| Alexander duality | BBB2BDRKBA | definition | open | Wikipedia Glossary of algebraic topology#C51D |
| Alexander duality | KKFJ39JEMB | definition | open | Wikipedia Alexander duality, Wikidata Q4720484 |
| Alexander duality | N14D7PRFKM | definition | open | Wikipedia List of dualities#GI6I |
| Alexander Dunn | 9JHVTFW5V5 | topic | open | Wikipedia Alexander Dunn (mathematician), Wikidata Q102086065 |
| Alexander Durie Russell | Y0RAF5JCA0 | topic | open | Wikipedia Alexander Durie Russell, Wikidata Q37737855 |
| Alexander Dynin | HNMVHK83GT | topic | open | Wikipedia Alexander Dynin, Wikidata Q4718783 |
| Alexander E. Postnikov | 3AA347N5FW | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q102169204, nLab Alexander Postnikov |
| Alexander Efimov | KMAVT9VWBF | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#E6P9 |
| Alexander Esenin-Volpin | 3EGF78367C | topic | open | Wikipedia List of logicians#42EY |
| Alexander Esenin-Volpin | H8H91VAYB4 | topic | open | Wikipedia Alexander Esenin-Volpin, Wikidata Q620823 |
| Alexander Evensohn | PHJARFM8W9 | unknown | open | Wikipedia List of Ukrainian Jews#9N6X |
| Alexander Freeman | S4VHWN0E6S | topic | open | Wikipedia Alexander Freeman (mathematician), Wikidata Q4718902 |
| Alexander Friedmann | 7W893NEN2D | topic | open | Wikipedia Alexander Friedmann, Wikidata Q205981 |
| Alexander Friedmann | YK2T6NQ4NK | topic | open | Wikipedia List of contributors to general relativity#HWMP |
| Alexander Furman | SZH9DASBZ1 | topic | open | Wikipedia Alexander Furman, Wikidata Q85740645 |
| Alexander Furman | Y92HPPRJMP | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#C300 |
| Alexander G. Burgess | MEMNST8NKJ | topic | open | Wikipedia Alexander G. Burgess, Wikidata Q20713658 |
| Alexander Galich | AG4C42ASP4 | unknown | open | Wikipedia List of Ukrainian Jews#W42Y |
| Alexander Gamburd | 58ET5NTNEK | topic | open | Wikipedia List of people by Erdős number#SLME, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#85IG |
| Alexander Gamburd | MB5MSZET5W | topic | open | Wikipedia Alexander Gamburd, Wikidata Q78100803 |
| Alexander Gammerman | YKD3XYX6NE | topic | open | Wikipedia Alexander Gammerman, Wikidata Q59558347 |
| Alexander Gelfond | 1X91DV7SBW | topic | open | Wikipedia Alexander Gelfond, Wikidata Q716017 |
| Alexander Gelfond | 4CBTPME5MH | topic | open | Wikipedia List of people by Erdős number#80DX, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#WVW7 |
| Alexander Gelfond | CBBN2M9WH9 | topic | open | Wikipedia List of Russian mathematicians#HZ9G |
| Alexander Gelfond | TEAGSM7YG5 | topic | open | Wikipedia List of Jewish mathematicians#ZSIH |
| Alexander Gerschenkron | 5QMQH5VAVZ | unknown | open | Wikipedia List of Ukrainian Jews#0AP0 |
| Alexander Givental | A39Y74R5Q2 | topic | open | Wikipedia List of Jewish mathematicians#R2JD |
| Alexander Givental | BFR2KA0NY5 | topic | out_of_scope (a person, not an item of mathematics) | Wikidata Q451757, nLab Alexander Givental, Wikipedia Alexander Givental |
| Alexander Givental | MF9W141826 | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#GO74 |
| Alexander Gluhovsky | KX0W1458DE | topic | open | Wikipedia Alexander Gluhovsky, Wikidata Q102182908 |
| Alexander Goncharov | BEB6H011C2 | topic | out_of_scope (a person, not an item of mathematics) | Wikidata Q2642205, nLab Alexander Goncharov, Wikipedia Alexander Goncharov |
| Alexander Goncharov | N4GJSY10PY | topic | open | Wikipedia List of Ukrainian Jews#7Y64, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#AKOW |
| Alexander Granach | GAWNGX36MM | unknown | open | Wikipedia List of Ukrainian Jews#KFK8 |
| Alexander Grothendieck | 2MMAA5X2RE | topic | open | Wikipedia List of publications in mathematics#DFIG |
