| Helen Wilson | AXNWT581FZ | topic | open | Wikipedia Helen Wilson (mathematician), Wikidata Q28199990 |
| Helena C. Kraemer | RQ033AWVCS | topic | open | Wikipedia List of fellows of the American Statistical Association#MEJY |
| Helena Chmura Kraemer | VFNYAK2R9W | topic | open | Wikipedia Helena Chmura Kraemer, Wikidata Q56677294 |
| Helena J. Nussenzveig Lopes | NYJZAF6K1F | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#HZ5W |
| Helena Rasiowa | V6BPD441FJ | topic | open | Wikipedia List of people by Erdős number#L3ZL |
| Helena Rasiowa | XR540DG7FC | topic | open | Wikipedia List of logicians#02HT, Wikipedia List of women logicians#YVXH |
| Helena Rasiowa | Y2XPBZDRSP | topic | open | Wikipedia Helena Rasiowa, Wikidata Q455501 |
| Helena Wong | H4EZHSQST5 | unknown | open | Wikipedia List of University of California, Los Angeles people#RVEA |
| Helene Stähelin | SV1NFYAN94 | topic | open | Wikipedia Helene Stähelin, Wikidata Q30583472 |
| Helffer–Sjöstrand formula | 610NNQT1H3 | statement | record (an item of a paper that no node asks for yet. The record keeps its edges in the record plane (corpus arxiv AX8.6)) | arXiv 2609.25301#5OP0 |
| Helffer–Sjöstrand formula | R4WMS4GZ15 | statement | open | Wikipedia Helffer–Sjöstrand formula, Wikidata Q127793712 |
| Helga Baum | 4ZY4YZAFC1 | topic | out_of_scope (a person, not an item of mathematics) | Wikidata Q1602142, nLab Helga Baum, Wikipedia Helga Baum |
| Helgason's inversion formula | BZ08V4ZMQ6 | statement | open | Wikipedia Funk transform#4J24 |
| Helge Holden | B00G9JCDXP | topic | open | Wikipedia List of people by Erdős number#SLFY |
| Helge Holden | K0BDW55F9D | topic | open | Wikipedia Helge Holden, Wikidata Q3378092 |
| Helge Tverberg | KZWK6ZAAPR | topic | open | Wikipedia List of people by Erdős number#9M4F |
| Helge Tverberg | SZDKTH0YRC | topic | open | Wikipedia Helge Tverberg, Wikidata Q1602410 |
| Helge von Koch | JN6R0VQN3X | topic | open | Wikipedia Helge von Koch, Wikidata Q313872 |
| Helge von Koch | MVNBPAWBFD | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#AF2R, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#X6BW |
| Helical repetition code $H(a,-b)$ | SVE4AS6A8Z | definition | record (an item of a paper that no node asks for yet. The record keeps its edges in the record plane (corpus arxiv AX8.6)) | arXiv 2610.04834#V9S7 |
| Helical symmetry | Y70KS0TJ55 | unknown | open | Wikipedia Symmetry (geometry)#L1VO |
| helicoid | 8FYMZK3KRM | definition | open | Wikidata Q1072483, MathWorld Helicoid, Wikipedia Helicoid |
| Helicoid | DVPT51NRDW | definition | open | Wikipedia List of mathematical shapes#T3DM, Wikipedia List of surfaces#FM0Z, Wikipedia List of surfaces#M6JS |
| Heliocentric universe | H1WMBB0KT6 | unknown | open | Wikipedia List of superseded scientific theories#8GU4 |
| heliocentrism | 87KR3Q7SWD | definition | open | Wikidata Q103983, ProofWiki Definition:Heliocentric_Model |
| Heliodorus of Larissa | GVFTQYQCCC | unknown | open | Wikipedia List of Greek mathematicians#6X5B |
| Helioseismology | BAE16023FJ | topic | open | Wikipedia Helioseismology, Wikidata Q1068381 |
| Heliospheric current sheet | D3RTKA6ABV | definition | open | Wikipedia Heliospheric current sheet, Wikidata Q619081 |
| helix | 1JDRKDTJ6K | concept | open | hott_book index/7.1.2/helix |
| helix | N5BKZTQPJ4 | definition | open | Wikidata Q201717, MathWorld Helix, Wikipedia Helix |
| Helix | X0BE404X92 | definition | open | Wikipedia List of mathematical shapes#GX05, Wikipedia List of curves#LJ6L |
| Helix (cipher) | BRWNCWGKC4 | unknown | open | Wikipedia Phelix#FU99 |
| Hell's Half Acre (Wyoming) | 9EJVVQQ9NF | unknown | open | Wikipedia List of places with numeric names#FLIG |
| Hell, Miksa | HTSJ7TREFS | unknown | open | Wikipedia List of Hungarian mathematicians#VRRC |
| Hellas Secunda | QDVSPME5ZK | unknown | open | Wikipedia List of places with numeric names#PWLU |
