEMENTARY

Elementary abelian group

Elementary algebra

Elementary amenable group

Elementary arithmetic

Elementary class

Elementary definition

Elementary diagram

Elementary divisors

Elementary equivalence

Elementary event

Elementary function

Elementary function arithmetic

Elementary group

Elementary matrix

Elementary number

Elementary operations

Elementary operations (disambiguation)

Elementary number theory

Elementary theory

Elementary sentence

Elementary symmetric polynomial

Elementary theory

Elemente der Mathematik

Éléments de géométrie algébrique

Éléments de mathématique

Elements of Dynamic

Eleusis (card game)

Elevator paradox

Elias Bassalygo bound

Elias delta coding

Elias gamma coding

Elias omega coding

Elie Cartan Prize

Elimination of quantifiers

Elimination theory

Elizabeth L. Scott Award

ELKA

Elkies trinomial curves

Ellingham–Horton graph

Elliott-Daboussi theorem

Elliott–Halberstam conjecture

Elliott Ward Cheney Jr.

Ellipsis

Ellipsoidal coordinates

Ellipsoidal harmonic

Ellipsoidal coordinates

Elliptic algebra

Elliptic boundary value problem

Elliptic cohomology

Elliptic curve

Elliptic complex

Elliptic coordinate system

Elliptic curve

Elliptic-curve cryptography

Elliptic Curve DSA

Elliptic curve point multiplication

Elliptic curve primality

Elliptic curve primality

Elliptic cylinder

Elliptic cylindrical coordinates

Elliptic divisibility sequence

Elliptic Gauss sum

Elliptic geometry

Elliptic hypergeometric series

Elliptic integral

Elliptic operator

Elliptic partial differential equation

Elliptic pseudoprime

Elliptic rational functions

Elliptic surface

Elliptic transform

Elliptic unit

Elliptical distribution

Ellis drainhole

Ellis–Numakura lemma

Ellsberg paradox

Elo rating system

Elongated bicupola

Elongated bipyramid

Elongated cupola

Elongated dodecahedron

Elongated gyrobifastigium

Elongated hexagonal bipyramid

Elongated octahedron

Elongated pentagonal dipyramid

Elongated pentagonal gyrobicupola

Elongated pentagonal gyrobirotunda

Elongated pentagonal gyrocupolarotunda

Elongated pentagonal orthobicupola

Elongated pentagonal orthobirotunda

Elongated pentagonal orthocupolarotunda

Elongated triangular dipyramid

Elongated triangular gyrobicupola

Elongated triangular orthobicupola

Elongated triangular tiling

Elston–Stewart algorithm

ELSV formula

EM algorithm

Emden equation

Elvis operator

EM algorithm and GMM model

Embedded Zerotrees of Wavelet transforms

Embedding

Embedding problem

Embodied design

Embree–Trefethen constant

Emden–Chandrasekhar equation

Emergence

Emil Artin Junior Prize in Mathematics

Émile Picard Medal

Emirp

Emmy Noether bibliography

Empirical Bayes method

Empirical characteristic function

Empirical distribution function

Empirical evidence

Empirical measure

Empirical modelling

Empirical orthogonal functions

Empirical probability

Empirical process

Empirical statistical laws

Empty-boxes test

Empty domain

Empty product

Empty semigroup

Empty string

Empty sum

EMS Prize

Emulation theory of representation

En (Lie algebra)

En-ring

Encaustic tile

Encompassment ordering

Encryption

Encyclopedia of Mathematics

Encyclopedia of Special Functions

Encyclopedia of Statistical Sciences

Encyclopedia of Triangle Centers

Encyclopedic Dictionary of Mathematics

End (category theory)

End (graph theory)

End (topology)

End extension

Ending lamination theorem

Endogeneity (econometrics)

Endogeneity with an exponential regression function

Endomorphism semi-group

Endoscopic group

Energetic space

Energy distance

Energy drift

Energy flux

Energy minimization

Energy modeling

Energy operator

Energy principles in structural mechanics

Energy statistics

Engare

Engel algebra

Engel element

Engel expansion

Engel theorem

Enneper surface

Engel subalgebra

Engel's theorem

Engelbert–Schmidt zero–one law

Engineering and Physical Sciences Research Council

Engineering cybernetics

Engineering mathematics

Engineering notation

Engineering statistics

Engineering tolerance

English numerals

Enneacontagon

Enneacontahexagon

Enneadecagon

Enneadecahedron

Enneagonal antiprism

Enneagonal prism

Enneagram (disambiguation)

Enneagram (geometry)

