| Oded Goldreich | S0X7YEEV09 | unknown | open | Wikipedia List of people by Erdős number#DFOS, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#XUSG |
| Oded Regev | 4F9XGGF3TK | topic | open | Wikipedia List of cryptographers#JVVC |
| Oded Regev | M8MN8V53DZ | topic | open | Wikipedia List of people by Erdős number#DLUC, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#JEDM |
| Oded Regev | R0DSTD61N2 | topic | open | Wikipedia Oded Regev (computer scientist), Wikidata Q64768843 |
| Oded Schramm | 93KAHMD35W | topic | open | Wikipedia Oded Schramm, Wikidata Q923813 |
| Oded Schramm | 9QXMB08TRQ | topic | open | Wikipedia List of Jewish mathematicians#EGPW |
| Oded Schramm | K754F1FNQ3 | topic | open | Wikipedia List of people by Erdős number#BQUA, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#467X |
| Oded Schramm | MEY6G52RSH | topic | open | Wikipedia List of mathematical probabilists#AZVR |
| Odette Mongeaud-Devisme | 1CWEK89A00 | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#G8WR |
| Odile Favaron | NYPJGEEDTB | topic | open | Wikipedia List of people by Erdős number#HZLM |
| Odile Favaron | WX9JQ60247 | topic | open | Wikipedia Odile Favaron, Wikidata Q69715520 |
| odious number | C8Q16S6EDQ | definition | open | Wikidata Q25303606, MathWorld OdiousNumber, OEIS A000069, Wikipedia Odious number |
| Odlyzko 1988 | 87QRNAAPZ4 | 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 2610.11047#VB9H |
| Odlyzko–Schönhage algorithm | 2581M0B8AB | unknown | open | Wikipedia List of algorithms#R3SL |
| Odlyzko–Schönhage algorithm | 94ZP0D4WE8 | definition | open | Wikipedia Odlyzko–Schönhage algorithm, Wikidata Q2515396 |
| Odo Van Maelcote | S65KDMT1QQ | topic | open | Wikipedia Odo Van Maelcote, Wikidata Q3349320 |
| ODoH | PCGPYSYQTH | unknown | open | Wikipedia DNS over HTTPS#8HSP |
| OEIS | 6QD3HAGKSC | definition | open | Wikipedia List of mathematical discoveries by artificial intelligence#ZJPV |
| Oenopides | 18KWMNYB7Z | unknown | open | Wikipedia List of Greek mathematicians#CF0J |
| Oenopides | B11Z4ZY36N | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q282830, ProofWiki Mathematician:Oenopides_of_Chios |
| oersted | H4RABE2YQ9 | definition | open | Wikidata Q844976, ProofWiki Definition:Oersted |
| Oesterl\'e 1984 | S9E9VXV1KC | 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 2609.27751#AFNC |
| of finite type | C1JVR0TF0J | definition | open | Wikipedia Glossary of algebraic topology#IHRD |
| of the form | RWH1AHMAGP | concept | open | Wikidata Q7078836, MathWorld OftheForm, Wikipedia Of the form |
| Ofelia Teresa Alas | FGVCCNDG4G | topic | open | Wikipedia Ofelia Teresa Alas, Wikidata Q102175732 |
| Ofer Azar | CG4RAJKJYW | unknown | open | Wikipedia List of people by Erdős number#RKZ5 |
| Ofer Gabber | D4DYT5VE9S | unknown | open | Wikipedia List of Jewish mathematicians#FWK9 |
| Ofer Gabber | NTEFK4HP44 | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q1747123, nLab Ofer Gabber |
| Ofer Gabber | R69HFB6CAH | unknown | open | Wikipedia List of people by Erdős number#SHBK, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#WLK9 |
| Ofer Zeitouni | 9SF1P8VN2H | topic | open | Wikipedia List of mathematical probabilists#U398 |
| Ofer Zeitouni | 9ZTSW2Q1GN | topic | open | Wikipedia Ofer Zeitouni, Wikidata Q6567589 |
| Ofer Zeitouni | AG29FYWWHV | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#1KCW |
| Off-diagonal estimates on spatial supports | 4W5NR6DQJG | 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 2609.21949#38WV |
