Wikipedia articles in scope, U
378 articles. Each title links to the article on Wikipedia. Refer to Wikipedia scope for the signals and the rules.
| Article | Signals | Class | Rule |
| U-chart | S1,S2 | Start | strong |
| U-invariant | S1,S6 | Start | strong |
| U-Prove | S2,S6 | Stub | strong |
| U-quadratic distribution | S1,S2,S5 | Start | strong |
| U-rank | S6 | | S6 near |
| U-statistic | S2,S4,S5,S6,S8,S9 | C | strong |
| U. K. Anandavardhanan | S1,S9 | Stub | strong |
| U. Narayan Bhat | S1,S8 | Stub | strong |
| Ubiratan D'Ambrosio | S1,S9 | Start | strong |
| UCL Faculty of Mathematical and Physical Sciences | S1,S3,S6,S9 | Start | strong |
| UCPH Department of Mathematical Sciences | S1,S6 | Start | strong |
| UCT Mathematics Competition | S1,S8 | Stub | strong |
| Udayadivākara | S1,S9 | Start | strong |
| Udayana | S2,S6 | C | strong |
| Udwadia–Kalaba formulation | S3,S4,S6 | Start | strong |
| Ueli Maurer (cryptographer) | S2,S8,S9 | Start | strong |
| UES (cipher) | S2,S5 | Stub | strong |
| Uffe Haagerup | S1,S8,S9 | C | strong |
| Ugo Amaldi (mathematician) | S1,S8,S9 | Stub | strong |
| Ugo Broggi | S1,S8 | Start | strong |
| Ugo Morin | S1,S8 | Stub | strong |
| Uhlenbeck | S4 | | strong |
| UK Data Archive | S2 | Start | strong |
| UK Data Service | S2 | C | strong |
| UK Molecular R-matrix Codes | S3,S6 | Stub | S6 near |
| UK Statistics Authority | S2 | Start | strong |
| Ulam matrix | S1,S5,S6,S8 | Stub | strong |
| Ulam number | S1,S5,S6,S8,S9 | C | strong |
| Ulam spiral | S1,S5,S6,S8,S9 | Start | strong |
| Ulam's game | S1,S5,S6 | Stub | strong |
| Ulam's packing conjecture | S1,S5,S6,S8,S9 | Start | strong |
| Ulf Grenander | S1,S2,S8,S9 | Stub | strong |
| Ulisse Stefanelli | S1 | Start | strong |
| Ulla Dinger | S1 | Stub | strong |
| Ulla Pursiheimo | S1 | Stub | strong |
| Ulpian's life table | S2,S6 | C | strong |
| Ulrica Wilson | S1 | C | strong |
| Ulrich Görtz | S1,S9 | Start | strong |
| Ulrich Kohlenbach | S1,S8,S9 | Stub | strong |
| Ulrich Kulisch | S1,S8,S9 | Start | strong |
| Ulrich Pinkall | S1,S8,S9 | Stub | strong |
| Ulrich Stuhler | S1,S8,S9 | Stub | strong |
| Ulrike Grömping | S2 | Stub | strong |
| Ulrike Leopold-Wildburger | S1,S6 | Start | strong |
| Ulrike Meier Yang | S1,S3 | Start | strong |
| Ulrike Sattler | S2 | Start | strong |
| Ulrike Tillmann | S1,S5,S8,S9 | Start | strong |
| Ultimate Boeing 747 gambit | S2 | C | strong |
| Ultimate reality | S6 | | S6 near |
| Ultimatum game | S4,S5,S6 | | strong |
| Ultra (cryptography) | S2,S6 | C | strong |
| Ultrabarrelled space | S1,S6,S9 | Start | strong |
| Ultrabornological space | S1,S6,S9 | Start | strong |
| Ultraconnected space | S1,S6,S9 | Stub | strong |
| Ultradistribution | S1,S6 | Stub | strong |
| Ultrafilter | S1,S4,S5,S6,S8,S9 | B | strong |
| Ultrafilter on a set | S1,S4,S6,S8,S9 | C | strong |