Enneagrammic antiprism

Enneagrammic prism

Enneahedron

Enneper surface

ENO methods

Enriched category

Enriques–Kodaira classification

Enrolled actuary

Ensemble averaging

Ensemble axiom

Ensemble forecasting

Ensemble Kalman filter

Ensō

Entanglement (graph measure)

Entanglement-assisted stabilizer formalism

Entire function

Entitative graph

Entrainment (physics)

Entropic uncertainty

Entropic vector

Entropy

Entropy (ecology)

Entropy (information theory)

Entropy compression

Entropy estimation

Entropy influence conjecture

Entropy maximization

Entropy power inequality

Entropy rate

Entscheidungsproblem

Enumeration

Enumerations of specific permutation classes

Enumerative combinatorics

Enumerator polynomial

Envelope (category theory)

Envelope (mathematics)

Envelope theorem

Enveloping von Neumann algebra

Environmental modelling

Envy-free

Envy-free cake-cutting

Envy-free matching

Eodermdrome

Eötvös effect

EP matrix

Epi-convergence

Epic Circles (V)

Epicycloid

Epigraph (mathematics)

Epigroup

Epimenides paradox

Epimorphism

Epistemic logic

Epps effect

Epsilon calculus

Epsilon-induction

Epsilon numbers (mathematics)

EQP (complexity)

Equable shape

Equal parallelians point

Equaliser (mathematics)

Equality (mathematics)

Equally spaced polynomial

Equant

Equating coefficients

Equation

Equation-free modeling

Equation of motion

Equation of State Calculations by Fast Computing Machines

Equation solving

Equation xʸ = yˣ

Equational logic

Equations defining abelian varieties

Equatorial coordinate system

Equiangular lines

Equiangular polygon

Equianharmonic

Equiareal map (mathematics)

Equichordal point

Equichordal point problem

Equiconsistency

Equicontinuity

Equidiagonal quadrilateral

Equidimensional

Equidimensional scheme

Equidimensionality

Equidissection

Equidistant

Equidistant set

Equidistributed sequence

Equidistribution theorem

Equilateral dimension

Equilateral pentagon

Equilateral polygon

Equilibrium point

Equinumerosity

Equioscillation theorem

Equipollence (geometry)

Equipossibility

Equipotential

Equipotential surface

Equiprobability

Equisatisfiability

Equitable coloring

Equivalence (measure theory)

Equivalence class

Equivalence of categories

Equivalence of metrics

Equivalence relation

Equivalent definitions of mathematical structures

Equivalent latitude

Equivalent rectangular bandwidth

Equivalents of the Axiom of Choice

Equivariant algebraic K-theory

Equivariant bundle

Equivariant cohomology

Equivariant differential form

Equivariant index theorem

Equivariant K-theory

Equivariant L-function

Equivariant map

Equivariant sheaf

Equivariant stable homotopy theory

Equivariant topology

Erasure code

ERCIM Cor Baayen Award

Erdelyi–Kober operator

Erdős arcsine law

Erdős–Bacon number

Erdős–Borwein constant

Erdős cardinal

Erdős conjecture on arithmetic progressions

Erdelyi–Kober operator

Erdős–Diophantine graph

Erdős discrepancy problem

Erdős distinct distances problem

Erdős–Dushnik–Miller theorem

Erdős–Faber–Lovász conjecture

Erdős–Fuchs theorem

Erdős–Gallai theorem

Erdős–Graham problem

Erdős–Gyárfás conjecture

Erdős–Hajnal conjecture

Erdős–Kac theorem

Erdős–Ko–Rado theorem

Erdős Lectures

Erdős–Mordell inequality

Erdős–Moser equation

Erdős–Nagy theorem

Erdős number

Erdős on Graphs

Erdős–Pósa theorem

Erdős Prize

Erdős–Rado theorem

Erdős–Rényi model

Erdős space

Erdős–Stone theorem

Erdős–Straus conjecture

Erdős–Szekeres conjecture

Erdős–Szekeres theorem

Erdős–Szemerédi theorem

Erdős–Tenenbaum–Ford constant

Erdős–Tetali theorem

Erdős–Turán conjecture on additive bases

Erdős–Turán inequality

Erdős–Ulam problem

Ergebnisse der Mathematik und ihrer Grenzgebiete

Ergodic flow

Ergodic hypothesis

Ergodic process

Ergodic Ramsey theory

Ergodic theory

Ergodic Theory and Dynamical Systems

Ergodicity

Ergograph

Erlang distribution

Erosion (morphology)

Errera graph

Error analysis

Error analysis (mathematics)

