| James Weatherup | MER5WX34TY | unknown | open | Wikipedia List of people arrested in the News International phone-hacking scandal#694B |
| James Weldon Cannon | H9KKGTD14W | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#H24X |
| James Wiegold | NZT23SC7QJ | topic | open | Wikipedia James Wiegold, Wikidata Q6145491 |
| James William Peter Hirschfeld | 1XXSN9W35K | unknown | open | Wikipedia List of people by Erdős number#S162 |
| James Wood | GYZY0RSAGE | topic | open | Wikipedia James Wood (mathematician), Wikidata Q6145777 |
| James' space | DTBWG0MQT4 | definition | open | Wikipedia James' space, Wikidata Q11829157 |
| James' space | EK7KTD6C1M | definition | open | Wikipedia List of Banach spaces#4M1W |
| James' theorem | VWX85YWHPB | statement | open | Wikipedia Reflexive space#850P |
| James' Theorem | WW4R22WKKJ | statement | open | Wikipedia Banach space#K0MY |
| James's theorem | 61X3XJQ9XN | statement | open | Wikipedia James's theorem, Wikidata Q1780722 |
| James's theorem | C9KQ1DE2WV | statement | open | Wikipedia James's theorem#TVLQ |
| James, Bill | 2X7N8KWER1 | unknown | open | Wikipedia List of statisticians#1O2B |
| James–Stein estimator | C4BKZ1FSH1 | definition | open | Wikipedia List of statistics articles#EVSC |
| James–Stein estimator | P24B197H5A | definition | open | Wikipedia James–Stein estimator, Wikidata Q6146297 |
| Jamet | 4WQK3QHQKW | 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 2609.21043#BF6R |
| JAMGF0YS9J | JAMGF0YS9J | 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 2609.25843#1P3J |
| Jami | EGE4C11659 | definition | open | Wikipedia Jami (software), Wikidata Q3459508 |
| Jamie Whyte | 184BEC5XTZ | topic | open | Wikipedia Jamie Whyte, Wikidata Q15070150 |
| JAMJAMF7PW | JAMJAMF7PW | 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 2610.06645#6HJD |
| Jamovi | GS2WSGEK0M | definition | open | Wikipedia Jamovi, Wikidata Q29364618 |
| Jamovi | ZMJ2N0G02P | definition | open | Wikipedia List of statistical software#TOR7 |
| Jamshid-i Kashani | 44NP7VN02V | topic | open | Wikipedia List of Iranian mathematicians#5WKB |
| Jamshidian's trick | 5TWGJJBPRZ | definition | open | Wikipedia Jamshidian's trick, Wikidata Q6148253 |
| Jamshīd al-Kāshī | 89BT6HNNNF | topic | out_of_scope (a person, not an item of mathematics) | Wikidata Q115466, ProofWiki Mathematician:Jamshīd_al-Kāshī, Wikipedia Jamshid al-Kashi |
| Jan Arnoldus Schouten | HA552NQ8Q5 | topic | open | Wikipedia List of people by Erdős number#7I8P, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#6Y1G, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#DCY6, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#MKXB |
| Jan Arnoldus Schouten | PW58E5FZMY | topic | open | Wikipedia Jan Arnoldus Schouten, Wikidata Q432443 |
| Jan Berry | 8VDS43B1BA | unknown | open | Wikipedia List of University of California, Los Angeles people#9RY2 |
| Jan Brinkhuis | B3YPGDJA6B | topic | open | Wikipedia Jan Brinkhuis, Wikidata Q11110326 |
| Jan Butterfield | VWKGEYZEP2 | unknown | open | Wikipedia List of University of California, Los Angeles people#FA0W |
| Jan Camiel Willems | 7FXXVNXAS7 | topic | open | Wikipedia Jan Camiel Willems, Wikidata Q15429591 |
| Jan Camiel Willems | TJPVPZVTVX | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#ZAUJ |
| Jan de Boer | EPSM1PW9RW | unknown | open | Wikipedia List of string theory topics#FZO4 |