| Ultrafinitism | S1,S2,S5,S6,S8,S9 | Start | strong |
| Ultragraph C*-algebra | S1,S6 | Stub | strong |
| Ultrahyperbolic equation | S1,S6 | Stub | strong |
| Ultralimit | S1,S5,S6,S8,S9 | Start | strong |
| Ultrametric space | S1,S4,S5,S6,S8,S9 | Start | strong |
| Ultraparallel theorem | S1,S4,S5,S6,S8,S9 | C | strong |
| Ultrapolynomial | S1,S5,S6 | Stub | strong |
| Ultraproduct | S1,S4,S5,S6,S8,S9 | C | strong |
| Ultrastrong topology | S1,S8,S9 | Start | strong |
| UltraViolet (website) | S2 | C | strong |
| Ultraweak topology | S1,S4,S5,S8,S9 | Start | strong |
| UMAC (cryptography) | S2 | Start | strong |
| Umberto Zannier | S1,S8,S9 | Start | strong |
| Umbilic torus | S1,S4,S6,S9 | Start | strong |
| Umbilical point | S1,S4,S5,S8,S9 | C | strong |
| Umbral calculus | S1,S5,S6,S8,S9 | B | strong |
| Umbral moonshine | S1,S5,S6,S8,S9 | Start | strong |
| Umbrella review | S2 | Start | strong |
| Umbrella sampling | S1,S2,S6,S8 | Start | strong |
| Unambiguous Turing machine | S1,S3,S6,S8 | Start | strong |
| Unary function | S1,S5,S6,S8,S9 | Stub | strong |
| Unary language | S1,S6 | Stub | strong |
| Unary numeral system | S1,S5,S6,S8,S9 | Start | strong |
| Unary operation | S1,S4,S5,S6,S8,S9 | Start | strong |
| Unavoidable pattern | S1,S6 | Start | strong |
| Unbalanced oil and vinegar scheme | S2 | C | strong |
| Unbiased estimation of standard deviation | S1,S2,S9 | Start | strong |
| Unbounded operator | S1,S4,S5,S6,S8,S9 | C | strong |
| Uncertain data | S2,S6 | Stub | strong |
| Uncertain database | S2,S3 | Stub | strong |
| Uncertain geographic context problem | S2,S9 | C | strong |
| Uncertain inference | S2,S6 | Start | strong |
| Uncertainty | S2,S3,S6,S9 | C | strong |
| Uncertainty analysis | S2 | Start | strong |
| Uncertainty coefficient | S2,S6 | Start | strong |
| Uncertainty principle | S3,S4,S5,S6,S8,S9 | B | strong |
| Uncertainty quantification | S2,S3,S6,S9 | C | strong |
| Uncomfortable science | S2,S6 | Start | strong |
| Unconditional convergence | S1,S4,S6,S9 | Stub | strong |
| Uncorrelated asymmetry | S6,S9 | | S6 near |
| Uncorrelatedness | S2,S4,S5,S8 | Start | strong |
| Uncountable set | S1,S4,S5,S6,S8,S9 | Start | strong |
| Undecidable problem | S1,S5,S6,S8,S9 | Start | strong |
| Undefined (mathematics) | S1,S5,S6,S8,S9 | Start | strong |
| Underactuation | S3,S4,S6 | Stub | strong |
| Underdetermined system | S1,S6,S9 | Start | strong |
| Undergraduate Texts in Mathematics | S1,S9 | List | strong |
| Underwood Dudley | S1,S6,S8,S9 | Start | strong |
| Undulating number | S1,S5,S6,S8,S9 | Start | strong |
| Unduloid | S1,S5 | Stub | strong |
| Unemployment in Scotland | S2 | List | strong |
| Unethical human experimentation | S2 | Start | strong |
| Unevenly spaced time series | S2,S9 | Start | strong |
| Unexpected hanging paradox | S2,S5,S8 | C | strong |
| Unfoldable cardinal | S1,S6,S8,S9 | Stub | strong |