Error bar

Error-correcting codes with feedback

Error correction model

Error detection and correction

Error function

Errors and residuals

Errors-in-variables models

Erwin Schrödinger International Institute for Mathematical Physics

Esakia duality

Esakia space

Escaping set

Esenin-Volpin's theorem

ESPACE

Esquisse d'un Programme

Essay d'analyse sur les jeux de hazard

Esscher transform

Essential dimension

Essential extension

Essential manifold

Essential monomorphism

Essential range

Essential singularity

Essential spectrum

Essential subgroup

Essential supremum and essential infimum

Essentially finite vector bundle

Essentially surjective functor

Essentially unique

Estevez–Mansfield–Clarkson equation

Estimation

Estimation lemma

Estimation of covariance matrices

Estimation of distribution algorithm

Estimation of signal parameters via rotational invariance techniques

Estimation statistics

Estimation theory

Estimator

Estrada index

Estrin's scheme

Eta function

Eta function (disambiguation)

Eta invariant

Étale algebra

Étale cohomology

Étale fundamental group

Étale group scheme

Étale homotopy type

Étale morphism

Étale spectrum

Étale topology

Étale topos

Etemadi's inequality

Etendue

Eternal dominating set

Eternity

Eternity puzzle

Ethereal cardinal

`

Ethnocomputing

Ethnomathematics

Ethnostatistics

Etruscan numerals

EU Social Progress Index

EU/ME, the metaheuristics community

Euclid and His Modern Rivals

Euclid–Euler theorem

Euclid's lemma

Euclid's Optics

Euclid's orchard

Euclid's theorem

Euclidean

Euclidean (disambiguation)

Euclidean algorithm

Euclidean distance

Euclidean distance matrix

Euclidean division

Euclidean domain

Euclidean field

Euclidean group

Euclidean minimum spanning tree

Euclidean plane isometry

Euclidean random matrix

Euclidean relation

Euclidean shortest path

Euclidean tilings by convex regular polygons

Euclidean topology

Euler angles

Euler Book Prize

Euler–Boole summation

Euler brick

Euler calculus

Euler characteristic

Euler characteristic of an orbifold

Euler class

Euler diagram

Euler equations

Euler equations (fluid dynamics)

Euler filter

Euler function

Euler integral

Euler integral (disambiguation)

Euler–Jacobi pseudoprime

Euler–Lagrange equation

Euler line

Euler–Lotka equation

Euler–Maruyama method

Euler measure

Euler method

Euler operator

Euler–Poisson–Darboux equation

Euler product

Euler pseudoprime

Euler–Rodrigues formula

Euler sequence

Euler Society

Euler spiral

Euler substitution

Euler summation

Euler system

Euler tour technique

Euler–Tricomi equation

Euler's conjecture

Euler's conjecture (disambiguation)

Euler's continued fraction formula

Euler's criterion

Euler's differential equation

Euler's Disk

Euler's equations

Euler's factorization method

Euler's formula

Euler's four-square identity

Euler's Gem

Euler's identity

Euler's pump and turbine equation

Euler's quadrilateral theorem

Euler's rotation theorem

Euler's sum of powers conjecture

Euler's theorem

Euler's theorem (differential geometry)

Euler's theorem in geometry

Euler's totient function

Eulerian coherent structure

Eulerian matroid

Eulerian number

Eulerian path

Eulerian poset

EURO Gold Medal

Eurocomb

European Chapter on Combinatorial Optimization

European Congress of Mathematics

European Girls' Mathematical Olympiad

European Institute for Statistics, Probability, Stochastic Operations Research and its Applications

European Journal of Combinatorics

European Journal of Operational Research

European Mathematical Society

European Prize in Combinatorics

European Society for Fuzzy Logic and Technology

European Society for Mathematics and the Arts

European Study Groups with Industry

European Summer School in Logic, Language and Information

European Women in Mathematics

Eutactic

Eutactic lattice

Eutactic star

Evacuation process simulation

Evdokimov's algorithm

Evectant

Even and odd functions

Even and odd ordinals

Even circuit theorem

Even code

Even-hole-free graph

Even-odd rule

Evenly spaced integer topology

Event (probability theory)

Event calculus

Event generator

Event sampling methodology

Event structure

Event symmetry

Eventually (mathematics)

Everyday Mathematics

Everything and More (book)

