| Hilbert–Smith conjecture | BFA02TZ0WH | conjecture | open | Wikipedia List of unsolved problems in mathematics#5TRY |
| Hilbert–Speiser theorem | 5V5VMWZ735 | statement | open | mathlib_1000 Q3527093, Wikidata Q3527093, thousand_plus Q3527093, Wikipedia Hilbert–Speiser theorem |
| Hilbert–Speiser theorem | VBFYZNQ5QB | statement | open | Wikipedia List of theorems#BDPG |
| Hilbert–Waring theorem | CQ9KMG8JTW | conjecture | open | Wikipedia List of theorems#TMN7 |
| Hilbrand J. Groenewold | VC2R1NMQ50 | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q5761267, nLab Hilbrand Groenewold |
| Hilda Assiyatun | 5BFK3XZM20 | topic | open | Wikipedia List of people by Erdős number#K59C |
| Hilda Assiyatun | GX7EBG4RX5 | topic | open | Wikipedia Hilda Assiyatun, Wikidata Q102254531 |
| Hilda Geiringer | BMDW93N0JV | topic | open | Wikipedia Hilda Geiringer, Wikidata Q168267 |
| Hilda Geiringer | H3DYHJYYR1 | topic | open | Wikipedia List of people by Erdős number#KKCR |
| Hilda Geiringer | JDHZP0RCJX | topic | open | Wikipedia List of Jewish mathematicians#RUHY |
| Hilda Geiringer | MK4NH7P2N3 | topic | open | Wikipedia List of women logicians#9P7Y |
| Hilda Mary Woods | TW33J022C3 | topic | open | Wikipedia Hilda Mary Woods, Wikidata Q15429222 |
| Hilda Phoebe Hudson | JDKAGFQEQ1 | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#0OIV |
| Hilda Pollaczek-Geiringer | T6P0W71JE8 | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#6JPO |
| Hildegard of Bingen | MD4VV73ZWB | unknown | open | Wikipedia List of cryptographers#6ZXT |
| Hildegard Rothe-Ille | 85DDCCMP2X | topic | open | Wikipedia Hildegard Rothe-Ille, Wikidata Q1618366 |
| Hildegarde Kneeland | MJ53N7SSGS | unknown | open | Wikipedia List of fellows of the American Statistical Association#2FQV |
| Hildreth–Lu estimation | J6FKCX4BMK | definition | open | Wikipedia Hildreth–Lu estimation, Wikidata Q25303692 |
| Hill cipher | S2BX2QKWNF | definition | open | Wikipedia Hill cipher, Wikidata Q2454939 |
| Hill climbing | FE7W6Q0W0B | definition | open | Wikipedia List of algorithm general topics#6R08 |
| Hill climbing | PESG5XECDS | definition | open | Wikipedia Hill climbing, Wikidata Q820272 |
| Hill differential equation | HHJ077T8R4 | concept | open | Wikidata Q1169848, EoM Hill_equation, MathWorld HillsDifferentialEquation, Wikipedia Hill differential equation |
| Hill differential equation | PEBSS5WJ59 | definition | open | Wikipedia List of named differential equations#SHVX |
| Hill equation | J8789R30AS | definition | open | Wikipedia Hill equation (biochemistry), Wikidata Q2554020 |
| Hill sphere | F4S5YVENHT | definition | open | Wikipedia Hill sphere, Wikidata Q498792 |
| Hill sphere | MMV6J0X5VA | definition | open | Wikipedia List of mathematical topics in classical mechanics#WW1F |
| Hill tetrahedron | NEBD0DZ3MC | definition | open | Wikipedia Hill tetrahedron, Wikidata Q5762456 |
| Hill's formula at every class of every word | QATBYVE166 | 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 2610.18512#N49M |
| Hill's formula at the two-run classes | FH1AHPJK3E | 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 2610.18512#AK5K |
| Hill's muscle model | 3Z8XT37K2H | definition | open | Wikipedia Hill's muscle model, Wikidata Q10331394 |
| Hill's spherical vortex | M674GC1S0Q | definition | open | Wikipedia Hill's spherical vortex, Wikidata Q108280743 |
| Hill, Austin Bradford | 4BDFECR051 | unknown | open | Wikipedia List of statisticians#1LY0 |
| Hill, Joseph Adna | 7G7RQTADKB | unknown | open | Wikipedia List of statisticians#R8KT |
| Hille's theorem | 4SWHK1JG1P | unknown | open | Wikipedia Bochner integral#96YG |
