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PlanetMath Encyclopedia

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2 - 17 entries

3 - 7 entries

4 - 5 entries

5 - 2 entries

6 - 2 entries

9 - 2 entries

A - 835 entries

B - 538 entries

C - 1569 entries

D - 718 entries

E - 690 entries

F - 637 entries

G - 532 entries

H - 517 entries

I - 685 entries

J - 100 entries

K - 169 entries

L - 727 entries

M - 677 entries

N - 436 entries

O - 332 entries

P - 1110 entries

Q - 196 entries

R - 725 entries

S - 1330 entries

T - 669 entries

U - 291 entries

$\mathcal{U}$ -category (in $\mathcal{U}$ -small) owned by Cam McLeman, Andrew Archibald

$\mathcal{U}$ -small owned by Cam McLeman, Andrew Archibald

ucp convergence (in ucp convergence of processes) owned by George Lowther

ucp convergence of processes owned by George Lowther

ucp topology (in ucp convergence of processes) owned by George Lowther

UFD owned by Pedro Sanchez, Raymond Puzio, J. Pahikkala

UFD (in UFD) owned by Pedro Sanchez, Raymond Puzio, J. Pahikkala

UFD's are integrally closed owned by Roger Lipsett, Chi Woo

UHP (in upper half plane) owned by Brian Birgen,

Ulam cloth (=Ulam spiral) owned by John Smith

Ulam number owned by John Smith

Ulam sequence (in Ulam number) owned by John Smith

Ulam spiral (=Ulam spiral) owned by John Smith

Ulam spiral owned by John Smith

Ulam's Problem (=Collatz problem) owned by Aaron Krowne

Ulam-type sequence (in Ulam number) owned by John Smith

Ulrich module owned by yshen

ultrabarreled space (=barrel) owned by Chi Woo

ultrabarrelled (=barrel) owned by Chi Woo

ultrabarrelled space (in barrel) owned by Chi Woo

ultra-complex systems owned by bci1

ultraconnected (in ultraconnected space) owned by yark

ultra-connected (in ultraconnected space) owned by yark

ultra-connected space (=ultraconnected space) owned by yark

ultraconnected space owned by yark

Ultrafactorial owned by Kausthub

ultrafilter (in lattice filter) owned by Chi Woo

ultra-filter (=lattice filter) owned by Chi Woo

ultra filter (=lattice filter) owned by Chi Woo

ultrafilter owned by yark, Matt Piatkus

ultrametric owned by Koro, Bayle Shanks, mathwizard, Thomas Foregger, J. Pahikkala, Warren Buck

ultrametric field (in complete ultrametric field) owned by J. Pahikkala

ultrametric space owned by J. Pahikkala

ultrametric triangle inequality owned by J. Pahikkala

ultranet owned by Rui Palma, Matt Piatkus, Chi Woo

ultraparallel (in parallel lines in hyperbolic geometry) owned by Warren Buck

ultraparallel lines (in parallel lines in hyperbolic geometry) owned by Warren Buck

ultraproduct (=reduced direct product) owned by Chi Woo

ultra-strong operator topology (in operator topologies) owned by Rui Palma, Chi Woo

ultra-strong-* operator topology (in operator topologies) owned by Rui Palma, Chi Woo

ultra-weak operator topology (in operator topologies) owned by Rui Palma, Chi Woo

UMVU (=mean square error) owned by Chi Woo, Aaron Krowne

UMVUE (=mean square error) owned by Chi Woo, Aaron Krowne

unambiguity of factorial base representation owned by Raymond Puzio

unambiguous (in ambiguous grammar) owned by Chi Woo

unambiguous numeration system (in numeration system) owned by Chi Woo

unary (in arity) owned by Henry,

unary function (in ETAC) owned by bci1

unary relation (in property) owned by Pedro Sanchez, Joe Corneli, Luke Palmer, Boris Bukh, J. Pahikkala, Marijke van Gans, Chi Woo

unary relation (in relation) owned by Chi Woo, Logan Hanks, yark

unary symbol (in ETAC) owned by bci1

unbased suspension (in suspension) owned by Antonio

unbiased estimator (in bias) owned by Chi Woo

unbounded (in club) owned by Henry

unbounded (in classes of ordinals and enumerating functions) owned by Cam McLeman, Henry, yark

unbounded class (in classes of ordinals and enumerating functions) owned by Cam McLeman, Henry, yark

