H-closed space -- H-cobordism -- H-derivative -- H-index -- H-infinity methods in control theory -- H-matrix (iterative method) -- H-maxima transform -- H-object -- H-space -- H square -- H-stable potential -- H-theorem -- H topology -- H tree -- H-vector -- H4 (mathematics) -- H4 polytope -- Haag's theorem -- Haagerup property -- Haaland equation -- Haar measure -- Haar space -- Haar wavelet -- Haar's Tauberian theorem -- Haboush's theorem -- Hacettepe Journal of Mathematics and Statistics -- Hackenbush -- Hadamard code -- Hadamard conjecture -- Hadamard derivative -- Hadamard manifold -- Hadamard matrix -- Hadamard product (matrices) -- Hadamard regularization -- Hadamard–Rybczynski equation -- Hadamard space -- Hadamard three-circle theorem -- Hadamard three-lines theorem -- Hadamard transform -- Hadamard's dynamical system -- Hadamard's gamma function -- Hadamard's inequality -- Hadamard's lemma -- Hadamard's maximal determinant problem -- Hadamard's method of descent -- Hadjicostas's formula -- Hadwiger conjecture (combinatorial geometry) -- Hadwiger conjecture (graph theory) -- Hadwiger–Finsler inequality -- Hadwiger–Nelson problem -- Hadwiger number -- Hadwiger's theorem --

Haefliger structure -- Hafner–Sarnak–McCurley constant -- Hafnian -- Hagen–Poiseuille equation -- Hahn–Banach theorem -- Hahn decomposition theorem -- Hahn embedding theorem -- Hahn–Exton q-Bessel function -- Hahn–Kolmogorov theorem -- Hahn polynomials -- Hahn series -- Haidao Suanjing -- Hairy ball theorem -- Hájek–Le Cam convolution theorem -- Hajek projection -- Hajós construction -- Hajós's theorem -- Haken manifold -- Halanay inequality -- Halbert L. Dunn Award -- Hales–Jewett theorem -- Half-disk topology -- Half-exponential function -- Half graph -- Half-integer -- Half-life -- Half-logistic distribution -- Half-normal distribution -- Half-period ratio -- Half range Fourier series -- Half-side formula -- Half-space -- Half-space (geometry) -- Half time (physics) -- Half-transitive graph -- Halin graph -- Halin's grid theorem -- Hall algebra -- Hall–Higman theorem -- Hall–Janko graph -- Hall–Littlewood polynomials -- Hall–Petresco identity -- Hall plane -- Hall subgroup -- Hall-type theorems for hypergraphs -- Hall violator -- Hall word -- Hall's conjecture -- Hall's identity -- Hall's marriage theorem -- Hall's theorem -- Hall's universal group -- Halley's method -- Halperin conjecture -- Halpern–Läuchli theorem -- Halting problem -- Halton sequence -- Halved cube graph --

Ham sandwich theorem -- Hamburg Mathematical Society -- Hamburger moment problem -- Hamilton Institute -- Hamilton–Jacobi–Bellman equation -- Hamilton–Jacobi equation -- Hamilton Walk -- Hamilton's principle -- Hamiltonian -- Hamiltonian (control theory) -- Hamiltonian (quantum mechanics) -- Hamiltonian coloring -- Hamiltonian complexity -- Hamiltonian cycle polynomial -- Hamiltonian decomposition -- Hamiltonian field theory -- Hamiltonian fluid mechanics -- Hamiltonian matrix -- Hamiltonian mechanics -- Hamiltonian Monte Carlo -- Hamiltonian path -- Hamiltonian path problem -- Hamiltonian vector field -- Hammersley–Clifford theorem -- Hamming bound -- Hamming code -- Hamming distance -- Hamming graph -- Hamming scheme -- Hamming space -- Hamming weight -- Hamming(7,4) -- Hampshire College Summer Studies in Mathematics --

