| Hasse–Schmidt derivation | 57BVX7YCN8 | definition | open | Wikipedia Hasse–Schmidt derivation, Wikidata Q65042670 |
| Hasse–Weil conjecture | 78M1MPB415 | statement | open | Wikipedia Hasse–Weil zeta function#C28Y |
| Hasse–Weil L-function | CA6GJ07Z56 | definition | open | Wikipedia Glossary of arithmetic and diophantine geometry#5KOB |
| Hasse–Weil zeta function | F36VWG6JXP | definition | open | Wikipedia List of zeta functions#P1M9 |
| Hasse–Weil zeta function | PKAD6Q84MZ | definition | open | Wikipedia Hasse–Weil zeta function, Wikidata Q2372257 |
| Hasse–Weil zeta function | STZF7MYS53 | definition | open | Wikipedia List of things named after André Weil#KB44 |
| Hasse–Weil zeta function | SX6Y0ZCHX3 | definition | open | Wikipedia List of algebraic number theory topics#UT60 |
| Hasse–Witt matrix | 5TFETV0R6W | definition | open | Wikipedia Hasse–Witt matrix, Wikidata Q5680044 |
| Hasse–Witt matrix | P7VP9Y5S28 | definition | open | Wikipedia List of things named after Ernst Witt#GVB2 |
| Hassler Whitney | 7RR0T732Z6 | topic | open | Wikipedia List of people by Erdős number#Q0AZ, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#4TQ1 |
| Hassler Whitney | KJHA14K7RN | topic | out_of_scope (a person, not an item of mathematics) | Wikidata Q742072, nLab Hassler Whitney, Wikipedia Hassler Whitney |
| Hasso Härlen | EHN9KRJ2ZT | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#WCNL |
| Hastie, Trevor | AS728KYWCF | unknown | open | Wikipedia List of statisticians#FQVR |
| hasty generalization | CQD9F2ZWN8 | definition | open | Wikipedia Glossary of logic#T2TI |
| Hasty generalization | PBKFZMKAN3 | definition | open | Wikipedia List of fallacies#GAPH |
| Hasty Pudding cipher | T5F0P5K98P | definition | open | Wikipedia Hasty Pudding cipher, Wikidata Q4040285 |
| HASZ6XZN20 | HASZ6XZN20 | 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 2609.36334#AX1D |
| hat check problem | HXMX40DRC8 | concept | open | applied_combinatorics index/7.4/hat-check-problem |
| Hat matrix | 3F9Y3FQYS6 | definition | open | Wikipedia List of named matrices#EB1T |
| hat matrix | 7KB2YZ992C | definition | open | Wikidata Q5680845, MathWorld ProjectionMatrix, Wikipedia Projection matrix |
| Hat matrix | K9N7P8C01F | definition | open | Wikipedia List of statistics articles#3MS8 |
| Hat operator | VY8PY8CSEK | concept | open | Wikidata Q5680848, MathWorld Hat, Wikipedia Hat notation |
| Hata | BH8EBQTM05 | conjecture | 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 2609.21611#GV5Q |
| HATBTCQE0N | HATBTCQE0N | 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 2610.14278#DIUG |
| Hatch mark | EEG87VPTW4 | definition | open | Wikipedia Hatch mark, Wikidata Q5681049 |
| Hatcher \S2.1 exercise 18 | KMQ9GDAVEM | exercise | open | napkin tex/homology/excision.tex#problem-2 |
| HATDCR3KZ9 | HATDCR3KZ9 | proof | open | open_logic content/set-theory/choice/vitali.tex#proof-2 |
| Hate Crime Statistics Act | 5EPACPXH79 | definition | open | Wikipedia Hate Crime Statistics Act, Wikidata Q5681185 |
| HATPTJRGRF | HATPTJRGRF | 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 2609.35398#65X1 |
| Hatted basis | AXYTW4C69B | 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 2610.12326#9AIU |
| Hattendorff's theorem | PEMCJGGZPE | statement | open | Wikipedia Hattendorff's theorem, Wikidata Q25109625 |
| Hattendorff's Theorem | XNDHE2EZSS | statement | open | Wikipedia Hattendorff's theorem#EMER |
| Hattori–Stong theorem | GCB2F9SB5C | statement | open | Wikipedia Hattori–Stong theorem, Wikidata Q5682202 |
| Hatvan | ZEASGC91Y9 | unknown | open | Wikipedia List of places with numeric names#0WBS |
| Hatvani, István | 5Z53E28P30 | unknown | open | Wikipedia List of Hungarian mathematicians#ZTOB |
| Hatzel graph | 6ERNJC90MM | unknown | open | Wikidata Q3115502, House of Graphs 1150, MathWorld HatzelGraph |
