| Brillouin and Langevin functions | KARCWAXSQC | definition | open | Wikipedia Brillouin and Langevin functions, Wikidata Q371162 |
| Brillouin zone | VH1PK74J0R | definition | open | Wikipedia Brillouin zone, Wikidata Q917246 |
| Brillouin's negentropy principle of information | 47E3DWA7HY | statement | open | Wikipedia Negentropy#GBTG |
| Brill–Noether theory | TTBT10Y2RF | topic | open | Wikidata Q3032324, ProofWiki Definition:Brill-Noether_Theory, Wikipedia Brill–Noether theory |
| Bring radical | 62NT6THPVQ | concept | open | Wikidata Q2386216, MathWorld Ultraradical, Wikipedia Bring radical |
| Bring radical | H93C8CE9X6 | definition | open | Wikipedia List of polynomial topics#NT32 |
| Bring's curve | G5K95Y8T96 | definition | open | Wikipedia List of curves#VPHH |
| Bring's curve | T604MGAAXF | definition | open | Wikipedia Bring's curve, Wikidata Q4968228 |
| Bring-Gerrard form | XYAR85PXYZ | unknown | open | Wikipedia Bring radical#T1D3 |
| Bring-Jerrard quintic form | KT0F497ZSZ | concept | open | Wikidata Q124222098, MathWorld Bring-JerrardQuinticForm |
| Brinkman form of Darcy's law | N5H3KCQ5QM | statement | open | Wikipedia Darcy's law#51O4 |
| Brinkmann graph | WMP2RGRGQK | definition | open | Wikidata Q3115474, House of Graphs 960, MathWorld BrinkmannGraph, Wikipedia Brinkmann graph |
| Brioschi covariant | N2AZ8ATCBF | definition | open | Wikipedia Glossary of invariant theory#SW78 |
| Briot, Bouquet | AHWT17JJ6W | 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 2610.01520#J9UX |
| Briot–Bouquet equation | 44PPFQKBDG | concept | open | Wikidata Q124414475, EoM Briot-Bouquet_equation, MathWorld Briot-BouquetEquation |
| Brisa Sánchez | QMSC73WX0Q | unknown | open | Wikipedia List of fellows of the American Statistical Association#5BFW |
| Bristol Bridges Walk | 7TFG7GFAVD | definition | open | Wikipedia Bristol Bridges Walk, Wikidata Q123700152 |
| Britannia Prima | 4AGHGATWV9 | unknown | open | Wikipedia List of places with numeric names#K605 |
| Britannia Secunda | 9PV3BJA0SF | unknown | open | Wikipedia List of places with numeric names#1CVG |
| British | HX1SB4C1GH | unknown | open | Wikipedia List of countries by past and projected future population#UMTE |
| British | Y26B0FCCNC | unknown | open | Wikipedia List of countries by past and projected future population#SPDC |
| British Armed Forces | HB9PH8B6D9 | unknown | open | Wikipedia List of people arrested in the News International phone-hacking scandal#JB8S |
| British Army | KJQ227SRE4 | unknown | open | Wikipedia List of people arrested in the News International phone-hacking scandal#R9S6 |
| British flag theorem | EF13T3HRY0 | statement | open | mathlib_1000 Q4971339, Mathlib EuclideanGeometry.dist_sq_add_dist_sq_eq_dist_sq_add_dist_sq_of_angle_eq_pi_div_two, Wikidata Q4971339, thousand_plus Q4971339, Wikipedia British flag theorem |
| British flag theorem | XCDP9AHCE2 | statement | open | Wikipedia List of theorems#GEMA |
| British Journal of Mathematical and Statistical Psychology | JSGTAK7VV0 | definition | open | Wikipedia List of statistics journals#FEIY |
| British Journal of Mathematical and Statistical Psychology | R2E9D4W6SR | definition | open | Wikipedia British Journal of Mathematical and Statistical Psychology, Wikidata Q15708900 |
| British Manufacturing Industries series | ANGG8QEA7B | unknown | open | Wikipedia G. Phillips Bevan#DI2L |
| British Mathematical Olympiad | 7VBYSR0ZFV | definition | open | Wikipedia British Mathematical Olympiad, Wikidata Q4970326 |