| Jan de Lange | W9YNPZDR0E | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#ET8N |
| Jan de Leeuw | 43QKQKKFX0 | topic | open | Wikipedia Jan de Leeuw, Wikidata Q6150315 |
| Jan de Leeuw | 79K2XG2KPH | topic | open | Wikipedia List of fellows of the American Statistical Association#63OS |
| Jan Denef | 1NZ3TE78SV | topic | open | Wikipedia Jan Denef, Wikidata Q1681710 |
| Jan Denef | ERFGFPDPYX | topic | open | Wikipedia List of people by Erdős number#6PGS, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#K83B |
| Jan H. van Schuppen | 4S8B8FSA8R | topic | open | Wikipedia Jan H. van Schuppen, Wikidata Q6149013 |
| Jan Hemelrijk | D57J9EYWRQ | topic | open | Wikipedia List of fellows of the American Statistical Association#BO4Z |
| Jan Hemelrijk | RZE0JKT9HV | topic | open | Wikipedia Jan Hemelrijk, Wikidata Q2061088 |
| Jan Hendrik Bruinier | 2G3BTJF7N4 | topic | open | Wikipedia Jan Hendrik Bruinier, Wikidata Q1397150 |
| Jan Hoem | EJVEHBH3A5 | topic | open | Wikipedia Jan Hoem, Wikidata Q241571 |
| Jan Hogendijk | 6RJ9S7A02W | topic | open | Wikipedia Jan Hogendijk, Wikidata Q1681854 |
| Jan Jaworowski | 6HE4K11KCE | topic | open | Wikipedia Jan Jaworowski, Wikidata Q16561397 |
| Jan Kalicki | 2S6RZY6J6R | topic | open | Wikipedia Jan Kalicki, Wikidata Q37735113 |
| Jan Karel Lenstra | A38EDY6M2F | topic | open | Wikipedia List of people by Erdős number#LGNK |
| Jan Karel Lenstra | E473ZKYB4D | topic | open | Wikipedia Jan Karel Lenstra, Wikidata Q6149223 |
| Jan Kmenta | 9XW933T5YF | unknown | open | Wikipedia List of fellows of the American Statistical Association#MPCM |
| Jan Koenderink | PP7EQHH55F | topic | open | Wikipedia Jan Koenderink, Wikidata Q21594960 |
| Jan Kohlhaase | Q301GSKABC | topic | open | Wikipedia Jan Kohlhaase, Wikidata Q102278297 |
| Jan Koum | 8GTF7JKWHP | unknown | open | Wikipedia List of Ukrainian Jews#IJ6S |
| Jan Kratochvíl | QH0JVMS626 | topic | open | Wikipedia Jan Kratochvíl, Wikidata Q18341539 |
| Jan Mandel | T38QK46JR7 | topic | open | Wikipedia Jan Mandel, Wikidata Q6149425 |
| Jan Mikusiński | 7YTFWRR0SV | topic | open | Wikipedia Jan Mikusiński, Wikidata Q925832 |
| Jan Mikusiński | V4D0QB3DJS | topic | open | Wikipedia List of people by Erdős number#RGBN |
| Jan Mycielski | 91VPNPKNKW | topic | open | Wikipedia List of people by Erdős number#X2T9 |
| Jan Mycielski | R4S9WTCMCR | topic | open | Wikipedia Jan Mycielski, Wikidata Q505056 |
| Jan Nekovář | 99710J4PTH | topic | out_of_scope (a person, not an item of mathematics) | Wikidata Q15455421, nLab Jan Nekovar, Wikipedia Jan Nekovář |
| Jan P. Hogendijk | GBXMH8BGQ5 | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#PSHK |
| Jan Pelant | XVQ50381Z3 | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q95172472, ProofWiki Mathematician:Jan_Pelant |
| Jan Philip Solovej | 1WSHBYC462 | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#V5G4 |
| Jan Philip Solovej | W14RNPM7T0 | topic | open | Wikipedia Jan Philip Solovej, Wikidata Q1520792 |
| Jan Piekałkiewicz | H2H68Y3XAD | topic | open | Wikipedia Jan Piekałkiewicz, Wikidata Q6149717 |
| Jan Poleszczuk | Z7T29RTHS0 | topic | open | Wikipedia Jan Poleszczuk, Wikidata Q57273466 |
| Jan Rusinek | 5S0GRWQJQG | topic | open | Wikipedia Jan Rusinek, Wikidata Q728679 |
| Jan S. Hesthaven | 107QZZJM10 | topic | open | Wikipedia List of people by Erdős number#ZZPU, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#1242 |