Hanan grid -- Hand-waving -- Handbook of Automated Reasoning -- Handbook of mathematical functions -- Handedness and mathematical ability -- Handle decomposition -- Handle decompositions of 3-manifolds -- Handlebody -- Handshaking lemma -- Hankel contour -- Hankel matrix -- Hankel singular value -- Hankel transform -- Hann function -- Hanna Neumann conjecture -- Hannan Medal -- Hannan–Quinn information criterion -- Hanner polytope -- Hanner's inequalities -- Hanoi graph -- Hans Reichenbach -- Hans Schneider Prize in Linear Algebra -- Hans Sluga -- Hansen's problem -- Hantzsche–Wendt manifold -- Hapax legomenon -- Happy ending problem -- Happy number -- Happy prime -- Harada–Norton group -- Harald Ganzinger -- Haran's diamond theorem -- Harary's generalized tic-tac-toe -- Harborth graph -- Harborth's conjecture -- Harcourt's theorem -- Hard–easy effect -- Hard hexagon model -- Harder–Narasimhan stratification -- Hardness of approximation -- Hardy field -- Hardy hierarchy -- Hardy–Littlewood circle method -- Hardy–Littlewood inequality -- Hardy–Littlewood maximal function -- Hardy–Littlewood Tauberian theorem -- Hardy–Littlewood zeta-function conjectures -- Hardy notation -- Hardy–Ramanujan Journal -- Hardy–Ramanujan theorem -- Hardy space -- Hardy–Weinberg principle -- Hardy's inequality -- Hardy's theorem -- Haridatta -- Harish-Chandra character -- Harish-Chandra class -- Harish-Chandra homomorphism -- Harish-Chandra isomorphism -- Harish-Chandra module -- Harish-Chandra Research Institute -- Harish-Chandra theorem -- Harish-Chandra transform -- Harish-Chandra's Ξ function -- Harish-Chandra's c-function -- Harish-Chandra's function -- Harish-Chandra's regularity theorem -- Harish-Chandra's Schwartz space -- Harmonic -- Harmonic (mathematics) -- Harmonic analysis -- Harmonic conjugate -- Harmonic coordinates -- Harmonic cross-ratio -- Harmonic differential -- Harmonic distribution -- Harmonic divisor number -- Harmonic function -- Harmonic Maass form -- Harmonic map -- Harmonic mean -- Harmonic mean p-value -- Harmonic measure -- Harmonic morphism -- Harmonic number -- Harmonic oscillator -- Harmonic pitch class profiles -- Harmonic polynomial -- Harmonic progression (mathematics) -- Harmonic quadrilateral -- Harmonic series (mathematics) -- Harmonic spectrum -- Harmonic wavelet transform -- Harmonices Mundi -- Harmonious coloring -- Harmonious set -- Harmonograph -- Harmony search -- Harnack's curve theorem -- Harnack's inequality -- Harnack's principle -- Harries graph -- Harries–Wong graph -- Harris chain -- Harrop formula -- Harshad number -- Hart circle -- Hartley kernel -- Hartley transform -- Hartley's test -- Hartman–Grobman theorem -- Hartogs number -- Hartogs–Rosenthal theorem -- Hartogs's extension theorem -- Hartogs's theorem on separate holomorphicity -- Hartree equation -- Hartree-Fock -- Hartshorne ellipse -- Haruki's Theorem --

Hasegawa–Mima equation -- Haseman–Elston regression -- Hasse–Arf theorem -- Hasse–Davenport relation -- Hasse derivative -- Hasse diagram -- Hasse invariant -- Hasse invariant of a quadratic form -- Hasse invariant of an algebra -- Hasse–Minkowski theorem -- Hasse norm theorem -- Hasse principle -- Hasse–Schmidt derivation -- Hasse–Weil zeta function -- Hasse–Witt matrix -- Hasse's theorem -- Hasse's theorem on elliptic curves -- Hat operator -- Hatch mark -- Hattori–Stong theorem -- Hauksbók -- Hauptvermutung -- Hausdorff Center for Mathematics -- Hausdorff completion -- Hausdorff density -- Hausdorff dimension -- Hausdorff distance -- Hausdorff gap -- Hausdorff maximal principle -- Hausdorff measure -- Hausdorff Medal -- Hausdorff moment problem -- Hausdorff paradox -- Hausdorff space -- Hausdorff–Young inequality -- Hautus lemma --