unbounded function (in bounded function) owned by Koro, matte

unbounded linear map (in operator norm) owned by Rui Palma, Igor Khavkine, Chi Woo

unbounded minimization (=recursive function) owned by Raymond Puzio, yark, Thomas Foregger, Chi Woo

unbounded operator (in operator norm) owned by Rui Palma, Igor Khavkine, Chi Woo

unbounded set (in club) owned by Henry

example of unbounded variation (=function of not bounded variation) owned by J. Pahikkala

uncertainty principle owned by J. Pahikkala

uncertainty theorem owned by dh2718, Chi Woo

unconditional convergence owned by kompik, , Chi Woo, yark

unconditionally convergent (=unconditional convergence) owned by kompik, , Chi Woo, yark

uncountable owned by yark, Kevin Ferguson, matte

uncountable cover (in cover) owned by Michael Slone, Matt Piatkus, matte, Chi Woo, yark, bci1

example of uncountable family of subsets of a countable set with finite intersections owned by Rafael Szefler

uncountable Polish spaces contain Cantor space owned by George Lowther

uncountable set (=uncountable) owned by yark, Kevin Ferguson, matte

uncountable sums of positive numbers owned by Raymond Puzio

uncurried function (in currying) owned by Michael Slone, Logan Hanks

undecahedron owned by evin290

underdetermined (=under determined) owned by Aaron Krowne

under-determined (=under determined) owned by Aaron Krowne

under determined owned by Aaron Krowne

example of under-determined polynomial interpolation owned by Robert Milson

underlying functor (in concrete category) owned by kompik, Michael Slone, Chi Woo, bci1,

underlying graph of a quiver owned by Rafael Szefler

Understanding the Zero-State Response owned by Swapnil Sunil Jain

unicity conjecture for Markov numbers (=uniqueness conjecture for Markov numbers) owned by John Smith

uniform absolute continuity (=uniformly integrable) owned by Steve Cheng, Thomas Foregger, Chi Woo, noegenesis, George Lowther

Uniform Algebra owned by Karsten Bohlen

uniform base owned by Cam McLeman

Uniform Boundedness Principle (=Banach-Steinhaus theorem) owned by Koro

uniform continuity owned by Chi Woo, J. Pahikkala

uniform continuity of Lipschitz functions owned by paolini

uniform continuity over locally compact quantum groupoids owned by bci1,

uniform continuity over topological groupoids (in uniform continuity over locally compact quantum groupoids) owned by bci1,

uniform continuity over topological groups associated with Hopf algebras (=locally compact quantum groups: uniform continuity) owned by bci1

uniform (continuous) random variable owned by Cam McLeman, Jose Alberto Bonilla Vera

uniform convergence owned by Koro

uniform convergence of integral owned by J. Pahikkala

uniform convergence of series (in sum function of series) owned by J. Pahikkala

uniform convergence on union interval owned by J. Pahikkala

uniform dimension owned by Michael Clase

uniform (discrete) random variable owned by Jose Alberto Bonilla Vera

uniform distribution (=uniform (continuous) random variable) owned by Cam McLeman, Jose Alberto Bonilla Vera

uniform expansivity owned by Koro

uniform hypergraph (in hypergraph) owned by L. H., Wilfredo Lopez, Marijke van Gans, Chi Woo, NeuRet, Pedro Sanchez

uniform integrability (=uniformly integrable) owned by Steve Cheng, Thomas Foregger, Chi Woo, noegenesis, George Lowther

uniform-integrability convergence theorem (=Vitali convergence theorem) owned by Steve Cheng

uniformities on a set form a complete lattice owned by Michael Slone

uniformity (in uniform space) owned by Michael Slone, Paolo, Chi Woo

uniformity generated by (in fundamental system of entourages) owned by Michael Slone

uniformizable (in uniformizable space) owned by Chi Woo

uniformizable space owned by Chi Woo

uniformization theorem owned by Simone

proof of the uniformization theorem owned by Simone, Andrea Ambrosio

uniformizer (in discrete valuation ring) owned by David Jao, Jeff Garrett

uniformizing element (in discrete valuation ring) owned by David Jao, Jeff Garrett

uniformly continuous owned by Paolo

uniformly continuous (in uniform continuity) owned by Chi Woo, J. Pahikkala

uniformly continuous function (in uniformly continuous) owned by Paolo

uniformly continuous functionals on the Fourier algebra (in locally compact quantum groups: uniform continuity) owned by bci1