Evidence lower bound

Evidence under Bayes' theorem

Evidential decision theory

Evil number

Evolute

Evolution and the Theory of Games

Evolution strategy

Evolutionarily stable set

Evolutionarily stable state

Evolutionary algorithm

Evolutionary game theory

Evolutionary graph theory

Evolutionary invasion analysis

Evolutionary multi-modal optimization

Evolutionary multimodal optimization

Evolutionary programming

Ewald summation

Ewens's sampling formula

Ex-Prodigy

Ex-tangential quadrilateral

Exact algorithm

Exact C*-algebra

Exact category

Exact coloring

Exact completion

Exact couple

Exact differential

Exact differential equation

Exact functor

Exact sequence

Exact test

Exactly solvable model

Exactness

Exaggeration

Exalcomm

Examples of differential equations

Examples of generating functions

Examples of groups

Examples of Markov chains

Examples of vector spaces

Excavated dodecahedron

Excellent ring

Exceptional divisor

Exceptional inverse image functor

Exceptional isomorphism

Exceptional Lie algebra

Excess-1023

Excess-1024

Excess-11

Excess-123

Excess-127

Excess-128

Excess-129

Excess-15

Excess-16383

Excess-16384

Excess-2048

Excess-25

Excess-250

Excess-256

Excess-3

Excess-3 Gray code

Excess-32

Excess-500

Excess-512

Excess-6

Excess-64

Excess-976

Excess risk

Excess-weighted code

Exchange matrix

Exchange paradox

Exchangeable random variables

Excision theorem

Excisive triad

Excitable medium

Excluded point topology

Exclusive

Exclusive (disambiguation)

Exclusive or

Excursion probability

Exercise (mathematics)

Exeter point

Exhaustion by compact sets

Existential generalization

Existential graph

Existential instantiation

Existential quantification

Existential theory of the reals

Existentially closed model

Exner equation

Exotic affine space

Exotic probability

Exotic R4

Exotic sphere

Exp algebra

Expanded cuboctahedron

Expanded icosidodecahedron

Expander code

Expander graph

Expander mixing lemma

Expander walk sampling

Expansion (geometry)

Expansive homeomorphism

Expectation–maximization algorithm

Expectation propagation

Expected mean squares

Expected return

Expected shortfall

Expected utility hypothesis

Expected value

Expected value of perfect information

Expenditure minimization problem

Experience sampling method

Experiment (probability theory)

Experimental mathematics

Experimental Mathematics (journal)

Experimental uncertainty analysis

Expi

Explained sum of squares

Explained variance

Explained variation

Explicit algebraic stress model

Explicit and implicit methods

Explicit formula

Explicit formulae for L-functions

Explicit reciprocity law

Explicit substitution

Exploratory data analysis

Exploratory factor analysis

ExploreLearning

Exponential

Exponential (disambiguation)

Exponential decay

Exponential dichotomy

Exponential dispersion model

Exponential distribution

Exponential family

Exponential field

Exponential formula

Exponential-Golomb coding

Exponential growth

Exponential hierarchy

Exponential integrator

Exponential-logarithmic distribution

Exponential map

Exponential map (discrete dynamical systems)

Exponential map (Lie theory)

Exponential map (Riemannian geometry)

Exponential mechanism (differential privacy)

Exponential minus 1

Exponential object

Exponential polynomial

Exponential response formula

Exponential sheaf sequence

Exponential smoothing

Exponential stability

Exponential tilting

Exponential time hypothesis

Exponential type

Exponentially equivalent measures

Exponentially modified Gaussian distribution

Exponentiated Weibull distribution

Exponentiation

Exponentiation by squaring

Exportation (logic)

Exposed point

Expositiones Mathematicae

Expression (mathematics)

EXPSPACE

EXPTIME

Exsecant

Exsphere (polyhedra)

Exsymmedian

Ext functor

Extended discrete element method

Extended Euclidean algorithm

Extended finite element method

Extended Kalman filter

Extended Mathematical Programming

Extended negative binomial distribution

Extended newsvendor model

Extended real number line

Extended side

Extender (set theory)

Extendible cardinal

Extension (disambiguation)

Extension (predicate logic)

Extension (semantics)

Extension by definitions

Extension by new constant and function names

Extension of a polyhedron

Extension of a topological group

Extension topology

Extensionality

Extensions of First Order Logic

Extensions of Fisher's method

Extensions of symmetric operators

Extensive category

Exterior (topology)

Exterior angle theorem

Exterior calculus identities

Exterior covariant derivative

Exterior dimension

Exterior space

External (mathematics)

External memory graph traversal

External ray

External validity

Extinction probability

Extouch triangle

Extra dimensions

Extra special group

Extractor (mathematics)

Extranatural transformation

Extraneous and missing solutions

Extrapolation

Extrapolation domain analysis

Extremal combinatorics

Extremal Ensemble Learning

Extremal graph theory

Extremal length

Extremal optimization

Extremal orders of an arithmetic function

Extremal Problems For Finite Sets

Extremally disconnected space

Extreme Loading for Structures

Extreme physical information

Extreme point

Extreme point (disambiguation)

Extreme risk

Extreme value theorem

Extreme value theory

Eye

Eye of Horus

Eye of Providence