| Hellenic Mathematical Society | 2D7W8QZ5NF | definition | open | Wikipedia Hellenic Mathematical Society, Wikidata Q5707247 |
| Hellenic Mathematical Society | HKFP523RN1 | definition | open | Wikipedia List of mathematical societies#C1NY |
| Hellenistic mathematics | H9F5MAXDGN | unknown | open | Wikipedia Ancient Greek mathematics#2I7Y |
| Helliar-Liu | T9390MXP62 | statement | record (an item of a paper that no node asks for yet. The record keeps its edges in the record plane (corpus arxiv AX8.6)) | arXiv 2609.22393#OHZD |
| Hellin's law | H1K3MMGGPQ | topic | open | Wikipedia Hellin's law, Wikidata Q1035152 |
| Hellin's law | Q11Q69YE2K | topic | open | Wikipedia List of statistics articles#BWMT |
| Hellinger distance | 49GAKF6WNV | definition | open | Wikipedia Hellinger distance, Wikidata Q3030678 |
| Hellinger distance | VHD5G4DA80 | definition | open | Wikipedia List of statistics articles#6UXJ, Wikipedia List of probability topics#9E9K |
| Hellinger integral | 2VBBGT65ER | definition | open | Wikipedia Hellinger integral, Wikidata Q5707572 |
| Hellinger integrals and the flattening profile | NZPMZX71H7 | definition | record (an item of a paper that no node asks for yet. The record keeps its edges in the record plane (corpus arxiv AX8.6)) | arXiv 2609.27765#L5XT |
| Hellinger–Toeplitz theorem | FS9019JMN8 | unknown | open | Wikipedia List of theorems#2575 |
| Hellinger–Toeplitz theorem | 9CVDCG7ZED | statement | open | mathlib_1000 Q1472120, Mathlib LinearMap.IsSymmetric.continuous, Wikidata Q1472120, thousand_plus Q1472120, Wikipedia Hellinger–Toeplitz theorem, Wikipedia Hellinger–Toeplitz theorem |
| Hellman-Feynman formula | H58YPMJQYG | statement | record (an item of a paper that no node asks for yet. The record keeps its edges in the record plane (corpus arxiv AX8.6)) | arXiv 2610.17815#CO3C |
| Hellmann-Feynman | JFARR76XKR | statement | record (an item of a paper that no node asks for yet. The record keeps its edges in the record plane (corpus arxiv AX8.6)) | arXiv 2610.17139#53A1 |
| Hellmann–Feynman theorem | ESH8ZVQDRS | statement | open | mathlib_1000 Q906809, Wikidata Q906809, thousand_plus Q906809, Wikipedia Hellmann–Feynman theorem |
| Hellmann–Feynman theorem | NAN8BG4Y0C | statement | open | Wikipedia List of theorems#GL3S |
| Hellmann–Feynman theorem for time-dependent wavefunctions | EBK2J7RVQ9 | statement | open | Wikipedia Hellmann–Feynman theorem#BEJH |
| Hellmann–Feynman theorems | 9HHZPVMEHS | statement | open | Wikipedia Perturbation theory (quantum mechanics)#P3XM |
| Hellmut Baumgärtel | 50Y6HFAGE1 | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q89022649, nLab Hellmut Baumgärtel |
| Hellmuth Kneser | 5DF8NRP40F | topic | open | Wikipedia List of mathematicians born in the 19th century#48B1 |
| Hellmuth Kneser | C0MDNY477C | topic | open | Wikipedia Hellmuth Kneser, Wikidata Q77517 |
| Hellmuth Kneser | ENVSAJ891Y | topic | open | Wikipedia List of German mathematicians#Q5SS |
| Hellmuth Stachel | QKH45CX6AC | topic | open | Wikipedia Hellmuth Stachel, Wikidata Q86416 |
| Hells Halfacre, Kentucky | R2STTRA24N | unknown | open | Wikipedia List of places with numeric names#YW1U |
| Helly family | 4YRZ0VDEJ2 | definition | open | Wikipedia Helly family, Wikidata Q1603101 |
| Helly family | RN38G21B4M | definition | open | Wikipedia List of graph theory topics#PCXM |
| Helly metric | E172JR8EMF | definition | open | Wikipedia Helly metric, Wikidata Q5709140 |
| Helly space | 79NG5247YP | definition | open | Wikipedia Helly space, Wikidata Q5709145 |
| Helly space | 8HGP2QFQZS | definition | open | Wikipedia List of topologies#FKA5 |
| Helly's selection theorem | 7B2R8S9TB0 | statement | open | Wikipedia List of theorems#0JN6 |
| Helly's selection theorem | AX5RJR4JMD | statement | open | mathlib_1000 Q3984017, Wikidata Q3984017, thousand_plus Q3984017, Wikipedia Helly's selection theorem |
| Helly's theorem | 2E5241H3Q4 | statement | open | Wikipedia List of theorems#JWY5 |