uniformly continuous is proximity continuous owned by Victor Porton

proof that uniformly continuous is proximity continuous owned by Chi Woo

uniformly continuous on $\mathbb{R}$ is roughly linear owned by Thomas Foregger, snoringcat

uniformly convergent (in uniform convergence) owned by Koro

uniformly converging integral (in uniform convergence of integral) owned by J. Pahikkala

uniformly convex (=uniformly convex space) owned by georgiosl

uniformly convex Banach space is reflexive owned by georgiosl

uniformly convex space owned by georgiosl

uniformly distributed owned by Boris Bukh

uniformly equicontinuous owned by Koro

uniformly hyperbolic (=hyperbolic set) owned by Koro

uniformly integrable owned by Steve Cheng, Thomas Foregger, Chi Woo, noegenesis, George Lowther

uniformly locally finite graph owned by Stephen Maguire

uniformly minimum variance unbiased (=mean square error) owned by Chi Woo, Aaron Krowne

uniform module owned by anti zeus

uniform neighborhood owned by Chi Woo

uniform norm (in bounded function) owned by Koro, matte

uniform proximity (in proximity generated by uniformity) owned by Victor Porton

uniform proximity is a proximity owned by Chi Woo

uniform random variable (=uniform (discrete) random variable) owned by Jose Alberto Bonilla Vera

uniform random variable (=uniform (continuous) random variable) owned by Cam McLeman, Jose Alberto Bonilla Vera

uniform space owned by Michael Slone, Paolo, Chi Woo

uniform structure (in uniform space) owned by Michael Slone, Paolo, Chi Woo

uniform structure of a metric space owned by Paolo

uniform structure of a topological group owned by Michael Slone, Paolo, yark

uniform submodule (in uniform module) owned by anti zeus

uniform substitution (=substitutions in logic) owned by Chi Woo

uniform topology (in topology induced by uniform structure) owned by Thomas Foregger, Paolo

uniform ultrafilter (in ultrafilter) owned by yark, Matt Piatkus

unimodular owned by Dr. W. H. Mannan

unimodular column (in unimodular matrix) owned by Chi Woo

unimodular group (in unimodular matrix) owned by Chi Woo

unimodular group owned by Thomas Foregger

unimodular lattice owned by monster

unimodular linear transformation (in unimodular matrix) owned by Chi Woo

unimodular matrix owned by Chi Woo

unimodular row (in unimodular matrix) owned by Chi Woo

unimodular vector (in unimodular matrix) owned by Chi Woo

uni-molecular chemical reaction (in category of molecular sets) owned by bci1

union owned by Roger Lipsett, imran, Cosmin Davidescu

union (in partial ordering on subobjects of an object) owned by Chi Woo

union (=axiom of union) owned by Sabean

union bound (in Bonferroni inequalities) owned by Kenneth Shum

the union of a locally finite collection of closed sets is closed owned by yark

union of automata (in Boolean operations on automata) owned by Chi Woo

union of countable sets owned by Chi Woo

union of non-disjoint connected sets is connected owned by matte

union of subobjects (in partial ordering on subobjects of an object) owned by Chi Woo

unique colimit of a sequence of cellular inclusions of $CW$

-complexes (in approximation theorem for an arbitrary space) owned by bci1

unique factorization (in UFD) owned by Pedro Sanchez, Raymond Puzio, J. Pahikkala

unique factorization and ideals in ring of integers owned by J. Pahikkala

unique factorization domain (=UFD) owned by Pedro Sanchez, Raymond Puzio, J. Pahikkala

uniquely complemented (in uniquely complemented lattice) owned by Chi Woo

uniquely complemented lattice owned by Chi Woo

uniquely orthocomplemented (=orthocomplemented lattice) owned by Chi Woo

uniquely orthocomplemented lattice (in orthocomplemented lattice) owned by Chi Woo

uniqueness conjecture for Markov numbers owned by John Smith

uniqueness of additive identity in a ring owned by alozano

uniqueness of additive inverse in a ring owned by alozano

uniqueness of cardinality owned by Cam McLeman, Keenan Kidwell, Chi Woo

proof of uniqueness of center of a circle owned by Chi Woo, Thomas Foregger, Warren Buck, J. Pahikkala

uniqueness of decimal representation (=uniqueness of digital representation) owned by J. Pahikkala