| Alexander Grothendieck | 51PA0J05RP | topic | out_of_scope (a person, not an item of mathematics) | Wikidata Q77141, nLab Alexander Grothendieck, ProofWiki Mathematician:Alexander_Grothendieck, Wikipedia Alexander Grothendieck |
| Alexander Grothendieck | 5AXFNWR133 | topic | open | Wikipedia List of publications in mathematics#300M |
| Alexander Grothendieck | 8RP3NFR588 | topic | open | Wikipedia List of publications in mathematics#U4UF |
| Alexander Grothendieck | 9CRR4ZHPDZ | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#R11S |
| Alexander Grothendieck | F7B3FDXSKW | topic | open | Wikipedia List of geometers#PY2K |
| Alexander Grothendieck | PA8ER4BHVR | topic | open | Wikipedia List of people by Erdős number#FD6T, Wikipedia List of algebraic geometry topics#RLLN, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#CSP9, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#F0KA |
| Alexander Guts | G26FM3PWM4 | topic | open | Wikipedia Alexander Guts, Wikidata Q109489657 |
| Alexander Holevo | KGXVH8A7J8 | topic | open | Wikipedia Alexander Holevo, Wikidata Q2643027 |
| Alexander horned sphere | R575R11K0G | concept | open | Wikidata Q1361755, MathWorld AlexandersHornedSphere, Wikipedia Alexander horned sphere |
| Alexander horned sphere | TQREXB7RPW | definition | open | Wikipedia List of mathematical examples#46E1 |
| Alexander horned sphere | WNXVVYVMYZ | definition | open | Wikipedia List of topologies#OUXH |
| Alexander I Island | 9846JGB0P0 | unknown | open | Wikipedia List of places with numeric names#M3VO |
| Alexander I. Nazarov | WC46YN91MZ | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#2BCH |
| Alexander Ilyin | PZB63G7VNE | topic | open | Wikipedia Alexander Ilyin (mathematician), Wikidata Q38692969 |
| Alexander Its | 58CTY8FMDB | topic | open | Wikipedia Alexander Its, Wikidata Q15455711 |
| Alexander Ivanovich Bobenko | T75CV5PG69 | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q15455703, nLab Alexander Bobenko |
| Alexander Ivanovich Chuprov | 8M1EMVXNMF | topic | open | Wikipedia Alexander Ivanovich Chuprov, Wikidata Q4518138 |
| Alexander Jamieson | GXBPAY55BZ | topic | open | Wikipedia Alexander Jamieson, Wikidata Q15994540 |
| Alexander Jobson | F1RM30WXF2 | unknown | open | Wikipedia List of actuaries#FVU1 |
| Alexander John Ellis | F96SNA2SW9 | topic | open | Wikipedia Alexander John Ellis, Wikidata Q621776 |
| Alexander John Thompson | XWHWB4P9PD | topic | open | Wikipedia Alexander John Thompson, Wikidata Q4719249 |
| Alexander Johnson | 2AXTXSNHXJ | topic | open | Wikipedia Alexander Johnson (mathematician), Wikidata Q4719252 |
| Alexander Kiselev | 7MCSCGS7M2 | topic | open | Wikipedia Alexander Kiselev (mathematician), Wikidata Q30541322 |
| Alexander Kiselev | 844XBN90NZ | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#N7HU |
| Alexander Kleshchev | H9BZY08EJZ | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#34CX |
| Alexander Klyachko | CVETVN5PEF | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#R8XL |
| Alexander Konstantinopolsky | TRRGXSYB78 | unknown | open | Wikipedia List of Ukrainian Jews#H5X4 |
| Alexander Kronrod | 9W74V07CXM | unknown | open | Wikipedia List of Russian mathematicians#TWGG |
| Alexander Kropotkin | EB51M3Y62V | topic | open | Wikipedia Alexander Kropotkin, Wikidata Q4241693 |
| Alexander Kuznetsov | XTHWQ8R210 | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#VQNC, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#XZOA |
| Alexander L. Rosenberg | ETAH0QX14A | topic | open | Wikipedia Alexander L. Rosenberg, Wikidata Q55264828 |
| Alexander Lerner | M78N47KH9J | unknown | open | Wikipedia List of Jewish mathematicians#4SCG |