| Helly's theorem | H5KVPPRPZD | statement | open | arXiv 2609.37237#Q2ET, mathlib_1000 Q1632433, Mathlib Convex.helly_theorem, Wikidata Q1632433, thousand_plus Q1632433, Wikipedia Helly's theorem, MathWorld HellysTheorem |
| Helly's theorem | YAPP0J4TRH | statement | open | Wikipedia List of convexity topics#87F0 |
| Helly–Bray theorem | 4K95CX8D7E | statement | open | Wikipedia List of theorems#HS7N |
| Helly–Bray theorem | XQDCPHD87T | statement | open | Wikipedia List of probability topics#D44L |
| Helly–Bray theorem | XRA4WZ6MV6 | statement | open | mathlib_1000 Q5709171, Wikidata Q5709171, thousand_plus Q5709171, Wikipedia Helly–Bray theorem |
| Helm graph | 3T31M4A096 | unknown | open | Wikipedia List of graphs#LZTA |
| Helmert transformation | EXCWMRTVG1 | definition | open | Wikipedia Helmert transformation, Wikidata Q360886 |
| Helmert, Friedrich Robert | 6SFBTK2VEF | unknown | open | Wikipedia List of statisticians#YXHL |
| Helmert–Wolf blocking | 48HT297JPS | definition | open | Wikipedia Helmert–Wolf blocking, Wikidata Q5709282 |
| Helmert–Wolf blocking | AR1Q4W85Z3 | definition | open | Wikipedia List of statistics articles#QTIC |
| Helmholtz decomposition | 84F1A7XB36 | definition | open | Wikipedia List of multivariable calculus topics#ICAJ |
| Helmholtz decomposition | PFPY4T0EG8 | definition | open | Wikidata Q1153588, MathWorld HelmholtzsTheorem, ProofWiki Helmholtz's_Theorem, Wikipedia Helmholtz decomposition |
| Helmholtz equation | H7GPN1MPR3 | definition | open | Wikipedia List of named differential equations#ODI5 |
| Helmholtz equation | ZQXBEJE7XR | concept | open | Wikidata Q860615, EoM Helmholtz_equation, MathWorld HelmholtzDifferentialEquation, Wikipedia Helmholtz equation |
| Helmholtz free energy | AES2GYDYHF | definition | open | Wikipedia Helmholtz free energy, Wikidata Q865821 |
| Helmholtz machine | WHBJJESH2K | definition | open | Wikipedia Unsupervised learning#UCJ8 |
| Helmholtz theorem | CWTEG14FJB | statement | open | mathlib_1000 Q5709377, Wikidata Q5709377, thousand_plus Q5709377, Wikipedia Helmholtz theorem (classical mechanics) |
| Helmholtz theorem (classical mechanics) | E0NE9CZCAE | statement | open | Wikipedia List of theorems#CE6Y |
| Helmholtz's theorem | HR1ZJVP756 | statement | open | Wikipedia Stokes' theorem#KV27 |
| Helmholtz's theorems | F8GAVTTRBV | statement | open | Wikipedia List of theorems#IHJ6 |
| Helmholtz's theorems | SPJGP8TVV6 | statement | open | mathlib_1000 Q985009, Wikidata Q985009, thousand_plus Q985009, Wikipedia Helmholtz's theorems |
| Helmut Grunsky | N9HJH22B5S | topic | open | Wikipedia List of cryptographers#XN3R |
| Helmut Grunsky | PACXHYR80T | topic | open | Wikipedia Helmut Grunsky, Wikidata Q102169 |
| Helmut H. Schaefer | GM4C616J52 | topic | open | Wikipedia List of German mathematicians#DN33 |
| Helmut H. Schaefer | M3ZQACZ9T1 | topic | open | Wikipedia Helmut H. Schaefer, Wikidata Q89354 |
| Helmut Hasse | 465GCP6Y6M | topic | open | Wikipedia List of people by Erdős number#VYYZ, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#3Y06, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#DT6O, Wikipedia List of German mathematicians#P84E |
| Helmut Hasse | FRC22K8F3M | topic | out_of_scope (a person, not an item of mathematics) | Wikidata Q61768, nLab Helmut Hasse, Wikipedia Helmut Hasse |
| Helmut Hasse | J7GG6J37EW | topic | open | Wikipedia List of geometers#I7T7 |
| Helmut Hasse | M7RQ01TRR9 | topic | open | Wikipedia List of mathematicians born in the 19th century#PDFF |
| Helmut Hofer | T9NR8V3Y0G | topic | out_of_scope (a person, not an item of mathematics) | Wikidata Q91509, nLab Helmut Hofer, Wikipedia Helmut Hofer |
| Helmut Hofer | Z23TWZHAQB | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#18TM, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#6FVH |
| Helmut Koch | PTGCQCCHDE | topic | open | Wikipedia Helmut Koch, Wikidata Q1514441 |
| Helmut Maier | 3GS8DTCGS0 | topic | open | Wikipedia Helmut Maier, Wikidata Q5709706 |