uniqueness of digital representation owned by J. Pahikkala

examples of uniqueness of digital representation of small numbers in a few bases owned by John Smith

uniqueness of division algorithm in Euclidean domain owned by J. Pahikkala

uniqueness of Fourier expansion owned by J. Pahikkala

uniqueness of Fourier series (=uniqueness of Fourier expansion) owned by J. Pahikkala

uniqueness of identity element (=identity element is unique) owned by J. Pahikkala, Roger Lipsett

uniqueness of inverse (for groups) owned by Will Jennings, matte

proof of uniqueness of Lagrange Interpolation formula owned by Raymond Puzio, Gunnar, Michael Slone

uniqueness of Laurent expansion owned by J. Pahikkala

uniqueness of limit of sequence owned by J. Pahikkala

uniqueness of measures extended from a $\pi$ -system owned by George Lowther

uniqueness of Moebius function owned by Cam McLeman

unique readability (in unique readability of well-formed formulas) owned by Chi Woo

unique readability of parenthesized formulas owned by Chi Woo

unique readability of well-formed formulas owned by Chi Woo

unit (in ring) owned by David Jao, Andrew Archibald

unit owned by Pedro Sanchez, J. Pahikkala

unit (in unit of adjunction) owned by Chi Woo

unital (=unit) owned by Pedro Sanchez, J. Pahikkala

unital (in ring homomorphism) owned by David Jao

unital module (=module) owned by yark, anti zeus

unital path algebras owned by Rafael Szefler

unital ring (in ring) owned by David Jao, Andrew Archibald

unitarily diagonalizable (in diagonalizable operator) owned by Rui Palma

unitarily equivalent (in Banach *-algebra representation) owned by Rui Palma, bci1

unitarity preserving mappings (in algebraic category of quantum automata) owned by bci1

unitary (in McAlister covering theorem) owned by Cam McLeman, Graham Oliver

unitary owned by Rui Palma, Yann Lamontagne, Pedro Sanchez, Robert Milson, Raymond Puzio

unitary algebra (in (special) unitary Lie algebra) owned by pan

unitary algebra (=(special) unitary Lie algebra) owned by pan

unitary divisor owned by L. H.

unitary element (in partial isometry) owned by Chi Woo

unitary element (in involutory ring) owned by Chi Woo, Thomas Foregger

unitary group (in unitary) owned by Rui Palma, Yann Lamontagne, Pedro Sanchez, Robert Milson, Raymond Puzio

unitary group of a complex Hilbert space (in irreducible unitary representations of compact groups are finite-dimensional) owned by Rui Palma, bci1

unitary matrix (in unitary) owned by Rui Palma, Yann Lamontagne, Pedro Sanchez, Robert Milson, Raymond Puzio

unitary operator (in unitary) owned by Rui Palma, Yann Lamontagne, Pedro Sanchez, Robert Milson, Raymond Puzio

unitary perfect number owned by L. H., John Smith

unitary representation owned by Thomas Foregger

unitary representation of a compact group has a finite-dimensional subrepresentation (=irreducible unitary representations of compact groups are finite-dimensional) owned by Rui Palma, bci1

unitary representation of compact group has an irreducible subrepresentation (in irreducible unitary representations of compact groups are finite-dimensional) owned by Rui Palma, bci1

unitary ring (in ring) owned by David Jao, Andrew Archibald

unitary space (in unitary) owned by Rui Palma, Yann Lamontagne, Pedro Sanchez, Robert Milson, Raymond Puzio

unitary transformation (in unitary) owned by Rui Palma, Yann Lamontagne, Pedro Sanchez, Robert Milson, Raymond Puzio

unit ball (=unit disc) owned by John Smith, Pedro Sanchez, Raymond Puzio

unit ball (=standard n-ball) owned by Thomas Foregger

unit circle (in unit disk) owned by Brian Birgen,

unit circle (in circle) owned by John Smith, matte, Boris Bukh, L. H., Anthony Morris, James Knodel

unit circle (in Omega-spectrum) owned by bci1

unit coherence (in monoidal category) owned by Juan M. Marquez B., Chi Woo

unit disc (=unit disk) owned by Brian Birgen,

unit disc owned by John Smith, Pedro Sanchez, Raymond Puzio

unit disk owned by Brian Birgen,

unit disk upper half plane conformal equivalence theorem owned by Chi Woo, Brian Birgen

unit divisor (in divisor theory) owned by J. Pahikkala

unit dyad (in dyad product) owned by J. Pahikkala

United States (=history of mathematics in the United States of America) owned by John Smith, Warren Buck, bci1

