| Oscillation theory | J3PKKHQZ0J | definition | open | Wikipedia Oscillation theory, Wikidata Q289610 |
| Oscillator | 5P683JTSXB | unknown | open | Wikipedia List of dynamical systems and differential equations topics#YL2I |
| Oscillator | ZHACDS8X80 | definition | open | Wikipedia Glossary of representation theory#6HLB |
| Oscillator and trace-norm estimate | VHDNX06F83 | 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 2609.36016#XNGH |
| Oscillator representation | RTVWVN0D8S | definition | open | Wikipedia Oscillator representation, Wikidata Q7106417 |
| Oscillatory Cauchy transforms with half a derivative | PP4B85PFZT | 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 2610.13753#66NL |
| Oscillatory concentration on the ray | X18R91FVRZ | 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 2609.24962#JG9Q |
| Oscillatory dichotomy, bounded-gap dense scales | 1MAW56ZPGM | 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 2610.00295#S08J |
| Oscillatory expectation change for Heun | V6XZQGDT4E | 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 2610.06308#500T |
| Oscillatory integral | 27YCH744YS | definition | open | Wikipedia List of Fourier analysis topics#18PL |
| Oscillatory integral | NV6HFRBYS0 | definition | open | Wikipedia Oscillatory integral, Wikidata Q2036580 |
| oscillatory integral | V6TPXD06QV | definition | open | Wikipedia Glossary of real and complex analysis#8ZMN |
| Oscillatory integral operator | HW6ECTHV0Q | definition | open | Wikipedia Oscillatory integral operator, Wikidata Q4274197 |
| Oscillatory integral operator | MZYTFE87F0 | definition | open | Wikipedia List of Fourier analysis topics#8YJZ |
| oscnode | FQHRH5B719 | definition | open | Wikipedia Glossary of classical algebraic geometry#FFBY |
| Osculant | DSMK52BH4P | definition | open | Wikipedia Osculant, Wikidata Q7106432 |
| osculant | H3R36X95CE | definition | open | Wikipedia Glossary of invariant theory#RTN6 |
| osculate | AF4HXWJZ5Z | definition | open | Wikipedia Glossary of classical algebraic geometry#X3VW |
| osculating circle | KP46WK208N | definition | open | Wikidata Q2166240, MathWorld OsculatingCircle, Wikipedia Osculating circle |
| Osculating circle | SW0YZPEH1F | definition | open | Wikipedia List of differential geometry topics#PGDI, Wikipedia List of curves topics#6SKM |
| osculating curve | JXJWYZYJM9 | definition | open | Wikidata Q7106440, MathWorld OsculatingCurves, Wikipedia Osculating curve |
| Osculating orbit | FNH1QZQH6F | definition | open | Wikipedia Osculating orbit, Wikidata Q1116090 |
| osculating plane | 43XY2C228P | definition | open | Wikipedia Glossary of classical algebraic geometry#7YPE |
| Osculating plane | PPS2SQY67D | definition | open | Wikipedia List of curves topics#ZXP0 |
| osculating plane | WTYGF9QNMC | definition | open | Wikidata Q3272489, MathWorld OsculatingPlane, Wikipedia Osculating plane |
| Osculating sphere | P0M30M1KNK | unknown | open | Wikipedia Figure of the Earth#R00R |
| osculating sphere | R81RAJGYWF | unknown | open | Wikidata Q31839232, MathWorld OsculatingSphere |
| Oseen equations | 5RNCMMX31A | definition | open | Wikipedia Oseen equations, Wikidata Q2033185 |
| Oseen tensor | E1V9PFA89S | unknown | open | Wikipedia Stokes flow#Y7WH |
| Oseledec theorem | CV8NMPCFQK | statement | open | Wikipedia List of theorems#VMM6 |
| Oseledets theorem | 309SJK37BM | statement | open | mathlib_1000 Q7106480, Wikidata Q7106480, thousand_plus Q7106480, Wikipedia Oseledec theorem, Wikipedia Oseledets theorem |
| Oseledets-Pesin | KGHCVKWJ6S | 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 2610.19812#SVBV |
| Osgood curve | TAAZ7ETTCB | definition | open | Wikipedia List of curves topics#4TCK |