| Hille-Yosida | 5H86DAGFGT | 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 2610.05391#BFLY |
| Hille-Yosida theorem for contraction semigroups | Q93BPSMT9W | statement | open | Wikipedia Hille–Yosida theorem#BOHX |
| Hillel Furstenberg | AM10G39VXA | topic | out_of_scope (a person, not an item of mathematics) | Wikidata Q556862, ProofWiki Mathematician:Hillel_Furstenberg, Wikipedia Hillel Furstenberg |
| Hillel Furstenberg | MYMFW9HH19 | topic | open | Wikipedia List of Jewish mathematicians#YVUP |
| Hillel Furstenberg | WP5ASPPV60 | topic | open | Wikipedia List of people by Erdős number#QIF8, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#V6GE, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#ZMO2 |
| Hillen-Loving-Wu | CHJGQ7WST5 | 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 2610.13347#GV7U |
| Hille–Yosida theorem | C963SB69V6 | statement | open | mathlib_1000 Q974405, Wikidata Q974405, thousand_plus Q974405, Wikipedia Hille–Yosida theorem |
| Hille–Yosida theorem | P4VR6C96BT | statement | open | Wikipedia List of theorems#S5KA |
| Hill–Beck land division problem | 7RRMRTPGP0 | problem | open | Wikipedia Hill–Beck land division problem, Wikidata Q18349483 |
| Hilton's theorem | ZXKNR3GCXC | statement | open | Wikipedia Hilton's theorem, Wikidata Q5764405 |
| Hilton-Milner theorem | YGF85EZY4G | unknown | open | Wikipedia Erdős–Ko–Rado theorem#JX31 |
| Hilton–Milnor theorem | AJJPS0QF9W | statement | open | Wikipedia List of theorems#QQCU |
| Hilton–Milnor theorem | ATS6E9GA5Z | definition | open | Wikipedia Glossary of algebraic topology#4QVR |
| Himalayan salt | 2FSDKH5142 | unknown | open | Wikipedia List of common misconceptions about science, technology, and mathematics#ZAC1 |
| Himmelblau's function | KJ4Z2M3NZE | definition | open | Wikipedia Himmelblau's function, Wikidata Q3075200 |
| Hindcast | M67HMVHRAZ | unknown | open | Wikipedia Backtesting#56FY |
| Hindley–Milner type inference algorithm | B0E6NR6964 | definition | open | Wikipedia List of algorithms#KF7J |
| Hindley–Milner type system | TAKS84NZVC | definition | open | Wikipedia Hindley–Milner type system, Wikidata Q200996 |
| Hindman's finite sums theorem | 9ACQHCRA43 | 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 2609.37159#K6ZX |
| Hindman's theorem | 122GXDQKPH | unknown | open | mathlib_overview Combinatorics > Ramsey theory > Hindman's theorem, Mathlib Hindman.FS_partition_regular |
| Hindman's theorem | ABKKE20FV3 | statement | open | Wikipedia IP set#5P0W |
| Hindman's theorem | P1MQ0H73P3 | definition | open | Wikipedia List of theorems#HMDJ |
| Hindmarsh–Rose model | W8NVMDPKE7 | definition | open | Wikipedia Hindmarsh–Rose model, Wikidata Q3859862 |
| Hindsight bias | F0RKCPAQAH | unknown | open | Wikipedia List of cognitive biases#HR3B |
| Hindu apologetics | K4G3VPHZE6 | unknown | open | Wikipedia Apologetics#JSBP |
| Hindu units of time | 82C9ZQQNBX | definition | open | Wikipedia Hindu units of time, Wikidata Q3089481 |
| Hindu-Arabic numerals | 12YCSWA824 | definition | open | Wikipedia List of common misconceptions about science, technology, and mathematics#XJMI |
| Hinduism and religious pluralism | KQ9F8BBFMR | unknown | open | Wikipedia Religious pluralism#TCGG |
| Hindu–Arabic numeral system | H1GQVKVPZE | definition | open | Wikipedia Hindu–Arabic numeral system, Wikidata Q3059346 |
| Hinge loss | DC6K0H8KH4 | definition | open | Wikipedia Hinge loss, Wikidata Q5767098 |
| Hinge theorem | B8WKKSQTDK | statement | open | Wikipedia List of inequalities#53LI |
| Hinge theorem | KJRTXP9V9C | statement | open | Wikipedia List of theorems#1H77 |
| hinge theorem | R3FRXZGCVR | statement | open | mathlib_1000 Q2607007, Wikidata Q2607007, thousand_plus Q2607007, Wikipedia Hinge theorem, MathWorld HingeTheorem |