United States of America (=history of mathematics in the United States of America) owned by John Smith, Warren Buck, bci1

United States of America Mathematical Olympiad owned by John Smith

unit fraction owned by Jani Melik

unit fractions (in Hibeh Papyrus) owned by Milo Gardner

unit fraction series (=Egyptian fraction) owned by Milo Gardner,

unit group (=group of units) owned by J. Pahikkala

unit hyperbola owned by J. Pahikkala, Pedro Sanchez

unit ideal (in fractional ideal of commutative ring) owned by J. Pahikkala

unities of ring and subring owned by J. Pahikkala

unitization owned by Raymond Puzio

unit left triangular matrix (=unit triangular matrix) owned by Yann Lamontagne

unit lower triangular matrix (in unit triangular matrix) owned by Yann Lamontagne

unit n-ball (=standard n-ball) owned by Thomas Foregger

unit normal (in Frenet frame) owned by Robert Milson, Ronald Lett

unit normal loss function owned by georgiosl

unit object (in monoidal category) owned by Juan M. Marquez B., Chi Woo

unit of adjunction owned by Chi Woo

unit right triangular matrix (=unit triangular matrix) owned by Yann Lamontagne

units of quadratic fields owned by J. Pahikkala

units of real cubic fields with exactly one real embedding owned by Warren Buck

unit space (in topological groupoid) owned by HkBst, Chi Woo, Ronnie Brown

unit sphere (in sphere) owned by Aaron Krowne, NeuRet, Warren Buck

unit tangent (in Frenet frame) owned by Robert Milson, Ronald Lett

unit triangular matrix owned by Yann Lamontagne

unit upper triangular matrix (in unit triangular matrix) owned by Yann Lamontagne

unit vector owned by Robert Milson, Ronald Lett

Unit Vectors in Curvilinear Coordinates owned by Swapnil Sunil Jain

derivation of unit vectors in curvilinear coordinates owned by Swapnil Sunil Jain

unity owned by J. Pahikkala

unity of subring owned by J. Pahikkala

unity plus nilpotent is unit owned by Warren Buck, J. Pahikkala

univalent (=univalent analytic function) owned by Jiri Lebl

univalent analytic function owned by Jiri Lebl

univalent function (=univalent analytic function) owned by Jiri Lebl

univariate regression model (=regression model) owned by Chi Woo, Thomas Foregger

universal (=universal relation) owned by Henry,

universal (=universal mapping property) owned by Michael McCliment, Robert Milson, Chi Woo, Algeboy, Ben Loftin

universal (in universal structure) owned by Tim Mellor

universal algebra (=algebraic system) owned by Chi Woo, Raymond Puzio, J. Pahikkala, yark

universal algebra (in topic entry on the algebraic foundations of mathematics) owned by bci1

universal arrow (in universal mapping property) owned by Michael McCliment, Robert Milson, Chi Woo, Algeboy, Ben Loftin

universal assumption owned by Warren Buck

universal bundle owned by Michael Slone, Christopher Lee, bwebste, yark

universal closure (in sentence) owned by Henry, Chi Woo

universal coefficient theorem owned by Michael Slone, Andrei Prokopiw

universal completion (in universally measurable) owned by George Lowther

universal cover (=universal covering space) owned by bwebste, Jeff Garrett

universal covering space owned by bwebste, Jeff Garrett

universal derivation owned by Peter Bruin

universal enveloping algebra owned by draisma

universal family of spaces (=some examples of universal bundles) owned by bwebste, mhale, Dr_Absentius, Axel Boldt, bci1

universal function (in universal relation) owned by Henry,

universal generalization (=axiom system for first order logic) owned by Chi Woo

universal hyperboloc substitution (in integration of rational function of sine and cosine) owned by J. Pahikkala, Warren Buck, Pedro A. Fernandez

universal hypothesis (=universal assumption) owned by Warren Buck

universality (in universal mapping property) owned by Michael McCliment, Robert Milson, Chi Woo, Algeboy, Ben Loftin

universally complete (in universally measurable) owned by George Lowther

universally measurable owned by George Lowther

universal mapping property owned by Michael McCliment, Robert Milson, Chi Woo, Algeboy, Ben Loftin