| Osgood curve | TWT993KBH7 | definition | open | Wikipedia Osgood curve, Wikidata Q7106547 |
| Osgood lemma | X45AX7EZGF | 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 2509.21121#INLQ |
| Osgood's lemma | CH9YM5DXBC | statement | open | Wikipedia Osgood's lemma, Wikidata Q7106530 |
| Oskar Anderson | AN3TN5Y8HZ | topic | out_of_scope (a person, not an item of mathematics) | Wikidata Q72979, EoM Anderson,_Oskar, Wikipedia Oskar Anderson |
| Oskar Anderson | J7BQMA7QDN | topic | open | Wikipedia List of fellows of the American Statistical Association#F1U6, Wikipedia List of German mathematicians#Z39Y |
| Oskar Becker | 2KBJFPS4B0 | topic | open | Wikipedia Oskar Becker, Wikidata Q72074 |
| Oskar Bolza | 5ZG2A28228 | topic | open | Wikipedia List of German mathematicians#KHZN |
| Oskar Bolza | 8DW2ADXTGH | topic | open | Wikipedia List of mathematicians born in the 19th century#036D |
| Oskar Bolza | BQAYG6WQG9 | topic | open | Wikipedia Oskar Bolza, Wikidata Q78105 |
| Oskar Klein | 3QYH2CJ10Z | unknown | open | Wikipedia List of contributors to general relativity#LUCX |
| Oskar Klein | DQV3W152M6 | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q251524, nLab Oskar Klein |
| Oskar Klein | WTBVF62YET | unknown | open | Wikipedia List of string theory topics#ZMFY |
| Oskar Morgenstern | E5R7702WB3 | unknown | open | Wikipedia List of fellows of the American Statistical Association#C2C7 |
| Oskar Morgenstern | WPTT0Z7XC0 | unknown | open | Wikipedia List of publications in mathematics#DWW7 |
| Oskar Perron | 2Y8N4J1T8K | topic | out_of_scope (a person, not an item of mathematics) | Wikidata Q65189, ProofWiki Mathematician:Oskar_Perron, Wikipedia Oskar Perron |
| Oskar Perron | RX40PFE31D | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#FZ5E, Wikipedia List of German mathematicians#KG5Z |
| Oskar Schlömilch | 2RVF11WNHA | topic | open | Wikipedia Oskar Schlömilch, Wikidata Q65178 |
| Osmo Pekonen | FCDRKBRANC | topic | open | Wikipedia Osmo Pekonen, Wikidata Q3047135 |
| Osofsky; Sabbagh--Eklof, 1971 | AGRJGC2YPX | 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 2609.35682#46A8 |
| OSP for sparse vectors | PKBD70RHQY | 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 2610.16715#4IJJ |
| Osserman | E812681VDD | 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 2609.33643#0RFV |
| Osserman conjecture | 1BHMYEVGSQ | statement | open | Wikipedia Osserman manifold#KLAS |
| Osserman conjecture | NJMV16ZMY7 | object | open | Wikipedia List of unsolved problems in mathematics#KXRK |
| Osserman manifold | E2RVZ2Y369 | object | open | Wikipedia Osserman manifold, Wikidata Q130377166 |
| Ossip Bernstein | MENP6S51FT | unknown | open | Wikipedia List of Ukrainian Jews#CNON |
| ostensive definition | F3KC30XQ84 | definition | open | Wikipedia Glossary of logic#83N4 |
| Osterwalder--Schrader positivity | FA4MNQSXFC | 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 2609.29671#W8D8 |
| Osterwalder–Schrader axioms | 2VTNG3VNDD | statement | open | Wikipedia Schwinger function#GIKQ |
| Osterwalder–Schrader axioms | K1FVJ5ZVD1 | statement | open | Wikipedia Axiomatic quantum field theory#JFU8 |
| Osterwalder–Schrader reconstruction theorem | W8V6Q8RB63 | statement | open | Wikipedia Wightman axioms#WH3F |
| Osterwalder–Schrader theorem | 9ETSXEA7HB | statement | open | Wikipedia Schwinger function#OU1U |
| Osterwalder–Schrader theorem | ZASVE838XW | definition | open | Wikipedia List of theorems#CZ1Z |
| Ostilio Ricci | 1HHGZGMHWR | topic | open | Wikipedia Ostilio Ricci, Wikidata Q926531 |
| Ostilio Ricci | JFWTSAWJ73 | topic | open | Wikipedia List of Italian mathematicians#5O6T |
| Ostomachion | MA8B0S6E5N | definition | out_of_scope (a book or a journal, not an item of mathematics) | Wikidata Q1679561, MathWorld Stomachion, Wikipedia Ostomachion |