| Hauptmodul | M2T1KMJN34 | unknown | open | Wikipedia Modular curve#NVSP |
| Hauptvermutung | 5MR446RZWP | definition | open | Wikipedia Glossary of algebraic topology#UO98 |
| Hauptvermutung | 7PVWFNKXZK | definition | open | Wikipedia Hauptvermutung, Wikidata Q5682772 |
| Hauptvermutung | TEYC5P2DX8 | definition | open | Wikipedia List of conjectures#36XW |
| Hausdorff | 88RQ4XDWTG | definition | open | Wikipedia Glossary of set theory#T8RE |
| Hausdorff | GTVSBSKP5Z | definition | open | Wikipedia Glossary of general topology#9YWX |
| Hausdorff | Q4FBJW335G | 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 2610.00344#3HAW |
| Hausdorff | RN93Q3BRBF | definition | open | Wikipedia Glossary of real and complex analysis#SIBR |
| Hausdorff Center for Mathematics | 1WN3RJ8R8S | definition | open | Wikipedia Hausdorff Center for Mathematics, Wikidata Q1591067 |
| Hausdorff Center for Mathematics | JGRAJHHEH6 | definition | open | Wikipedia List of things named after Felix Hausdorff#DCGZ |
| Hausdorff completion | KH771WS2V9 | definition | open | Wikipedia List of things named after Felix Hausdorff#WY5R |
| Hausdorff completion | Y25H7EGQXQ | definition | open | Wikipedia Hausdorff completion, Wikidata Q5682818 |
| Hausdorff continuity and uniform convergence | 86ZCP3BYNG | 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 2610.09602#JW9I |
| Hausdorff convergence over all orders | VSN3VBFAMF | 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 2610.09602#D7XE |
| Hausdorff density | KN1J4ZM2PH | definition | open | Wikipedia Hausdorff density, Wikidata Q17021390 |
| Hausdorff dimension | 67QSVTZKCA | definition | open | Wikidata Q565186, MathWorld CapacityDimension, nLab Hausdorff dimension, Wikipedia Hausdorff dimension |
| Hausdorff dimension | R5FKH9Z5K2 | unknown | open | mathlib_overview Analysis > Measures and integral calculus > Hausdorff dimension, Mathlib dimH |
| Hausdorff dimension | WSD25EP7CE | definition | open | Wikipedia List of things named after Felix Hausdorff#TN5K |
| Hausdorff dimension and Frostman's lemma | 6P0SQSRKHP | statement | open | Wikipedia Borel measure#SZ0B |
| Hausdorff dimension of the polynomial lift | QH858QYHHK | 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 2609.22485#7U3D |
| Hausdorff distance | 1E29XA06PB | definition | open | Wikipedia List of general topology topics#OE4C, Wikipedia List of things named after Felix Hausdorff#C5B5 |
| Hausdorff distance | 423B9MTAV9 | definition | open | Wikipedia Hausdorff distance, Wikidata Q1501997 |
| Hausdorff distance | AXCV26PM49 | unknown | open | mathlib_overview Topology > Metric spaces > Hausdorff distance, Mathlib Metric.hausdorffEDist |
| Hausdorff gap | 55A2D7413B | definition | open | Wikipedia List of things named after Felix Hausdorff#DADO |
| Hausdorff gap | S2PRSMR2WK | definition | open | Wikipedia Hausdorff gap, Wikidata Q18348716 |
| Hausdorff maximal principle | FMCX33BWZZ | statement | node (a node has the same Wikidata item as the row) | Wikidata Q738328, nLab Hausdorff maximal principle, Wikipedia Hausdorff maximal principle |
| Hausdorff maximal principle | KWY2EC5VAX | statement | open | Wikipedia List of things named after Felix Hausdorff#OWW0 |
| Hausdorff maximality theorem | 3KGW89V3XW | statement | open | Wikipedia List of axioms#J66M |
| Hausdorff maximality theorem | ZC7YM39ATC | statement | open | Wikipedia List of theorems#1G5Q |
| Hausdorff measure | 27TG1HQFD5 | example | 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 2610.17519#3B70 |
| Hausdorff measure | BWWJ5XTM3D | definition | open | Wikipedia List of things named after Felix Hausdorff#IK96 |
| Hausdorff measure | KJ8WX5C27K | unknown | open | mathlib_overview Analysis > Measures and integral calculus > Hausdorff measure, Mathlib MeasureTheory.Measure.hausdorffMeasure |
