| Arnold Emch | AW33VWY839 | topic | open | Wikipedia Arnold Emch, Wikidata Q18070700 |
| Arnold Emch | CP2YJXPAB1 | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#K2M0, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#P4S5 |
| Arnold Geulincx | EX07G20R9K | topic | open | Wikipedia Arnold Geulincx, Wikidata Q316559 |
| Arnold invariants | 3R3NREBKE3 | definition | open | Wikipedia Arnold invariants, Wikidata Q130543710 |
| Arnold Magowan Arthurs | P9PPGE865R | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q102175305, ProofWiki Mathematician:Arnold_M._Arthurs |
| Arnold Mathematical Journal | Z8STSFHGYT | definition | open | Wikipedia Arnold Mathematical Journal, Wikidata Q85743072 |
| Arnold Möller | G15307NS06 | unknown | open | Wikipedia List of German mathematicians#TE54 |
| Arnold Neumaier | X2NRPE3WVC | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q58420481, nLab Arnold Neumaier |
| Arnold Nordsieck | 8RQH3XCZX3 | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q695856, nLab Arnold Nordsieck |
| Arnold Oberschelp | JT41X9Z8WM | topic | open | Wikipedia Arnold Oberschelp, Wikidata Q115312 |
| Arnold Reymond | VM6AMFZVYG | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#AQQG |
| Arnold Ross | H9C18FZKJ5 | topic | open | Wikipedia Arnold Ross, Wikidata Q4795229 |
| Arnold S. Shapiro | NEJP075E53 | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q4795236, nLab Arnold Shapiro |
| Arnold Scheibel | 12TP7K6V5Z | unknown | open | Wikipedia List of University of California, Los Angeles people#OQNQ |
| Arnold Schoenberg | ME9TC4GJ38 | unknown | open | Wikipedia List of University of California, Los Angeles people#39HD |
| Arnold Scholz | 4XH8EN5NY3 | topic | open | Wikipedia Arnold Scholz, Wikidata Q111265 |
| Arnold Scholz | A9M5KAJXBC | topic | open | Wikipedia List of German mathematicians#I2TC |
| Arnold Schönhage | FGZDBBZVM2 | topic | open | Wikipedia List of people by Erdős number#PNGM, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#CWYA, Wikipedia List of German mathematicians#0QVP |
| Arnold Schönhage | SH6B15J42H | topic | open | Wikipedia Arnold Schönhage, Wikidata Q78106 |
| Arnold Sommerfeld | HJS5E6MRSX | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#P75Q, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#PDGU |
| Arnold Sommerfeld | QPZW4CR4DX | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q77078, nLab Arnold Sommerfeld, ProofWiki Mathematician:Arnold_Johannes_Wilhelm_Sommerfeld |
| Arnold tongue | CWZW349FZ7 | concept | open | Wikidata Q2040587, MathWorld ArnoldTongue, MathWorld CircleMap, Wikipedia Arnold tongue |
| Arnold Walfisz | GTER8Y3DZH | topic | open | Wikipedia Arnold Walfisz, Wikidata Q354609 |
| Arnold Walfisz | MJ3F06B670 | topic | open | Wikipedia List of people by Erdős number#ZHSX |
| Arnold Walfisz | ZS9PHMVKNM | topic | open | Wikipedia List of Jewish mathematicians#R5UT |
| Arnold Zellner | AZCW0RJS8K | unknown | open | Wikipedia List of fellows of the American Statistical Association#XEW8 |
| Arnold's "conjecture" | ZPTJB6ATD0 | statement | open | Wikipedia Beltrami vector field#B17K |
| Arnold's cat map | 8W4M4WV3ZV | definition | open | Wikipedia List of dynamical systems and differential equations topics#UDB2 |
| Arnold's cat map | HJWGCPBKM2 | definition | open | Wikidata Q2961488, MathWorld ArnoldsCatMap, Wikipedia Arnold's cat map |
| Arnold's Problems | PKB8GJTA64 | problem | open | Wikipedia Arnold's Problems, Wikidata Q131293111 |
| Arnold's spectral sequence | FXZ3FFHJ7K | definition | open | Wikipedia Arnold's spectral sequence, Wikidata Q25099352 |