| Off-diagonal estimates on temporal supports | 5HTWAR9A60 | 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 2609.21949#YO1T |
| Off-nominal FRS approximation | ARKAQ386W2 | problem | 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 2203.10220#0OCA |
| Off-the-Record Messaging protocol | 1RSXGD5MK3 | definition | open | Wikipedia Off-the-Record Messaging protocol, Wikidata Q512063 |
| Offered load | 6P9APDN90M | definition | open | Wikipedia Offered load, Wikidata Q7079081 |
| Office for National Statistics | WRDSZ9DW3R | definition | open | Wikipedia Office for National Statistics, Wikidata Q1334971 |
| Office for Statistics Regulation | FBD6C8W27E | unknown | open | Wikipedia UK Statistics Authority#E9JL |
| Office of the Chief Actuary | V8DMTTY031 | definition | open | Wikipedia Office of the Chief Actuary, Wikidata Q16934370 |
| Official poverty measure | 9S5DXRJ1NT | unknown | open | Wikipedia United States census#J1G8 |
| Official statistics | 1BJ4DBQGY9 | definition | open | Wikipedia Official statistics, Wikidata Q7079603 |
| Official statistics | DBJZM4VSFW | definition | open | Wikipedia List of statistics articles#6TZA |
| Offline private key protocol | NGYSS7D3HN | definition | open | Wikipedia Offline private key protocol, Wikidata Q7079639 |
| Offset Cohen projection and degrees | 3KFDDWC9E9 | 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 2609.32078#7CH0 |
| Offset envelope class | 3BJ7HWEEB4 | 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 2609.20687#I4O4 |
| Offset filtration | DTHM637W5J | definition | open | Wikipedia Offset filtration, Wikidata Q117063051 |
| Offset logarithmic integral | BW961E7K13 | unknown | open | Wikipedia Logarithmic integral function#MIOB |
| Offset logarithmic integral | VVW3A3P87R | definition | open | Wikipedia List of mathematical abbreviations#S7T1 |
| Ofra Magidor | S7A3CJZX6X | unknown | open | Wikipedia List of women logicians#IRF1 |
| Ogawa integral | 6TQ13W6D0F | definition | open | Wikipedia Ogawa integral, Wikidata Q119941552 |
| Ogburn, William Fielding | 1N6D52XRCS | unknown | open | Wikipedia List of statisticians#CIXK |
| Ogden hyperelastic model | EVAS0ZSG8A | definition | open | Wikipedia Ogden hyperelastic model, Wikidata Q7079901 |
| Ogden tables | KGJZNV36R2 | definition | open | Wikipedia Ogden tables, Wikidata Q7079955 |
| Ogden tables | ZDN6CFT0K0 | definition | open | Wikipedia List of statistics articles#JN5P |
| Ogden's lemma | KB397DFBFX | statement | open | Wikipedia Ogden's lemma#TDQ9 |
| Ogden's lemma | THZR56QSWJ | statement | open | Wikipedia Ogden's lemma, Wikidata Q1855893 |
| Ogden's lemma | TQY5FXA9T5 | statement | open | Wikipedia List of lemmas#JJVV |
| Ogden–Roxburgh model | GGBEX57HTQ | definition | open | Wikipedia Ogden–Roxburgh model, Wikidata Q25326783 |
| Ogee | 4CMHMFKW1N | unknown | open | Wikipedia List of mathematical shapes#SGWB, Wikipedia List of curves#BY3O |
| OGF ⟷ EGF conversion formulas | TYXF507X2A | statement | open | Wikipedia Generating function transformation#DLIQ |
| Ogg's conjecture | AZPQD5RPX8 | statement | open | Wikipedia Torsion conjecture#MFEL |
| Ogg's formula | P5A5XQFHQ5 | statement | open | Wikipedia Conductor of an elliptic curve#7XPE |
| Ogievetsky--Shlosman conjecture | VQZB17JCVQ | 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 2610.13972#SMIE |
| Ogive | ATF1SPQE29 | definition | open | Wikipedia Ogive (statistics), Wikidata Q48997143 |