| Hinged dissection | E24KDHDBXW | definition | open | Wikipedia Hinged dissection, Wikidata Q17029894 |
| hinged end of beam | Z1FT8XCAEX | concept | open | lebl_diffyqs index/3.2/hinged-end-of-beam |
| Hinke Osinga | 4SG46361D4 | topic | open | Wikipedia Hinke Osinga, Wikidata Q21155631 |
| Hinke Osinga | QKH2M3B0YT | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#UP7J |
| Hinkley, David V. | H5G9W6AYFZ | topic | open | Wikipedia List of statisticians#E9T4 |
| Hinterlaces | WGQ0Q9PSYD | unknown | open | Wikipedia Opinion polls in Venezuela#V9QN |
| Hintikka set | 55AZ81KXBK | definition | open | Wikipedia Hintikka set, Wikidata Q9388531 |
| Hipparchus | DZNKMW33ZW | topic | out_of_scope (a person, not an item of mathematics) | Wikidata Q159905, ProofWiki Mathematician:Hipparchus_of_Nicaea, Wikipedia Hipparchus |
| Hipparchus | J444Y1MYY9 | topic | open | Wikipedia List of Greek mathematicians#4K54 |
| Hippasus | 6GFE97APNA | topic | open | Wikipedia List of Greek mathematicians#YDRV |
| Hippasus | FVH0C7T0CR | topic | out_of_scope (a person, not an item of mathematics) | Wikidata Q298860, ProofWiki Mathematician:Hippasus_of_Metapontum, Wikipedia Hippasus |
| Hippias | 2AHKRC5WB3 | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q210573, ProofWiki Mathematician:Hippias_of_Elis |
| Hippias | 49BXTMCSW9 | unknown | open | Wikipedia List of Greek mathematicians#HU1E |
| Hippocrates of Chios | AK0D98AMNZ | topic | open | Wikipedia List of geometers#PCC4 |
| Hippocrates of Chios | J519H554ES | topic | out_of_scope (a person, not an item of mathematics) | Wikidata Q312629, ProofWiki Mathematician:Hippocrates_of_Chios, Wikipedia Hippocrates of Chios |
| Hippocrates of Chios | KZEVSREEFG | topic | open | Wikipedia List of Greek mathematicians#17U3 |
| Hippocratic Oath | YYK5DTZWH7 | unknown | open | Wikipedia List of common misconceptions about science, technology, and mathematics#ZHRF |
| hippopede | B1ZM9G93JT | concept | open | Wikidata Q1205428, MathWorld Hippopede, Wikipedia Hippopede |
| Hippopede | TECB3FSPKN | definition | open | Wikipedia List of mathematical shapes#K5SE, Wikipedia List of curves#XOXK |
| Hipposudoric acid | GSGBVZFE4G | unknown | open | Wikipedia List of common misconceptions about science, technology, and mathematics#WTOF |
| Hiptmair–Xu preconditioner | K72AZJ08CK | definition | open | Wikipedia Hiptmair–Xu preconditioner, Wikidata Q104843807 |
| Hiraku Nakajima | EJX8D4VY1T | topic | out_of_scope (a person, not an item of mathematics) | Wikidata Q371515, nLab Hiraku Nakajima, Wikipedia Hiraku Nakajima |
| Hiraku Nakajima | QW10R2VA4Q | topic | open | Wikipedia List of geometers#K0Y2 |
| Hiraku Nakajima | Y3KFVABATM | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#U9AM |
| Hiroaki Terao | FRFA43FS2W | topic | open | Wikipedia Hiroaki Terao, Wikidata Q23062404 |
| Hironaka | G9KM56CHQK | definition | open | Wikipedia Glossary of commutative algebra#CREB |
| Hironaka theorem | 74PXVCYQ9V | conjecture | open | Wikipedia List of theorems#CN24 |
| Hironaka's example | QE04ZYNAST | definition | open | Wikipedia Hironaka's example, Wikidata Q17098022 |
| Hironaka's theorem | PWFFKQMJHE | statement | open | Wikipedia Complex algebraic variety#L7OZ |
| Hironari Miyazawa | Y68K37J8PK | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q563068, nLab Hironari Miyazawa |
| Hiroshi Haruki | MZPABY3BS9 | unknown | open | Wikipedia List of people by Erdős number#LYFS |
| Hiroshi Iritani | BVXSBP89B0 | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#D7SV |
| Hiroshi Kunita | 1YQ3YMQPWZ | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#BGJH |