universal morphism (in universal mapping property) owned by Michael McCliment, Robert Milson, Chi Woo, Algeboy, Ben Loftin

universal net (=ultranet) owned by Rui Palma, Matt Piatkus, Chi Woo

universal nets in compact spaces are convergent owned by Rui Palma

universal property (in universal mapping property) owned by Michael McCliment, Robert Milson, Chi Woo, Algeboy, Ben Loftin

universal quantifier (in quantifier) owned by Chi Woo, Henry

universal quantifier operator (in monadic algebra) owned by Chi Woo

universal relation owned by Henry,

universal relations exist for each level of the arithmetical hierarchy owned by Henry

universal structure owned by Tim Mellor

example of a universal structure owned by uzeromay, Tim Mellor, yark

universal trigonometric substitution (=integration of rational function of sine and cosine) owned by J. Pahikkala, Warren Buck, Pedro A. Fernandez

universal trigonometric substitution (in Weierstrass substitution formulas) owned by Warren Buck

universal Turing machine owned by tromp

universal Turing machines (=artificial intelligence) owned by aplant, pengbo, yark, Thomas Foregger, dankomed, bci1

universe owned by Andrew Archibald, Jeff Garrett

universe (=universe of discourse) owned by Jon Awbrey

example of universe owned by Raymond Puzio, Andrew Archibald

universe of discourse owned by Jon Awbrey

example of universe of finite sets owned by Raymond Puzio

unknot owned by Benjamin

unlimited register machine owned by Chi Woo

examples of unlimited register machines owned by Chi Woo

unordered partition (=integer partition) owned by Roger Lipsett, Boris Bukh

unramified (=ramification index) owned by David Jao, Stephen Forrest

unramified action owned by alozano

unramified extensions and class number divisibility owned by alozano

unramified outside a set of primes (in Hermite's theorem) owned by alozano

unreduced suspension (in suspension) owned by Antonio

unrestricted direct product (in direct products of groups) owned by yark

unrestricted direct product of groups (in direct products of groups) owned by yark

unrestricted grammar (=Chomsky hierarchy) owned by Chi Woo, Wilfredo Lopez

unrestricted grammar (=formal grammar) owned by Chi Woo, Wilfredo Lopez

unstable (in equilibrium point) owned by Yann Lamontagne, Julien Arino

unstable (in stable marriage problem) owned by Michael Slone

unstable (in transfer function) owned by Lachlan Andrew,

unstable cycle (in cycle) owned by Yann Lamontagne

unstable fixed point owned by mathwizard, Benjamin Armbruster, cgibbard

unstable limit cycle (in limit cycle) owned by Yann Lamontagne

unstable manifold (=stable manifold) owned by Koro

unstable periodic solution (=cycle) owned by Yann Lamontagne

unstable set (=stable manifold) owned by Koro

unstable sorting algorithm (in stable sorting algorithm) owned by Cam McLeman, Logan Hanks, Michael Slone

untouchable number owned by John Smith, Anthony Morris

unusual examples of limits and composte functions owned by anil pedgaonkar

unusual number owned by John Smith

up arrow (=Knuth's up arrow notation) owned by Henry

up-arrow (=Knuth's up arrow notation) owned by Henry

up arrow notation (=Knuth's up arrow notation) owned by Henry

up-arrow notation (=Knuth's up arrow notation) owned by Henry

upcrossing (in upcrossings and downcrossings) owned by George Lowther

upcrossings and downcrossings owned by George Lowther

upper adjoint (in Galois connection) owned by Chi Woo, Michael Slone

upper and lower bounds to binomial coefficient owned by Raymond Puzio, Christos Gkantsidis

proof of upper and lower bounds to binomial coefficient owned by Raymond Puzio, Thomas Heye

upper asymptotic density (in asymptotic density) owned by Cam McLeman, Stephen Forrest

upper bound owned by David Jao, Robert Milson

upper bound on $\vartheta(n)$ owned by Michael Slone

upper central series (in nilpotent group) owned by David Jao

upper central series (in solvable Lie algebra) owned by David Jao

upper closed (in upper set) owned by Chi Woo

upper closure (=upper set) owned by Chi Woo

upper density (=asymptotic density) owned by Cam McLeman, Stephen Forrest

upper half plane owned by Brian Birgen,

upper half plane model (=Poincaré upper half plane model) owned by Warren Buck

upper Hessenberg (=Hessenberg matrix) owned by Aaron Krowne

upper Hessenberg matrix (=Hessenberg matrix) owned by Aaron Krowne

upper limit (in definite integral) owned by mathwizard, xriso

upper logarithmic density (in logarithmic density) owned by kompik,

upper nilradical owned by Chi Woo

upper quartile (in percentile) owned by Chi Woo, Warren Buck, Thomas Foregger

upper Riemann sum (in Riemann sum) owned by Warren Buck, Kevin Ferguson, Cam McLeman