| Ogive (statistics) | C4G8PS70QR | definition | open | Wikipedia List of statistics articles#P04V |
| OGM at \(y_N\); Conjecture 4 | K60GM4W2NG | 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 2609.35762#YUYC |
| OGY | KF2TYYV379 | unknown | open | Wikipedia Control of chaos#I4N0 |
| Ohio State University | C57QBRJRBX | unknown | open | Wikipedia List of schools for quantitative psychology#MDLI |
| Ohlson O-score | XVTE90H529 | definition | open | Wikipedia Ohlson O-score, Wikidata Q18356449 |
| ohm | 595Q57WEBY | definition | open | Wikidata Q47083, ProofWiki Definition:Ohm_(Unit) |
| Ohsawa–Takegoshi L2 extension theorem | YPTVMQ3W2Q | statement | open | Wikipedia Ohsawa–Takegoshi L2 extension theorem, Wikidata Q25111495 |
| Oikhberg, Hilbert space version | T0M34VM3YK | 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 2609.26515#URZN |
| oint | KSY9WTZQ57 | definition | open | Wikipedia Glossary of mathematical symbols#EET1 |
| Oja's rule | Q17A2YZEYC | definition | open | Wikipedia Oja's rule, Wikidata Q7081581 |
| OjAlgo | 40JN31FJBH | definition | open | Wikipedia List of open-source software for mathematics#Y4XE |
| OjAlgo | 6GFDR2GZF8 | definition | open | Wikipedia OjAlgo, Wikidata Q16928042 |
| Oka | GPH64PCB1X | definition | open | Wikipedia Glossary of real and complex analysis#F4N0 |
| Oka coherence theorem | 183P0T49FH | statement | open | Wikipedia Oka coherence theorem, Wikidata Q7081700 |
| Oka theorem | 3PQ3556YR8 | statement | open | Wikipedia Plurisubharmonic function#O6J3 |
| Oka's lemma | P2EM0MSQ6Q | concept | open | lebl_scv index/2.6/oka-s-lemma |
| Oka's lemma | WFSDX3EWJX | statement | open | Wikipedia Oka's lemma, Wikidata Q7081688 |
| Oka's lemma\index{Oka's lemma} | MPNSY32BM5 | exercise | open | lebl_scv scv.tex#exercise-141 |
| Okamoto–Uchiyama cryptosystem | QVTZ4XY6JN | definition | open | Wikipedia Okamoto–Uchiyama cryptosystem, Wikidata Q2017076 |
| Oka–Weil theorem | 6YQMFXJ5ZF | statement | open | Wikipedia List of things named after André Weil#NVJJ |
| Oka–Weil theorem | KPX3CAGRRS | statement | open | Wikipedia Oka–Weil theorem, Wikidata Q105742287 |
| Okishio's theorem | NQX44J8639 | statement | open | Wikipedia Tendency of the rate of profit to fall#DJK6 |
| Oksana Baiul | YY0N9EDR3R | unknown | open | Wikipedia List of Ukrainian Jews#0B07 |
| Okubo algebra | Z78GSY9QRF | definition | open | Wikipedia Okubo algebra, Wikidata Q17099522 |
| Ola Rosling | W9JBN1A0DM | topic | open | Wikipedia Ola Rosling, Wikidata Q22280133 |
| Ola Svensson | WBZ7KWBFZF | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#N0KS |
| Olabisi Ugbebor | 6D8EJK2VP5 | topic | open | Wikipedia Olabisi Ugbebor, Wikidata Q28976474 |
| Olaf Helmer | DG4M42Y5AT | topic | open | Wikipedia Olaf Helmer, Wikidata Q7082954 |
| Olaf Storaasli | G3SR6P85EY | topic | open | Wikipedia Olaf Storaasli, Wikidata Q7083000 |
| Olami–Feder–Christensen model | JC06FZWR4K | definition | open | Wikipedia Olami–Feder–Christensen model, Wikidata Q3556930 |
| Olaus Henrici | KKKBJ41AKR | topic | open | Wikipedia Olaus Henrici, Wikidata Q571690 |
| Olav Kallenberg | 1ZJCDJ7B6X | topic | open | Wikipedia List of people by Erdős number#VTP0 |
| Olav Kallenberg | W44T7ZQSN1 | topic | open | Wikipedia Olav Kallenberg, Wikidata Q3710485 |
| Olav Kallenberg | X4F7BZ105V | topic | open | Wikipedia List of mathematical probabilists#9IGI |
| Olav V Land | 4AVJFRMRGD | unknown | open | Wikipedia List of places with numeric names#CMJF |