Havel–Hakimi algorithm -- Haven (graph theory) -- Haversine formula -- Hawaiian earring -- Hawkes process -- Haybittle–Peto boundary -- Haynsworth inertia additivity formula -- Hazard ratio -- Hazen–Williams equation -- HCS clustering algorithm -- Head injury criterion -- Head normal form -- Healthy user bias -- Heap (mathematics) -- Heap's algorithm -- Heaps' law -- Hearing the shape of a drum -- Heart -- Heat equation -- Heat kernel -- Heat kernel signature -- Heath-Brown–Moroz constant -- Heaviside cover-up method -- Heaviside step function -- Heavy path decomposition -- Heavy-tailed distribution -- Heavy traffic approximation -- Heawood conjecture -- Heawood graph -- Heawood number --

Hebesphenomegacorona -- Hebrew numerals -- Hecke algebra -- Hecke algebra (disambiguation) -- Hecke algebra of a finite group -- Hecke algebra of a locally compact group -- Hecke algebra of a pair -- Hecke character -- Hecke L-function -- Hecke operator -- Heckman correction -- Heckman–Opdam polynomials -- Hectogon -- Hector Medal -- Hedetniemi's conjecture -- Hedgehog (geometry) -- Hedgehog (hypergraph) -- Hedgehog space -- Heegaard splitting -- Heegner number -- Heegner point -- Heegner's lemma -- Heesch's problem -- Hegarty Maths -- Heh (god) -- Height (abelian group) -- Height function -- Height zeta function -- Heilbronn Institute for Mathematical Research -- Heilbronn set -- Heilbronn triangle problem -- Heine–Borel theorem -- Heine–Cantor theorem -- Heine–Stieltjes polynomials -- Heine's identity -- Heinz Hopf Prize -- Heinz mean -- Heisenberg group -- Heisenberg model -- Heisenberg picture --

Hekat -- Held group -- Held–Karp algorithm -- Helical boundary conditions -- Helicoid -- Heliospheric current sheet -- Helix -- Hellenic Mathematical Society -- Hellin's law -- Hellinger distance -- Hellinger integral -- Hellinger–Toeplitz theorem -- Helly–Bray theorem -- Helly family -- Helly space -- Helly's selection theorem -- Helly's theorem -- Helmert transformation -- Helmert–Wolf blocking -- Helmholtz decomposition -- Helmholtz equation -- Helmholtz theorem -- Helmholtz theorem (classical mechanics) -- Helmholtz's theorems -- Hemi-cuboctahedron -- Hemi-dodecahedron -- Hemi-icosahedron -- Hemi-octahedron -- Hemicompact space -- Hemicontinuity -- Hemicube (geometry) -- Hemihelix -- Hemiperfect number -- Hemipolyhedron --

Hendecagon -- Hendecagonal prism -- Hendecagram -- Hendecagrammic prism -- Hendecahedron -- Henneberg surface -- Hennessy-Milner logic -- Hénon–Heiles system -- Hénon map -- Henri Poincaré Prize -- Hensel's lemma -- Henselian ring -- Henson graph -- Henstock–Kurzweil integral -- Heptacontagon -- Heptadecagon -- Heptadecahedron -- Heptadiagonal matrix -- Heptagon -- Heptagonal antiprism -- Heptagonal bipyramid -- Heptagonal number -- Heptagonal prism -- Heptagonal tiling -- Heptagonal tiling honeycomb -- Heptagonal trapezohedron -- Heptagonal triangle -- Heptagram -- Heptagrammic cupola -- Heptagrammic-order heptagonal tiling -- Heptahedron -- Heptellated 8-simplexes -- Heptomino --