| Jan S. Hesthaven | 4J5J5FSX2X | topic | open | Wikipedia Jan S. Hesthaven, Wikidata Q90744457 |
| Jan Saxl | CWA9TTP8M2 | topic | open | Wikipedia Jan Saxl, Wikidata Q93863611 |
| Jan Stussy | 4XPJSN961T | unknown | open | Wikipedia List of University of California, Los Angeles people#DDU0 |
| Jan te Nijenhuis | 4P2BPVC1HF | topic | open | Wikipedia Jan te Nijenhuis, Wikidata Q47350932 |
| Jan Tinbergen | H3CM6TWK6G | unknown | open | Wikipedia List of fellows of the American Statistical Association#IEZ4 |
| Jan Trlifaj | 6T48VCGCS7 | topic | open | Wikipedia List of people by Erdős number#OZEH |
| Jan Trlifaj | 8BXA0G5SBQ | topic | open | Wikipedia Jan Trlifaj, Wikidata Q57412623 |
| Jan Vaerman | AGPBZ5D79D | topic | open | Wikipedia Jan Vaerman, Wikidata Q21209117 |
| Jan van Leeuwen | KRKA1GWV34 | unknown | open | Wikipedia List of people by Erdős number#PGKE |
| Jan Visman | F9EJS403YM | topic | open | Wikipedia Jan Visman, Wikidata Q6150134 |
| Jan Vondrák | V8BQ9X255J | topic | open | Wikipedia Jan Vondrák, Wikidata Q33083220 |
| Jan Willem Nienhuys | RCSP7BVJWZ | topic | open | Wikipedia Jan Willem Nienhuys, Wikidata Q3000032 |
| Jan Willem van Holten | N9BVE585AH | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q77086471, nLab Jan-Willem van Holten |
| Jan Wurm | G0JGAXTAPD | unknown | open | Wikipedia List of University of California, Los Angeles people#QXQ3 |
| Jan Zwicky | J8CJCE72N8 | topic | open | Wikipedia Jan Zwicky, Wikidata Q1682395 |
| Jan Łukasiewicz | 9JT1Y1GNR1 | topic | open | Wikipedia Jan Łukasiewicz, Wikidata Q313454 |
| Jan Łukasiewicz | J6WDNFATVG | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#CN7M |
| Jan Łukasiewicz | NJVFQ8PM21 | topic | open | Wikipedia List of logicians#XAWL |
| Jan Śleszyński | T2839W7KJ2 | topic | open | Wikipedia Jan Śleszyński, Wikidata Q6097897 |
| Jan Śniadecki | MWE0Y03N6V | topic | open | Wikipedia Jan Śniadecki, Wikidata Q536339 |
| Jan-Erik Roos | FYN1DRZMQ4 | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q6078348, nLab Jan-Erik Roos |
| Jan-Olov Strömberg | RZSGWM4591 | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#VA0N |
| JAN18WF17C | JAN18WF17C | 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 2609.36444#H65E |
| Jana Asher | 3HGEK609JZ | topic | open | Wikipedia Jana Asher, Wikidata Q59884141 |
| Jana Asher | VTWBAZBF83 | topic | open | Wikipedia List of fellows of the American Statistical Association#3VWI |
| Jana Jurečková | DRNRQD32SM | topic | open | Wikipedia Jana Jurečková, Wikidata Q15119834 |
| Jana Rodriguez Hertz | WZBQTF4GV8 | topic | open | Wikipedia Jana Rodriguez Hertz, Wikidata Q26159947 |
| Janakiammal | NB5VBSH5J9 | unknown | open | Wikipedia Srinivasa Ramanujan#7O77 |
| JaNay Brown-Wood | 629Y56BKRR | unknown | open | Wikipedia List of University of California, Los Angeles people#802D |
| Jane Ammons | AKTRG25SQQ | unknown | open | Wikipedia List of people by Erdős number#SDAW |
| Jane Cronin Scanlon | 5145Y7CZ45 | topic | open | Wikipedia Jane Cronin Scanlon, Wikidata Q1682585 |
| Jane Cullum | 464VJR4Q4B | topic | open | Wikipedia Jane Cullum, Wikidata Q97801351 |
| Jane F. Gentleman | EP4K8DN19R | topic | open | Wikipedia List of people by Erdős number#J9DK, Wikipedia List of fellows of the American Statistical Association#KFPN |
| Jane F. Gentleman | QZYSTPZMKQ | topic | open | Wikipedia Jane F. Gentleman, Wikidata Q43948389 |