| Arnold, Vladimir Igorevich | 1370E5HHR7 | topic | open | Wikipedia List of Ukrainian mathematicians#A05W |
| Arnoldi iteration | 2CCGY94HFB | definition | open | Wikipedia List of numerical analysis topics#8AKP |
| Arnoldi iteration | R4CDWQZSMN | definition | open | Wikipedia Arnoldi iteration, Wikidata Q696822 |
| Arnoldi queries of the core | TM4M0G7BGH | 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 2610.05498#PN80 |
| Arnold–Givental conjecture | 4CK4S9SQD1 | statement | open | Wikipedia Arnold conjecture#V7AG |
| Arnold–Givental conjecture | JCR1843H66 | conjecture | open | Wikipedia List of unsolved problems in mathematics#Q9AT |
| Arnold–Kuiper–Massey theorem | 7JXVSF870H | statement | open | Wikipedia Arnold–Kuiper–Massey theorem, Wikidata Q141352771 |
| ARNPTHVPAC | ARNPTHVPAC | 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 2609.38742#XT51 |
| Aron Simis | EV32305SR7 | topic | open | Wikipedia Aron Simis, Wikidata Q195729 |
| Aronhold invariant | YQ258N2TJV | definition | open | Wikipedia Glossary of invariant theory#O046 |
| Aronhold set | JEHPRQNRXE | definition | open | Wikipedia Glossary of classical algebraic geometry#KTX8 |
| Aronson's sequence | XE0VFCFDTJ | object | open | Wikidata Q4795562, MathWorld AronsonsSequence, OEIS A005224 |
| Aronszajn | DXJTVJEXFA | definition | open | Wikipedia Glossary of set theory#D1L9 |
| Aronszajn line | KEHA73D083 | definition | open | Wikipedia Aronszajn line, Wikidata Q4795568 |
| Aronszajn tree | DS9MJ0408A | definition | open | Wikipedia List of statements independent of ZFC#RR6S |
| Aronszajn tree | Z0AKPMR3Y8 | definition | open | Wikipedia Aronszajn tree, Wikidata Q1192020 |
| Aronszajn–Smith theorem | HC6GXXP9F9 | conjecture | open | Wikipedia List of theorems#UO4X |
| Arora--Chlamt\'a\v{c}--Charikar | FVPEBMPA9S | 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 2610.01071#5X9W |
| ARP68Q9MP7 | ARP68Q9MP7 | 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 2609.37606#RNW4 |
| ARPACK | 2N0298A6ZJ | unknown | open | Wikipedia List of open-source software for mathematics#186F |
| ARQ | C0GKV8JH6K | unknown | open | Wikipedia List of algebraic coding theory topics#1PFV |
| ARQ2H861WJ | ARQ2H861WJ | 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 2610.14060#EHBZ |
| ARQ49GEPBQ | ARQ49GEPBQ | 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 2610.03422#VZX5 |
| Arran Fernandez | ER6Y1Q5G0F | unknown | open | Wikipedia List of people by Erdős number#QKW1 |
| Arrangement | N872VH8S8W | definition | open | Wikipedia Arrangement (space partition), Wikidata Q18209559 |
| arrangement graph | BHDSW06TH4 | unknown | open | Wikidata Q137187267, MathWorld ArrangementGraph |
| arrangement of hyperplanes | WRHR5WHVP3 | definition | open | Wikidata Q4795851, nLab arrangement of hyperplanes, Wikipedia Arrangement of hyperplanes |
| Arrangement of lines | QZD6BA01N6 | definition | open | Wikipedia Arrangement of lines, Wikidata Q4795848 |
| Arrangement of pseudolines | NXDN234X6H | definition | open | Wikipedia Arrangement of pseudolines, Wikidata Q134531054 |
| Arrangement of tropical hypersurfaces for framingtopes | K1NRZ0CV4V | 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 2609.20656#SYTL |
| array | 6B6ACE3HMD | concept | open | applied_combinatorics index/2.1/array |
| array | DE5B7KK2T4 | unknown | open | mathlib_overview Data structures > List-like structures > array, Mathlib Array |
| Array controller based encryption | ATGR8X93V0 | definition | open | Wikipedia Array controller based encryption, Wikidata Q4795877 |
| array data structure | APKFJS6Y96 | unknown | open | Wikidata Q186152, MathWorld Array |
| ARRERF7R1D | ARRERF7R1D | 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 2609.23660#GU7K |