| Unfolding (functions) | S1,S6 | Start | strong |
| Unfriendly partition | S6,S8 | | S6 near |
| Ungula | S1,S5,S6,S8,S9 | C | strong |
| Unibranch local ring | S1,S6,S8,S9 | Stub | strong |
| Unicity distance | S2,S4,S6 | Start | strong |
| Unicoherent space | S1,S5,S6,S8,S9 | Stub | strong |
| Unification (computer science) | S1,S3,S4,S5,S6,S8,S9 | C | strong |
| Unified Foundational Ontology | S2,S3 | Start | strong |
| Unified neutral theory of biodiversity | S4,S6 | | strong |
| Uniform 1 k2 polytope | S1,S5,S6,S8,S9 | Start | strong |
| Uniform 10-polytope | S1,S8,S9 | Redirect | strong |
| Uniform 2 k1 polytope | S1,S5,S6,S8,S9 | Start | strong |
| Uniform 4-polytope | S1,S5,S8,S9 | C | strong |
| Uniform 5-polytope | S1,S8,S9 | B | strong |
| Uniform 6-polytope | S1,S5,S8,S9 | Start | strong |
| Uniform 7-polytope | S1,S5,S8,S9 | Start | strong |
| Uniform 8-polytope | S1,S8,S9 | Start | strong |
| Uniform 9-polytope | S1,S8,S9 | Redirect | strong |
| Uniform absolute-convergence | S1,S5,S6 | Start | strong |
| Uniform algebra | S1,S4,S5,S6,S9 | Stub | strong |
| Uniform antiprismatic prism | S1,S5,S8,S9 | Stub | strong |
| Uniform boundedness | S1,S6,S8,S9 | Start | strong |
| Uniform boundedness conjecture for rational points | S1,S4,S5,S6,S8,S9 | Start | strong |
| Uniform boundedness principle | S1,S4,S5,S6,S8,S9 | C | strong |
| Uniform coloring | S1,S5,S6,S8,S9 | Stub | strong |
| Uniform continuity | S1,S4,S5,S6,S8,S9 | B | strong |
| Uniform convergence | S1,S4,S5,S6,S8,S9 | C | strong |
| Uniform convergence in probability | S1,S6 | C | strong |
| Uniform Crime Reports | S2 | C | strong |
| Uniform honeycombs in hyperbolic space | S1,S6,S8,S9 | List | strong |
| Uniform integrability | S1,S4,S5,S8 | C | strong |
| Uniform isomorphism | S1,S6,S8,S9 | Stub | strong |
| Uniform k 21 polytope | S1,S5,S6,S8,S9 | Start | strong |
| Uniform limit theorem | S1,S4,S5,S6,S9 | Start | strong |
| Uniform matroid | S1,S5,S6 | C | strong |
| Uniform module | S1,S4,S5,S6,S8,S9 | Start | strong |
| Uniform norm | S1,S4,S5,S6,S8,S9 | Start | strong |
| Uniform polyhedron | S1,S5,S8,S9 | C | strong |
| Uniform polyhedron compound | S1,S8,S9 | List | strong |
| Uniform polytope | S1,S4,S6,S8,S9 | B | strong |
| Uniform property | S1,S5,S6,S8 | Start | strong |
| Uniform space | S1,S4,S5,S6,S8 | B | strong |
| Uniform star polyhedron | S1,S8,S9 | Start | strong |
| Uniform theory of diffraction | S3,S4,S6,S8 | Stub | strong |
| Uniform tiling | S1,S5,S6,S8 | Start | strong |
| Uniform tiling symmetry mutations | S1,S6 | List | strong |
| Uniform tilings in hyperbolic plane | S1,S6,S8,S9 | Start | strong |
| Uniform tree | S1 | Stub | strong |
| Uniformizable space | S1,S6,S8,S9 | Start | strong |
| Uniformization (probability theory) | S1,S2,S6 | Start | strong |
| Uniformization (set theory) | S1,S5,S6,S8,S9 | Stub | strong |