Herbrand interpretation -- Herbrand normal form -- Herbrand quotient -- Herbrand–Ribet theorem -- Herbrand structure -- Herbrand's theorem -- Herbrandization -- Herchel Smith Professorship of Pure Mathematics -- Hereditarily countable set -- Hereditarily finite set -- Hereditarily normal space -- Hereditarily paracompact space -- Hereditarily well-founded set -- Hereditary C*-subalgebra -- Hereditary property -- Hereditary ring -- Hereditary set -- Herglotz–Zagier function -- Herman ring -- Hermes Project -- Hermite constant -- Hermite distribution -- Hermite–Hadamard inequality -- Hermite interpolation -- Hermite–Minkowski theorem -- Hermite normal form -- Hermite number -- Hermite polynomials -- Hermite reciprocity -- Hermite ring -- Hermite spline -- Hermite transform -- Hermite's cotangent identity -- Hermite's identity -- Hermite's problem -- Hermitian adjoint -- Hermitian connection -- Hermitian function -- Hermitian manifold -- Hermitian matrix -- Hermitian symmetric space -- Hermitian variety -- Hermitian wavelet -- Hermitian Yang–Mills connection -- Heron's formula -- Heronian mean -- Heronian tetrahedron -- Heronian triangle -- Herringbone pattern -- Herschel–Bulkley fluid -- Herschel graph -- Herz–Schur multiplier -- Herzog–Schönheim conjecture --

Hess triangle -- Hesse configuration -- Hesse normal form -- Hesse pencil -- Hesse's principle of transfer -- Hesse's theorem -- Hessenberg matrix -- Hessenberg variety -- Hessian automatic differentiation -- Hessian equation -- Hessian form of an elliptic curve -- Hessian group -- Hessian matrix -- Hessian pair -- Hessian polyhedron -- Heston model -- Heteroclinic bifurcation -- Heteroclinic cycle -- Heteroclinic network -- Heteroclinic orbit -- Heterogeneous random walk in one dimension -- Heteroskedasticity-consistent standard errors -- Hetucakra -- Heun function -- Heun's method -- Hewitt–Savage zero–one law -- Hex (board game) -- Hexacode -- Hexacontagon -- Hexacontatetragon -- Hexadecagon -- Hexadecahedron -- Hexadecimal -- Hexafoil -- Hexagon -- Hexagonal antiprism -- Hexagonal bifrustum -- Hexagonal bipyramid -- Hexagonal Efficient Coordinate System -- Hexagonal lattice -- Hexagonal number -- Hexagonal prism -- Hexagonal pyramid -- Hexagonal tiling -- Hexagonal tiling honeycomb -- Hexagonal tiling-triangular tiling honeycomb -- Hexagonal tortoise problem -- Hexagonal trapezohedron -- Hexagram -- Hexahedron -- Hexany -- Hexapawn -- Hexecontahedron -- Hexic 7-cubes -- Hexicated 7-cubes -- Hexicated 7-orthoplexes -- Hexicated 7-simplexes -- Hexicated 8-simplexes -- Hexomino --

Heyde theorem -- Heyting algebra -- Heyting arithmetic -- Heyting field -- Hicks equation -- Hicksian demand function -- Hidato -- Hidden algebra -- Hidden attractor -- Hidden Field Equations -- Hidden Figures (book) -- Hidden linear function problem -- Hidden Markov model -- Hidden Markov random field -- Hidden semi-Markov model -- Hidden subgroup problem -- Hierarchical closeness -- Hierarchical clustering of networks -- Hierarchical constraint satisfaction -- Hierarchical decision process -- Hierarchical Dirichlet process -- Hierarchical generalized linear model -- Hierarchical hidden Markov model -- Hierarchical linear modeling -- Hierarchical matrix -- Hierarchical RBF -- Hierarchy (mathematics) -- Higgs bundle -- Higgs mechanism -- Higgs prime -- High (computability) -- High availability -- High-dimensional model representation -- High-dimensional statistics -- High-resolution scheme -- High School Attached to Beijing University of Technology -- Higher category theory -- Higher-dimensional algebra -- Higher-dimensional gamma matrices -- Higher gauge theory -- Higher local field -- Higher-order compact finite difference scheme -- Higher-order factor analysis -- Higher-order function -- Higher-order grammar -- Higher-order logic -- Higher-order operad -- Higher-order singular value decomposition -- Higher-order statistics -- Higher residuosity problem -- Higher spin alternating sign matrix -- Higher Topos Theory -- Highest averages method -- Highest-weight category -- Highly abundant number -- Highly composite number -- Highly cototient number -- Highly cototient prime -- Highly irregular graph -- Highly optimized tolerance -- Highly powerful number -- Highly structured ring spectrum -- Highly totient number -- HiGHS optimization solver -- Higman group -- Higman–Sims asymptotic formula -- Higman–Sims graph -- Higman–Sims group -- Higman's embedding theorem -- Higman's lemma -- Higraph -- Higuchi dimension --