| Alexander Logunov | 4B94WVJXD7 | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#JLDU |
| Alexander Lubotzky | HBCRRWM0PZ | topic | open | Wikipedia Alexander Lubotzky, Wikidata Q132095 |
| Alexander Lubotzky | QFRGCQY0ZP | topic | open | Wikipedia List of Jewish mathematicians#T8GP |
| Alexander Lubotzky | VHPCWBA304 | topic | open | Wikipedia List of people by Erdős number#EC32, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#VM0Z, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#WO3M |
| Alexander Lytchak | 5HWNSG65TE | topic | open | Wikipedia Alexander Lytchak, Wikidata Q27527501 |
| Alexander M. Mood | 9MW5PM5H9E | topic | open | Wikipedia Alexander M. Mood, Wikidata Q59626618 |
| Alexander M. Mood | S4Q6YVB7HW | topic | open | Wikipedia List of fellows of the American Statistical Association#4TFF |
| Alexander M. Mood | W4GFVQ3VY7 | topic | open | Wikipedia List of presidents of the Institute of Mathematical Statistics#7I3K |
| Alexander M. Olevskii | AYTNJ7HTJP | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#IVD1 |
| Alexander Macfarlane | D7JQEP9DJD | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#0AZ3, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#Q5W4, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#TAT8 |
| Alexander Mathis | N9KA1GXBBD | topic | open | Wikipedia Alexander Mathis, Wikidata Q57986080 |
| Alexander matrix | 8HWXBA2TK4 | concept | open | Wikidata Q4720489, MathWorld AlexanderMatrix, Wikipedia Alexander matrix |
| Alexander McAulay | N8GMG3D14H | topic | open | Wikipedia Alexander McAulay, Wikidata Q4719461 |
| Alexander Merkurjev | 3BA3EFZPC0 | topic | open | Wikipedia Alexander Merkurjev, Wikidata Q2642658 |
| Alexander Merkurjev | KSAGABJ8TV | topic | open | Wikipedia List of people by Erdős number#UNVL, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#BGRF |
| Alexander Mielke | R735WNPD1K | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#V4MI |
| Alexander Mielke | WCWX86496J | topic | open | Wikipedia Alexander Mielke, Wikidata Q58387220 |
| Alexander Mihailovich Zamorzaev | 8X6E16FRD1 | topic | open | Wikipedia Alexander Mihailovich Zamorzaev, Wikidata Q4185893 |
| Alexander Mikhailov | 7J848QFM67 | unknown | open | Wikipedia List of Russian mathematicians#B50E |
| Alexander Module of a Link (see for a pedagogical exposition | A6KCBA544X | 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 2609.30262#8OIT |
| Alexander Moiseevich Olevskii | 65DZ5C050V | topic | open | Wikipedia Alexander Moiseevich Olevskii, Wikidata Q102115550 |
| Alexander Molev | 6B0P4SQES2 | topic | open | Wikipedia List of people by Erdős number#UYPI |
| Alexander Molev | BYQWFGYD9Q | topic | open | Wikipedia Alexander Molev, Wikidata Q4719673 |
| Alexander Morgan | Z1RM79AMMK | topic | open | Wikipedia Alexander Morgan (mathematician), Wikidata Q37736106 |
| Alexander Munro Davie | HNBECY1J2P | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#JANO |
| Alexander Murray MacBeath | VZ3BE9D9BV | topic | open | Wikipedia Alexander Murray MacBeath, Wikidata Q17285521 |
| Alexander Myller | XWWZ3F597V | topic | open | Wikipedia Alexander Myller, Wikidata Q12720360 |
| Alexander Nabutovsky | 3CJY4FSYE7 | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#TXSW |
| Alexander Nagel | Y3C2ASXDFK | topic | open | Wikipedia Alexander Nagel, Wikidata Q56651165 |
| Alexander of Aphrodisias | M3VC085BCW | topic | open | Wikipedia Alexander of Aphrodisias, Wikidata Q317146 |
| Alexander of Villedieu | RHQDQ3CKTG | topic | open | Wikipedia Alexander of Villedieu, Wikidata Q692413 |
| Alexander Olshanskii | NHVPFWJNTE | topic | open | Wikipedia Alexander Olshanskii, Wikidata Q23371371 |
| Alexander Oppenheim | KMXV6K5B0V | unknown | open | Wikipedia List of people by Erdős number#NEE2 |