| Uniformization theorem | S1,S4,S5,S6,S8,S9 | C | strong |
| Uniformly bounded representation | S1,S6,S8,S9 | C | strong |
| Uniformly Cauchy sequence | S1,S5,S6,S8,S9 | Stub | strong |
| Uniformly connected space | S1,S6,S8,S9 | Stub | strong |
| Uniformly convex space | S1,S4,S5,S8,S9 | Start | strong |
| Uniformly disconnected space | S1,S6,S9 | Stub | strong |
| Uniformly distributed measure | S1,S5,S6 | Start | strong |
| Uniformly hyperfinite algebra | S1,S5 | Start | strong |
| Uniformly most powerful test | S2,S4,S8,S9 | Start | strong |
| Uniformly smooth space | S1,S8,S9 | Start | strong |
| Unifying theories in mathematics | S2,S6,S8 | Start | strong |
| Unigraph | S1,S5,S6 | Start | strong |
| Unikrn | S2 | | strong |
| Unilateral shift operator | S1,S6,S9 | Start | strong |
| Unimodality | S1,S2,S5,S6,S8,S9 | C | strong |
| Unimodular lattice | S1,S5,S6,S9 | Start | strong |
| Unimodular matrix | S1,S4,S5,S6,S9 | C | strong |
| Unimodular polynomial matrix | S1,S5,S6 | Stub | strong |
| Union (set theory) | S1,S4,S5,S6,S8,S9 | Start | strong |
| Union of Slovak Mathematicians and Physicists | S1,S3,S8 | Start | strong |
| Union-closed sets conjecture | S1,S4,S5,S6,S8,S9 | Start | strong |
| Unipotent | S1,S6,S8,S9 | Start | strong |
| Unipotent representation | S1,S6 | Stub | strong |
| Unique factorization domain | S1,S4,S5,S6,S8,S9 | Start | strong |
| Unique games conjecture | S1,S3,S4,S5,S6,S8,S9 | Start | strong |
| Unique homomorphic extension theorem | S1,S5,S6,S8 | Start | strong |
| Unique sink orientation | S1,S6,S9 | Start | strong |
| Uniquely colorable graph | S1,S5,S6,S8 | Start | strong |
| Uniqueness case | S1,S6 | Stub | strong |
| Uniqueness of identity proofs | S1,S3,S6 | Start | strong |
| Uniqueness quantification | S1,S2,S4,S5,S6,S8,S9 | Start | strong |
| Uniqueness theorem | S5,S6,S9 | | S6 near |
| Uniqueness theorem for Poisson's equation | S3,S5,S6 | Start | S6 near |
| Unisolvent functions | S1,S6,S8 | Stub | strong |
| Unisolvent point set | S1,S4,S6,S8,S9 | Stub | strong |
| Unistochastic matrix | S1,S6 | Stub | strong |
| Unit (ring theory) | S1,S4,S5,S6,S8,S9 | Start | strong |
| Unit circle | S1,S5,S6,S8,S9 | Start | strong |
| Unit commitment problem in electrical power production | S1,S6 | Start | strong |
| Unit cube | S1,S5,S6,S9 | Start | strong |
| Unit disk | S1,S4,S5,S6,S8 | Start | strong |
| Unit disk graph | S1,S6,S9 | C | strong |
| Unit distance graph | S1,S4,S5,S6,S8,S9 | GA | strong |
| Unit doublet | S1,S6 | Stub | strong |
| Unit fraction | S1,S5,S6,S8,S9 | GA | strong |
| Unit function | S1,S5,S6,S9 | Stub | strong |
| Unit hyperbola | S1,S5,S6,S8,S9 | C | strong |
| Unit in the last place | S4,S6 | | strong |
| Unit interval | S1,S5,S6,S8,S9 | Start | strong |
| Unit measure | S1,S5,S6 | Stub | strong |
| Unit of analysis | S2 | Start | strong |
| Unit of observation | S2,S9 | Start | strong |