Hilbert algebra -- Hilbert basis -- Hilbert basis (linear programming) -- Hilbert–Bernays paradox -- Hilbert–Bernays provability conditions -- Hilbert–Burch theorem -- Hilbert C*-module -- Hilbert class field -- Hilbert cube -- Hilbert curve -- Hilbert field -- Hilbert geometry -- Hilbert–Kunz function -- Hilbert manifold -- Hilbert matrix -- Hilbert metric -- Hilbert modular form -- Hilbert modular variety -- Hilbert–Mumford criterion -- Hilbert number -- Hilbert–Poincaré series -- Hilbert–Pólya conjecture -- Hilbert projection theorem -- Hilbert–Samuel function -- Hilbert scheme -- Hilbert–Schmidt integral operator -- Hilbert–Schmidt operator -- Hilbert–Schmidt theorem -- Hilbert series and Hilbert polynomial -- Hilbert–Smith conjecture -- Hilbert space -- Hilbert–Speiser theorem -- Hilbert symbol -- Hilbert system -- Hilbert transform -- Hilbert's arithmetic of ends -- Hilbert's axioms -- Hilbert's basis theorem -- Hilbert's eighteenth problem -- Hilbert's eighth problem -- Hilbert's eleventh problem -- Hilbert's fifteenth problem -- Hilbert's fifth problem -- Hilbert's first problem -- Hilbert's fourteenth problem -- Hilbert's fourth problem -- Hilbert's inequality -- Hilbert's irreducibility theorem -- Hilbert's lemma -- Hilbert's nineteenth problem -- Hilbert's ninth problem -- Hilbert's Nullstellensatz -- Hilbert's paradox of the Grand Hotel -- Hilbert's problems -- Hilbert's program -- Hilbert's second problem -- Hilbert's seventeenth problem -- Hilbert's seventh problem -- Hilbert's sixteenth problem -- Hilbert's sixth problem -- Hilbert's syzygy theorem -- Hilbert's tenth problem -- Hilbert's theorem (differential geometry) -- Hilbert's Theorem 90 -- Hilbert's third problem -- Hilbert's thirteenth problem -- Hilbert's twelfth problem -- Hilbert's twentieth problem -- Hilbert's twenty-first problem -- Hilbert's twenty-fourth problem -- Hilbert's twenty-second problem -- Hilbert's twenty-third problem -- Hill climbing -- Hill differential equation -- Hill tetrahedron -- Hill's model -- Hill's spherical vortex -- Hille–Yosida theorem -- Hilton's theorem --

Himmelblau's function -- Hindley–Milner type system -- Hindmarsh–Rose model -- Hindu–Arabic numeral system -- Hindu units of time -- Hindustani numerals -- Hinge theorem -- Hinged dissection -- Hippopede -- Hiptmair–Xu preconditioner -- Hironaka decomposition -- Hironaka's example -- Hiroshima Mathematical Journal -- Hiroyuki Goto -- Hirsch conjecture -- Hirsch–Plotkin radical -- Hirschberg's algorithm -- Hirzebruch–Riemann–Roch theorem -- Hirzebruch surface -- Histogram -- Historia Mathematica -- Historical dynamics -- Historiometry -- History monoid -- History of algebra -- History of ancient numeral systems -- History of arithmetic -- History of artificial neural networks -- History of calculus -- History of combinatorics -- History of computer science -- History of computing -- History of geometry -- History of Grandi's series -- History of group theory -- History of Hindu Mathematics -- History of human thought -- History of knot theory -- History of large numbers -- History of logarithms -- History of logic -- History of Lorentz transformations -- History of manifolds and varieties -- History of mathematical notation -- History of mathematics -- History of Maxwell's equations -- History of measurement -- History of network traffic models -- History of numerical solution of differential equations using computers -- History of probability -- History of quaternions -- History of statistics -- History of the Church–Turing thesis -- History of the function concept -- History of the Hindu–Arabic numeral system -- History of the separation axioms -- History of the Theory of Numbers -- History of topos theory -- History of trigonometry -- History of type theory -- History of variational principles in physics --