| Ostrich effect | 1BQ5C4N4HH | unknown | open | Wikipedia List of cognitive biases#DZ86 |
| Ostriches do not stick their heads in the sand | 8119DBMMCA | unknown | open | Wikipedia List of common misconceptions about science, technology, and mathematics#L46H |
| Ostrogradsky instability | QRM5R1162D | definition | open | Wikipedia Ostrogradsky instability, Wikidata Q25303727 |
| Ostrowski numeration | 92XBCWJX3A | definition | open | Wikipedia Ostrowski numeration, Wikidata Q7107841 |
| Ostrowski Prize | C12P7ZH2HR | definition | open | Wikipedia Ostrowski Prize, Wikidata Q690881 |
| Ostrowski's theorem | 3NK0XTK4HV | statement | open | Wikipedia List of theorems#A8KD |
| Ostrowski's theorem | A2V9X8HSEF | statement | open | mathlib_1000 Q2919401, Mathlib Rat.AbsoluteValue.equiv_real_or_padic, Mathlib RatFunc.valuation_isEquiv_infty_or_adic, Wikidata Q2919401, thousand_plus Q2919401, Wikipedia Ostrowski's theorem, nLab Ostrowski's theorem |
| Ostrowski's theorem | MRVXG5CJT6 | statement | open | Wikipedia P-adic analysis#4E3W |
| Ostrowski–Hadamard gap theorem | 95DYCMXF0V | statement | open | mathlib_1000 Q4454910, Wikidata Q4454910, thousand_plus Q4454910, Wikipedia Ostrowski–Hadamard gap theorem, MathWorld Ostrowski-HadamardGapTheorem, Wikipedia Hadamard gap theorem |
| Ostwald ripening | ZWN7RS0DJQ | definition | open | Wikipedia Ostwald ripening, Wikidata Q903984 |
| Oswald Jacoby | B6NMKMY83Z | unknown | open | Wikipedia List of actuaries#1P7T |
| Oswald Leroy | 74CV3KRAH4 | topic | open | Wikipedia Oswald Leroy, Wikidata Q16935149 |
| Oswald Teichmüller | 1BCGFC4HYB | unknown | open | Wikipedia List of cryptographers#HBY5 |
| Oswald Teichmüller | NMH8D1S7SE | unknown | open | Wikipedia List of German mathematicians#PKMP |
| Oswald Teichmüller | R91ZYBKJQN | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q68507, nLab Oswald Teichmüller |
| Oswald Veblen | 3JZGFCQH1D | unknown | open | Wikipedia List of geometers#QYDR |
| Oswald Veblen | ERJ69DCHKJ | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#8X1O, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#VCF4 |
| Oswald Veblen | F7RRF656Y1 | unknown | open | Wikipedia List of mathematicians born in the 19th century#YRUN |
| Oswald Veblen Prize in Geometry | ED19TJFE2N | definition | open | Wikipedia Oswald Veblen Prize in Geometry, Wikidata Q654649 |
| Oswaldo Castro | 4FTCZGZ9SY | topic | open | Wikipedia Oswaldo Castro, Wikidata Q104762381 |
| Oswaldo Lezama | WTR8FQEVRQ | topic | open | Wikipedia Oswaldo Lezama, Wikidata Q98034086 |
| Oszt\'enyi | GCR3QM66YD | 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 2407.05730#BH3C |
| ot | SRNHYG5JEM | definition | open | Wikipedia Glossary of set theory#F04Y |
| Otakar Borůvka | W81KFG1B0F | topic | open | Wikipedia Otakar Borůvka, Wikidata Q725806 |
| OTFE | ZC2QDRKP6Z | unknown | open | Wikipedia Disk encryption#XO5T |
| Otfrid Mittmann | XG53YQX90G | topic | open | Wikipedia Otfrid Mittmann, Wikidata Q19666181 |
| Otfrid Mittmann | XRBGFAJC70 | topic | open | Wikipedia List of German mathematicians#EE24 |
| Otfried Cheong | S6YPGTNF7H | unknown | open | Wikipedia List of people by Erdős number#CQ2A, Wikipedia List of German mathematicians#8J3V |
| Othello | 5CXFBFS3RM | unknown | open | Wikipedia List of U.S. communities with Hispanic-majority populations in the 2000 census#WCSR |
| Other admissibility identities | J0PGNW29XF | 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 2610.12483#LC9E |
| Other analytical theorems | B05T082R5R | statement | open | Wikipedia Karl Weierstrass#K9LI |
| Other area formulas | XCDBHPTET3 | statement | open | Wikipedia Area of a triangle#YGYV |