| Unit propagation | S6,S9 | | S6 near |
| Unit root | S2 | Start | strong |
| Unit root test | S2,S5 | Stub | strong |
| Unit sphere | S1,S4,S5,S6,S8,S9 | Start | strong |
| Unit square | S1,S5,S6,S8,S9 | Start | strong |
| Unit tangent bundle | S1,S6,S9 | Start | strong |
| Unit type | S1,S3,S5,S6 | Start | strong |
| Unit vector | S1,S3,S5,S6,S8,S9 | C | strong |
| Unit-weighted regression | S2,S6 | Start | strong |
| Unital (geometry) | S1,S4,S6,S8,S9 | Start | strong |
| Unital map | S1 | Stub | strong |
| Unitarian trick | S1,S4,S8 | Start | strong |
| Unitary divisor | S1,S5,S6,S9 | Start | strong |
| Unitary element | S1,S4,S5,S6,S9 | Stub | strong |
| Unitary group | S1,S4,S5,S8 | C | strong |
| Unitary matrix | S1,S4,S5,S6,S8,S9 | B | strong |
| Unitary method | S1,S6 | Stub | strong |
| Unitary operator | S1,S3,S4,S5,S6,S8,S9 | Start | strong |
| Unitary perfect number | S1,S5,S6,S8,S9 | Start | strong |
| Unitary representation | S1,S4,S5,S8 | Start | strong |
| Unitary transformation | S1,S5,S6,S9 | Start | strong |
| Unitary transformation (quantum mechanics) | S1,S3 | C | strong |
| United Kingdom Mathematics Trust | S1,S9 | Start | strong |
| United Nations Statistics Division | S2 | Stub | strong |
| United States census | S2 | C | strong |
| United States Census Bureau | S2,S9 | C | strong |
| United States incarceration rate | S2 | Start | strong |
| Units of information | S2,S3,S6 | C | strong |
| Unity amplitude | S1,S6 | Stub | strong |
| Univalent foundations | S1,S4,S6,S9 | | strong |
| Univalent function | S1,S4,S5,S8,S9 | Start | strong |
| Univariate | S1,S2,S5,S6,S9 | Stub | strong |
| Univariate (statistics) | S2,S6 | C | strong |
| Univariate distribution | S2,S9 | Stub | strong |
| Universal algebra | S1,S4,S5,S6,S8,S9 | Start | strong |
| Universal algebraic geometry | S1,S6 | Stub | strong |
| Universal approximation theorem | S1,S4,S6,S8,S9 | C | strong |
| Universal bundle | S1,S4,S5,S6,S8 | Start | strong |
| Universal C*-algebra | S1,S8,S9 | Start | strong |
| Universal chord theorem | S1,S5,S6 | Start | strong |
| Universal code (data compression) | S4,S6 | | strong |
| Universal coefficient theorem | S4,S5,S6,S8,S9 | | strong |
| Universal composability | S2,S3,S6 | Start | strong |
| Universal differential equation | S1,S6,S8,S9 | Stub | strong |
| Universal embedding theorem | S1,S5,S6,S9 | Start | strong |
| Universal enveloping algebra | S1,S4,S5,S6,S8,S9 | B | strong |
| Universal generalization | S1,S2,S5,S6,S8,S9 | Start | strong |
| Universal geometric algebra | S1,S6 | Start | strong |
| Universal graph | S1,S6,S8 | Start | strong |
| Universal grinder | S2 | Start | strong |
| Universal hashing | S1,S3,S6,S9 | C | strong |
| Universal homeomorphism | S1,S6,S9 | Stub | strong |
| Universal hypothesis testing | S1,S2,S6 | Start | strong |