Hitchin functional -- Hitchin system -- Hitchin–Thorpe inequality -- Hitchin's equations -- Hitting time -- Hjelmslev transformation -- Hjelmslev's theorem -- Hjulström curve -- HM-GM-AM-QM inequalities -- HMMT -- HN group -- HNN extension -- Hobbes–Wallis controversy -- Hobby–Rice theorem -- Hoberman sphere -- Hochschild homology -- Hochschild–Mostow group -- Hochster–Roberts theorem -- Hockey stick graph -- Hockey-stick identity -- Hodge algebra -- Hodge–Arakelov theory -- Hodge bundle -- Hodge conjecture -- Hodge cycle -- Hodge–de Rham spectral sequence -- Hodge index theorem -- Hodge star operator -- Hodge structure -- Hodge–Tate module -- Hodge theorem -- Hodge theory -- Hodges–Lehmann estimator -- Hodgkin–Huxley model -- HoDoMS --

Hoeffding's independence test -- Hoeffding's inequality -- Hoeffding's lemma -- Hoffman graph -- Hoffman–Singleton graph -- Hofstadter points -- Hofstadter sequence -- Hofstadter's butterfly -- Hokkien numerals -- Hoklas code -- Hölder condition -- Hölder summation -- Hölder's inequality -- Hölder's theorem -- Holditch's theorem -- Holland's schema theorem -- Hollow matrix -- Holm–Bonferroni method -- Holmes–Thompson volume -- Holmgren's uniqueness theorem -- Holmström's theorem -- Holomorph (mathematics) -- Holomorphic curve -- Holomorphic discrete series representation -- Holomorphic function -- Holomorphic functional calculus -- Holomorphic Lefschetz fixed-point formula -- Holomorphic separability -- Holomorphic tangent bundle -- Holomorphic vector bundle -- Holonomic -- Holonomic basis -- Holonomic function -- Holonomy -- Holt graph -- Holtsmark distribution -- Holyhedron --

Hom functor -- Home prime -- Homeomorphism -- Homeomorphism (graph theory) -- Homeomorphism group -- Homeotopy -- HOMFLY polynomial -- Homicidal chauffeur problem -- Homoclinic bifurcation -- Homoclinic connection -- Homoclinic orbit -- Homoeoid -- Homogeneity (statistics) -- Homogeneity blockmodeling -- Homogeneous (large cardinal property) -- Homogeneous coordinate ring -- Homogeneous coordinates -- Homogeneous differential equation -- Homogeneous distribution -- Homogeneous function -- Homogeneous graph -- Homogeneous linear equation -- Homogeneous polynomial -- Homogeneous relation -- Homogeneous space -- Homogeneous tree -- Homogeneous variety -- Homogeneously Suslin set -- Homography -- Homography (computer vision) -- Homological algebra -- Homological conjectures in commutative algebra -- Homological connectivity -- Homological dimension -- Homological integration -- Homological mirror symmetry -- Homological stability -- Homology (mathematics) -- Homology manifold -- Homology sphere -- Homology, Homotopy and Applications -- Homomorphic encryption -- Homomorphic equivalence -- Homomorphic secret sharing -- Homomorphic signatures for network coding -- Homomorphism -- Homoscedasticity and heteroscedasticity -- Homothetic center -- Homothetic transformation -- Homotopical algebra -- Homotopical connectivity -- Homotopy -- Homotopy analysis method -- Homotopy associative algebra -- Homotopy category -- Homotopy category of chain complexes -- Homotopy colimit and limit -- Homotopy excision theorem -- Homotopy extension property -- Homotopy fiber -- Homotopy group -- Homotopy group with coefficients -- Homotopy groups of spheres -- Homotopy hypothesis -- Homotopy Lie algebra -- Homotopy lifting property -- Homotopy principle -- Homotopy sphere -- Homotopy theory -- Homotopy type theory --