| ARRGY7T50N | ARRGY7T50N | 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 2610.12277#PN6J |
| Arrhenius equation | JWPF2CN2BG | definition | open | Wikipedia Arrhenius equation, Wikidata Q507505 |
| ARRHYRJ6SZ | ARRHYRJ6SZ | unknown | open | arXiv 2610.13680#HOAC |
| Arrival theorem | 897BFGW5X7 | statement | open | Wikipedia List of theorems#501B |
| Arrival theorem | A0EJFHHNME | statement | open | Wikipedia List of statistics articles#K090 |
| Arrival theorem | CK0DE0TH06 | statement | open | Wikipedia M/G/1 queue#BRYC |
| Arrival theorem | D36P0WKW4T | statement | open | mathlib_1000 Q283690, Wikidata Q283690, thousand_plus Q283690, Wikipedia Arrival theorem |
| Arroio Trinta | S5AB0T2407 | unknown | open | Wikipedia List of places with numeric names#KOPS |
| Arrow | G0HRDPN0SP | definition | open | Wikipedia Arrow (symbol), Wikidata Q1139519 |
| arrow | SX6HFZ1ZES | definition | open | Wikipedia Glossary of graph theory#ZZW8 |
| Arrow category | T1RYSB5BEC | unknown | open | Wikipedia Comma category#2I0W |
| Arrow paradox | JFX70DGY5M | statement | open | Wikipedia Zeno's paradoxes#EGCD |
| Arrow's impossibility theorem | 47KFHK6WGW | statement | open | Wikipedia Kenneth Arrow#M764 |
| Arrow's impossibility theorem | G8CYFVN2ZW | statement | open | Wikipedia Social choice theory#3P1Z |
| Arrow's impossibility theorem | KCAKPEQFK6 | statement | open | Wikipedia List of theorems#SHV2 |
| Arrow's impossibility theorem | QZRZTKSH86 | statement | open | Wikipedia Trilemma#VL7T |
| Arrow's impossibility theorem | TENTXXVFMH | statement | open | mathlib_1000 Q33481, Wikidata Q33481, thousand_plus Q33481, Wikipedia Arrow's impossibility theorem, MathWorld ArrowsParadox |
| Arrow's theorem | 5514SANRSR | statement | open | Wikipedia Analysis of Boolean functions#HPEE |
| Arrow's theorem: Rational ranked-choice voting | ENJX36DAY0 | statement | open | Wikipedia Proof of impossibility#Y57B |
| Arrow, Kenneth | A0TGZ9K1Q8 | topic | open | Wikipedia List of statisticians#SC6D |
| Arrow--Hansson | C9KYTDGN5R | 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 2610.20542#38PN |
| Arrow-Debreu equilibria | WV508KNMAC | definition | open | Wikipedia List of PPAD-complete problems#T327 |
| Arrow-Lind theorem | WSHBCZ7K5Y | statement | open | Wikipedia List of theorems#FLU1 |
| Arrowhead matrix | TYJ4M7XYW2 | definition | open | Wikipedia Arrowhead matrix, Wikidata Q4796198 |
| Arrows in Unicode | DNFNC669YE | unknown | open | Wikipedia Arrow (symbol)#MPFD |
| Arrow–Debreu model | KHFXCPR2DJ | definition | open | Wikipedia Arrow–Debreu model, Wikidata Q702933 |
| Arrow–Lind principle | VK5GXBNTSY | statement | open | mathlib_1000 Q17002391, Wikidata Q17002391, thousand_plus Q17002391, Wikipedia Arrow-Lind principle, Wikipedia Arrow–Lind principle |
| ARRSQPVY72 | ARRSQPVY72 | 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 2610.20760#K04S |
| Ars Conjectandi | QZHCJVZG2G | definition | open | Wikipedia Ars Conjectandi, Wikidata Q1824330 |
| Ars inveniendi | WFKH5GFFXY | unknown | open | Wikipedia Mathesis universalis#X830 |
| Ars Magna | F39DFQS81E | definition | out_of_scope (a book, not an item of mathematics) | Wikidata Q1231083, ProofWiki Book:Gerolamo_Cardano/Artis_Magnae,_Sive_de_Regulis_Algebraicis, Wikipedia Ars Magna (Cardano book) |
| Ars Magna (Llull book) | VECCG0JJ2V | unknown | open | Wikipedia Ramon Llull#KGP5 |
| Ars Mathematica Contemporanea | AK8Y2DF5NC | definition | open | Wikipedia Ars Mathematica Contemporanea, Wikidata Q4796311 |
| ARS37B46Q8 | ARS37B46Q8 | 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 2609.37439#FC5B |