| Universal instantiation | S1,S2,S5,S6,S8,S9 | Start | strong |
| Universal logic | S2,S9 | Start | strong |
| Universal one-way hash function | S2 | Start | strong |
| Universal parabolic constant | S1,S5,S6,S8,S9 | Start | strong |
| Universal point set | S1,S6,S8 | Start | strong |
| Universal property | S1,S4,S5,S6,S8,S9 | C | strong |
| Universal psychometrics | S2,S6 | Stub | strong |
| Universal quadratic form | S1,S6 | Start | strong |
| Universal quantification | S1,S2,S4,S5,S6,S8,S9 | Start | strong |
| Universal rhetoric | S2 | Stub | strong |
| Universal science | S1 | C | strong |
| Universal set | S1,S4,S5,S6,S8,S9 | C | strong |
| Universal space | S1,S5,S6,S9 | Start | strong |
| Universal Taylor series | S1,S6 | Stub | strong |
| Universal Teichmüller space | S1,S9 | Stub | strong |
| Universal Turing machine | S1,S3,S4,S5,S6,S8 | C | strong |
| Universal vertex | S1,S6,S8,S9 | GA | strong |
| Universality (dynamical systems) | S3,S6,S9 | Start | S6 near |
| Universality class | S3,S4,S5,S6 | Start | strong |
| Universalizability | S2 | Start | strong |
| Universally Baire set | S1,S6,S8 | Stub | strong |
| Universally measurable set | S1,S4,S6,S8,S9 | Start | strong |
| Universe (mathematics) | S1,S5,S6,S8,S9 | Start | strong |
| University of Chicago School Mathematics Project | S6,S9 | | S6 near |
| University of Liverpool Mathematics School | S1 | Start | strong |
| University of Sydney School of Mathematics and Statistics | S1,S2,S9 | Stub | strong |
| University of Waterloo Faculty of Mathematics | S1,S3,S8,S9 | | strong |
| University Ranking by Academic Performance | S2 | C | strong |
| University Statisticians of the Southern Experiment Stations | S2 | Stub | strong |
| Unknot | S1,S4,S5,S6,S8,S9 | Start | strong |
| Unknotting number | S1,S4,S5,S8,S9 | Stub | strong |
| Unknotting problem | S1,S3,S4,S5,S6,S8,S9 | Start | strong |
| Unknown key-share attack | S2,S6 | Stub | strong |
| Unlink | S1,S5,S6,S8,S9 | Stub | strong |
| Unmatched count | S2 | Stub | strong |
| Unobserved heterogeneity in duration models | S2 | Start | strong |
| Unordered pair | S1,S5,S6,S8,S9 | Stub | strong |
| Unramified morphism | S1,S4,S5,S8,S9 | Start | strong |
| Unreasonable ineffectiveness of mathematics | S6 | | S6 near |
| Unrestricted algorithm | S1,S6,S8 | Stub | strong |
| Unrestricted grammar | S2,S4,S6 | Start | strong |
| Unrooted binary tree | S1,S3,S9 | Start | strong |
| Unruh effect | S3,S4,S5,S6,S8 | B | strong |
| Unsatisfiable core | S1 | Stub | strong |
| Unscented optimal control | S1,S2,S6 | Start | strong |
| Unscented transform | S3,S4,S6 | Start | strong |
| Unseen species problem | S1,S2,S6 | Start | strong |
| Unsolved! | S2 | C | strong |
| Unstructured grid | S1,S6,S8 | Start | strong |
| Unsupervised learning | S1,S2,S3,S5 | C | strong |
| Untouchable number | S1,S5,S6,S8,S9 | Start | strong |
| Unusual number | S1,S5,S6,S9 | Start | strong |