Honda–Tate theorem -- Honest leftmost branch -- Honeycomb -- Honeycomb (geometry) -- Honeycomb conjecture -- Hong Kong Mathematical High Achievers Selection Contest -- Hong Kong Mathematics Olympiad -- Hook length formula -- Hooper's paradox -- Hoover index -- Hopcroft–Karp algorithm -- Hopf algebra -- Hopf algebra of permutations -- Hopf algebroid -- Hopf bifurcation -- Hopf conjecture -- Hopf construction -- Hopf decomposition -- Hopf fibration -- Hopf invariant -- Hopf lemma -- Hopf link -- Hopf manifold -- Hopf maximum principle -- Hopf–Rinow theorem -- Hopf surface -- Hopf theorem -- Hopfian group -- Hopfian object -- Hopfion -- Hopkins–Levitzki theorem --

Horikawa surface -- Horizon of predictability -- Horizontal coordinate system -- Horizontal line test -- Horizontal plane -- Hörmander's condition -- Horn angle -- Horn clause -- Horn function -- Horn logic -- Horn-satisfiability -- Horner's method -- Horocycle -- Horologium Oscillatorium -- Horopter -- Horosphere -- Horrocks bundle -- Horrocks construction -- Horrocks–Mumford bundle -- Horsengoggle -- Horseshoe lemma -- Horseshoe map -- Horton graph -- Horvitz–Thompson estimator -- Hosaka plot -- Hoshen–Kopelman algorithm -- Hosmer–Lemeshow test -- Hosohedron -- Hosoya index -- Hosoya's triangle -- HOSVD-based canonical form of TP functions and qLPV models --

Hot game -- Hotch Potch House -- Hotelling's lemma -- Hotelling's T-squared distribution -- Hotelling's t-squared statistic -- Hotelling's two-sample T-squared statistic -- Hough function -- House with two rooms -- Householder operator -- Householder transformation -- Householder's method -- Houses for Visiting Mathematicians -- How Long Is the Coast of Britain? Statistical Self-Similarity and Fractional Dimension -- How Not to Be Wrong -- How Round Is Your Circle? -- How to Bake Pi -- How to Lie with Statistics -- How to Solve It -- How to Solve it by Computer -- Howell normal form -- Howson property -- Hrushovski construction -- Hsiang–Lawson's conjecture -- Hsu–Robbins–Erdős theorem -- Hu–Washizu principle -- Hua's identity -- Hua's lemma -- Hub labels -- Hubbard–Stratonovich transformation -- Hubbert curve -- Huber-White standard errors --

Hudde's rules -- Huff model -- Huffman coding -- Huge cardinal -- Hughes plane -- Huisken's monotonicity formula -- Human-based genetic algorithm -- Humanities Indicators -- Humbert polynomials -- Humbert series -- Humbert surface -- Hume's principle -- Hundred-dollar, Hundred-digit Challenge problems -- Hundred Fowls Problem -- Hundredth -- Hungarian algorithm -- Hunt process -- Hunt–Szymanski algorithm -- Hunter–Saxton equation -- Huntington–Hill method -- Hurewicz space -- Hurewicz theorem -- Hurst exponent -- Hurwitz class number -- Hurwitz determinant -- Hurwitz matrix -- Hurwitz polynomial -- Hurwitz problem -- Hurwitz quaternion -- Hurwitz quaternion order -- Hurwitz scheme -- Hurwitz surface -- Hurwitz zeta function -- Hurwitz's automorphisms theorem -- Hurwitz's theorem -- Hurwitz's theorem (complex analysis) -- Hurwitz's theorem (composition algebras) -- Hurwitz's theorem (normed division algebras) -- Hurwitz's theorem (number theory) --