upper semiclosed (in ordered space) owned by Chi Woo

upper semi-continuous (in semicontinuous) owned by bwebste, Joe Corneli, matte, yark, via_strass, adrianita

upper semicontinuous (in semicontinuous) owned by bwebste, Joe Corneli, matte, yark, via_strass, adrianita

upper semilattice (in semilattice) owned by Michael Clase

upper semilattice (in join) owned by yark, greg

upper semimodular lattice (=semimodular lattice) owned by Michael Slone, lars_h

upper set owned by Chi Woo

upper set operation is a closure operator owned by Raymond Puzio

upper topology (in ordered space) owned by Chi Woo

upper triangular (in triangular matrix) owned by Warren Buck, Aaron Krowne

upper triangular matrix (in triangular matrix) owned by Warren Buck, Aaron Krowne

up set (=upper set) owned by Chi Woo

upward directed set (=directed set) owned by yark, Matt Piatkus

upward-directed set (=directed set) owned by yark, Matt Piatkus

upward Lowenheim-Skolem theorem owned by Matt Piatkus

urelement (in terms from foreign languages used in mathematics (html version)) owned by Warren Buck, silverfish, Algeboy, J. Pahikkala, Pedro A. Fernandez, yark

ur-element (in terms from foreign languages used in mathematics (html version)) owned by Warren Buck, silverfish, Algeboy, J. Pahikkala, Pedro A. Fernandez, yark

URM (=unlimited register machine) owned by Chi Woo

URM-computable (=URM computable) owned by Chi Woo

URM computable owned by Chi Woo

Urysohn extension theorem owned by Chi Woo, Roger Lipsett

Urysohn function (in Urysohn's lemma) owned by yark, Matt Piatkus

Urysohn metrization theorem owned by Matt Piatkus

Urysohn's lemma owned by yark, Matt Piatkus

proof of Urysohn's lemma owned by Santiago Canez

Urysohn space (=completely Hausdorff) owned by John Smith, Pedro Sanchez, Raymond Puzio, matte, Michael Slone, L. H.

useful (in simplified automaton) owned by Chi Woo

example of use of Taylor's theorem owned by alozano

example of using Cardano's formulas (=example of solving a cubic equation) owned by J. Pahikkala

examples using comparison test without limit owned by J. Pahikkala

using convolution to find Laplace transform owned by J. Pahikkala

example of using Eisenstein criterion owned by J. Pahikkala

example of using Lagrange multipliers owned by J. Pahikkala

using Lagrange multipliers to find semi-axes (=example needing two Lagrange multipliers) owned by J. Pahikkala

using Laplace transform to solve heat equation owned by J. Pahikkala

using Laplace transform to solve initial value problems owned by J. Pahikkala

using Laplace transform to solve partial differential equation (=using Laplace transform to solve heat equation) owned by J. Pahikkala

using Minkowski's constant to find a class number owned by alozano

example of a proof using nets owned by yark

using primitive roots and index to solve congruences owned by alozano

example of using residue theorem owned by J. Pahikkala

using residue theorem near branch point owned by J. Pahikkala

example using Stolz-Cesaro theorem owned by georgiosl

using the primitive element of biquadratic field owned by J. Pahikkala

usual conditions (in filtered probability space) owned by George Lowther

usual hypotheses (in filtered probability space) owned by George Lowther

usual topology (=Euclidean distance) owned by Pedro Sanchez, Robert Milson, Michael Slone

utility (in utility) owned by Henry

utility owned by Henry

utility function (in game) owned by Henry

utility function (in utility) owned by Henry

utilizing limit of $\frac{\sin{x}}{x}$ in 0 (=limit examples) owned by J. Pahikkala

UTM (in supercomputers) owned by bci1

V - 206 entries

W - 227 entries

X - 8 entries

Y - 18 entries

Z - 79 entries

9193 published entries total.
16100 published concepts total.

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