| UP (complexity) | S1,S5,S8 | Start | strong |
| Up (game theory) | S1,S6 | Start | strong |
| Up tack | S1,S2,S6,S8,S9 | Start | strong |
| Up to | S1,S6,S8,S9 | Start | strong |
| Up-and-down design | S1,S2,S8,S9 | C | strong |
| UPGMA | S4,S5,S6 | | strong |
| Uplift modelling | S2 | C | strong |
| Upper and lower bounds | S1,S4,S6,S8,S9 | Start | strong |
| Upper and lower probabilities | S1,S2,S9 | Stub | strong |
| Upper and lower sets | S1,S4,S5,S6,S8,S9 | Start | strong |
| Upper bound theorem | S1,S4,S5,S6,S9 | Start | strong |
| Upper half-plane | S1,S4,S5,S6,S8,S9 | Start | strong |
| Upper topology | S1,S6,S8,S9 | Stub | strong |
| Upper-convected Maxwell model | S3,S4,S5 | Start | strong |
| Upper-convected time derivative | S3,S4,S5,S6 | Start | strong |
| UpSet plot | S2,S3 | Start | strong |
| Upside potential ratio | S2,S6 | Start | strong |
| Upward planar drawing | S1,S6 | C | strong |
| Upwind scheme | S1,S3,S4,S5,S6,S8,S9 | Start | strong |
| Urbain Le Verrier | S1,S9 | C | strong |
| Urban scaling | S2,S3 | Start | strong |
| Urchin (software) | S2 | Stub | strong |
| Urelement | S1,S5,S6,S8 | C | strong |
| Urey–Bigeleisen–Mayer equation | S3,S6 | C | S6 near |
| Uriel Feige | S1,S8,S9 | Start | strong |
| Uriel Rothblum | S1,S8,S9 | Start | strong |
| Urmila Mahadev | S1,S3 | Start | strong |
| Urn problem | S2,S5,S6,S9 | Start | strong |
| Urquhart graph | S1,S3,S6,S9 | Start | strong |
| Urs Schreiber | S1,S5,S9 | Start | strong |
| Urs Stammbach | S1,S9 | Stub | strong |
| Ursell function | S1,S2,S6,S9 | Stub | strong |
| Ursescu theorem | S1,S5,S6,S8,S9 | Start | strong |
| Ursula Hamenstädt | S1,S8,S9 | Start | strong |
| Ursula van Rienen | S1,S3 | Start | strong |
| Urszula Alicja Foryś | S1,S8 | C | strong |
| Urysohn and completely Hausdorff spaces | S1,S4,S5,S6,S8 | Start | strong |
| Urysohn universal space | S1,S4,S5,S6,S9 | Start | strong |
| Urysohn's lemma | S1,S4,S5,S6,S8,S9 | Start | strong |
| UsefulCharts | S2 | C | strong |
| Uses of trigonometry | S1,S6,S8 | Start | strong |
| Use–mention distinction | S2,S8,S9 | C | strong |
| Ushadevi Bhosle | S1 | Stub | strong |
| Ushiki's theorem | S1,S5,S6 | Start | strong |
| Using the Borsuk–Ulam Theorem | S1,S6,S9 | C | strong |
| Uta Merzbach | S1,S8,S9 | Start | strong |
| Utah Data Center | S2 | C | strong |
| Utilitarian cake-cutting | S1,S6 | C | strong |
| Utility | S4 | | strong |
| Utility functions on indivisible goods | S1,S6,S9 | C | strong |
| Utility maximization problem | S2,S4,S6,S9 | B | strong |
| Utilization distribution | S2 | Stub | strong |
| UTM theorem | S1,S3,S5,S6,S9 | Stub | strong |
| Utpala (astronomer) | S6,S9 | | S6 near |
| Uwe Grimm | S1,S3,S8,S9 | Stub | strong |
| Uwe Jannsen | S1,S5,S8,S9 | Stub | strong |
| Uwe Storch | S1,S8 | Stub | strong |
| Uzawa iteration | S1,S6,S8 | Start | strong |