Husimi Q representation -- Hutchinson metric -- Hutchinson operator -- Huzita–Hatori axioms -- Hybrid automaton -- Hybrid bond graph -- Hybrid CORDIC -- Hybrid electric double layer -- Hybrid logic -- Hybrid system -- Hybrid topology -- Hydra game -- Hydrodynamica -- Hydrological optimization -- Hyers–Ulam–Rassias stability -- Hylomorphism (computer science) -- Hyper-Erlang distribution -- Hyper-finite field -- Hyper-heuristic -- Hyper-Wiener index -- Hyperarithmetical theory -- Hyperbola -- Hyperbolastic functions -- Hyperbolic 3-manifold -- Hyperbolic angle -- Hyperbolic coordinates -- Hyperbolic Dehn surgery -- Hyperbolic distribution -- Hyperbolic equilibrium point -- Hyperbolic functions -- Hyperbolic geometric graph -- Hyperbolic geometry -- Hyperbolic group -- Hyperbolic growth -- Hyperbolic law of cosines -- Hyperbolic link -- Hyperbolic logarithm -- Hyperbolic manifold -- Hyperbolic metric space -- Hyperbolic motion -- Hyperbolic-orthogonal -- Hyperbolic partial differential equation -- Hyperbolic plane (disambiguation) -- Hyperbolic point -- Hyperbolic quaternion -- Hyperbolic secant distribution -- Hyperbolic sector -- Hyperbolic set -- Hyperbolic space -- Hyperbolic spiral -- Hyperbolic structure -- Hyperbolic tetrahedral-octahedral honeycomb -- Hyperbolic tree -- Hyperbolic triangle -- Hyperbolic trigonometry -- Hyperbolic volume -- Hyperbolization theorem -- Hyperboloid -- Hyperboloid model -- Hyperboloid structure -- Hypercomplex analysis -- Hypercomplex manifold -- Hypercomplex number -- Hypercomputation -- Hypercone -- Hyperconnected space -- Hypercovering -- Hypercube -- Hypercube graph -- Hypercubic honeycomb -- Hypercycle (geometry) -- Hypercyclic operator -- Hyperdeterminant -- Hyperelliptic curve -- Hyperelliptic curve cryptography -- Hyperelliptic surface -- Hyperexponential distribution -- Hyperface -- Hyperfactorial -- Hyperfinite -- Hyperfinite equivalence relation -- Hyperfinite set -- Hyperfinite type II factor -- HyperFun -- Hyperfunction -- Hypergeometric distribution -- Hypergeometric function -- Hypergeometric function of a matrix argument -- Hypergeometric identity -- Hypergraph -- Hypergraph regularity method -- Hypergraph removal lemma -- Hyperharmonic number -- Hyperhomology -- Hyperinteger -- Hyperion (moon) -- Hyperkähler manifold -- Hyperkähler quotient -- HyperLogLog -- Hyperoctahedral group -- Hyperoperation -- Hyperparameter -- Hyperparameter (machine learning) -- Hyperparameter optimization -- Hyperperfect number -- Hyperplane -- Hyperplane at infinity -- Hyperplane section -- Hyperplane separation theorem -- Hyperprior -- Hyperpyramid -- Hyperreal number -- Hyperrectangle -- HyperRogue -- Hypersequent -- Hypersimplex -- Hyperspecial subgroup -- Hyperstability -- Hyperstructure -- Hypersurface -- Hypertopology -- Hypertoric variety -- Hypertranscendental function -- Hypertranscendental number -- Hypertree -- Hypoabelian group -- Hypoalgebra -- Hypocontinuous bilinear map -- Hypocycloid -- Hypoelliptic operator -- Hypoexponential distribution -- Hypograph -- Hypograph (mathematics) -- Hypohamiltonian graph -- Hyponormal operator -- Hypostatic abstraction -- Hypotenuse -- Hypothetical syllogism -- Hypotrochoid -- Hypre -- Hypsometric equation --

Hysteresivity -- Hysteretic model --