| Hausdorff measure | WP5AFSRCDF | definition | open | Wikipedia Hausdorff measure, Wikidata Q1591095 |
| Hausdorff Medal | 5SJS2WSJGS | definition | open | Wikipedia Hausdorff Medal, Wikidata Q41510390 |
| Hausdorff Medal | SCDTTK6RAD | definition | open | Wikipedia List of things named after Felix Hausdorff#ZLFC |
| Hausdorff metric | MH8VQD5ZVZ | 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 2610.19416#JOJU |
| Hausdorff moment problem | SRAC0M15EY | problem | open | Wikipedia List of statistics articles#RQ6E, Wikipedia List of things named after Felix Hausdorff#GNSI |
| Hausdorff moment problem | YZ93M4B26Y | problem | open | Wikipedia Hausdorff moment problem, Wikidata Q5682821 |
| Hausdorff paradox | 23R2TSJ2EN | statement | open | Wikidata Q1959890, ProofWiki Hausdorff_Paradox, Wikipedia Hausdorff paradox |
| Hausdorff paradox | PCPYAXN9Q8 | statement | open | Wikipedia List of integration and measure theory topics#5DDO, Wikipedia List of things named after Felix Hausdorff#Y3XA |
| Hausdorff space | D4FKCK28GS | definition | node (a node has the same Wikidata item as the row) | Wikidata Q326908, MathWorld T2-Space, nLab Hausdorff space, ProofWiki Definition:Hausdorff_Space, Wikipedia Hausdorff space |
| Hausdorff space | GT65C6XAHE | unknown | open | mathlib_overview Topology > General topology > Hausdorff space, Mathlib T2Space |
| Hausdorff space | PXC5Y7X585 | definition | open | Wikipedia List of general topology topics#Y349, Wikipedia List of things named after Felix Hausdorff#2G1O |
| Hausdorff's Paradox (in $\ZFC$) | J3EVPVM6FC | statement | open | open_logic content/set-theory/choice/vitali.tex#thm-1 |
| Hausdorff-Young inequality | Q8MBTE6GKF | statement | open | Wikipedia List of theorems#RQPS |
| Hausdorffness and metrizability coincide for finite gauge topologies | W5MWZVXY34 | 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 2609.20514#0DYX |
| Hausdorff–Young inequality | 41QW1QTKN0 | statement | open | Wikipedia Lp space#SJV0 |
| Hausdorff–Young inequality | 4Z7PMWJ7X9 | statement | open | Wikipedia List of inequalities#YWB8, Wikipedia List of things named after Felix Hausdorff#3888 |
| Hausdorff–Young inequality | 8K8ZYTQBRC | statement | open | Wikipedia List of probabilistic proofs of non-probabilistic theorems#4BM8 |
| Hausdorff–Young inequality | WABD5PT9B6 | statement | open | Wikipedia Hausdorff–Young inequality, Wikidata Q5682823 |
| Hausdorff–Young inequality | WQ38QKG598 | statement | open | Wikipedia Riesz–Thorin theorem#WG12 |
| Hausman specification test | S9N6JZ00EK | definition | open | Wikipedia List of statistics articles#8OY0 |
| Hautus lemma | B1R6TP6BTV | statement | open | Wikipedia List of lemmas#7ONY |
| Hautus lemma | CF39ARQKRB | statement | open | Wikipedia Hautus lemma, Wikidata Q17021408 |
| Hautus Lemma for controllability | CN8F0WTX8P | statement | open | Wikipedia Hautus lemma#JB4V |
| Hautus Lemma for detectability | CQ45DZMTJ3 | statement | open | Wikipedia Hautus lemma#ARIM |
| Hautus Lemma for observability | 55QWDEAD8D | statement | open | Wikipedia Hautus lemma#028L |
| Hautus Lemma for stabilizability | F7KTBKJH3N | statement | open | Wikipedia Hautus lemma#EOOS |
| HAV19VWGAH | HAV19VWGAH | proof | open | open_logic content/computability/computability-theory/ce-closed-cup-cap.tex#proof-1 |
| HAVAL | BNEPHJ1NKG | definition | open | Wikipedia List of algebraic coding theory topics#SQEE |
| HAVAL | Q6NHGKKW3J | definition | open | Wikipedia HAVAL, Wikidata Q675690 |
| Havelock's law | SX6AVJFE8N | statement | open | Wikipedia Thomas Henry Havelock#NEQZ |
| Havel–Hakimi algorithm | MFTXDRQ556 | definition | open | Wikipedia Havel–Hakimi algorithm, Wikidata Q18207665 |
| Haven | 391KM90YVN | definition | open | Wikipedia Haven (graph theory), Wikidata Q5683658 |