| British Mathematical Olympiad Subtrust | 28RS47K8H9 | definition | open | Wikipedia British Mathematical Olympiad Subtrust, Wikidata Q4970323 |
| British Polling Council | JM7RWJ1WFT | definition | open | Wikipedia British Polling Council, Wikidata Q4970623 |
| British Social Attitudes Survey | 5YX3778FKZ | definition | open | Wikipedia British Social Attitudes Survey, Wikidata Q4971037 |
| British Society for Research into Learning Mathematics | NT45KK5BE3 | definition | open | Wikipedia British Society for Research into Learning Mathematics, Wikidata Q4971047 |
| British Society for the History of Mathematics | CFJD4VJWVC | definition | open | Wikipedia British Society for the History of Mathematics, Wikidata Q4971049 |
| British thermal unit | 8B9JFQR9GH | definition | open | Wikidata Q211580, ProofWiki Definition:British_Thermal_Unit |
| British Tunny | 7M64MESS43 | unknown | open | Wikipedia Cryptanalysis of the Lorenz cipher#KCY1 |
| Britton | D1Z5ST6A9C | unknown | open | Wikipedia List of incomplete proofs#36SQ |
| Britton's Lemma | 547F7H14EM | 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 2609.21116#36EQ |
| Britton's Lemma | N3BT6P8B13 | statement | open | Wikipedia HNN extension#PPDT |
| BRJ3W6EN2P | BRJ3W6EN2P | example | 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 2610.13295#931I |
| BRJ9B6509C | BRJ9B6509C | 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 2610.20663#XMH2 |
| BRJA78D1CT | BRJA78D1CT | example | open | napkin tex/H113/ring-flavors.tex#example-12 |
| Brjuno number | MEB85EM216 | object | open | Wikidata Q4971764, MathWorld BrjunoNumber, Wikipedia Brjuno number |
| BRK4HTQE61 | BRK4HTQE61 | example | 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 2104.12015#QOX2 |
| BRKCYTE9KW | BRKCYTE9KW | 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 2509.05577#3TQY |
| BRKHRH65CF | BRKHRH65CF | 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 2102.12931#BETZ |
| BRKNJ9B0HF | BRKNJ9B0HF | 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 2610.05506#ORH5 |
| BRKZ6C6NHG | BRKZ6C6NHG | example | open | lebl_ra ch-multivar-int.tex#example-4 |
| BRM737EWRC | BRM737EWRC | 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 2006.07610#FI14 |
| BRMAGHWE7R | BRMAGHWE7R | 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 1912.02769#XJ0A |
| BRMCX3PQ1S | BRMCX3PQ1S | exercise | open | ernst_ibl MAAPressVersion/TasteNumberTheory.tex#problem-1 |
| BRMD6AM0B7 | BRMD6AM0B7 | 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 2610.21494#F48X |
| BRMPSJ4G6A | BRMPSJ4G6A | 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 2609.32174#G74Z |
| BRMXDJRPMG | BRMXDJRPMG | 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 2609.28141#UCN3 |
| BRNA2BH8X8 | BRNA2BH8X8 | exercise | open | napkin tex/topology/metric-top.tex#ques-5 |
| BRNPTCRK52 | BRNPTCRK52 | 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 2609.23128#PIHZ |
| BRNXMFC40P | BRNXMFC40P | 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 2507.05923#1BOB |
| BRNZB31JD1 | BRNZB31JD1 | 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 2609.26133#IU3R |
| Broad incidence | 5RSCB529HM | 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 2609.34675#ZSSD |
| Broadcast encryption | BTBR528Y24 | definition | open | Wikipedia Broadcast encryption, Wikidata Q4972106 |
| Broadcast meteorologist | D1QP252F5T | unknown | open | Wikipedia Meteorology#BK8X |
| Broadened sampling at $A_{18}$ | 2KBSH68BCY | 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 2609.25120#HPN7 |
| Broadened sampling at $A_{20}$ | 5XEXK1006C | 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 2609.25120#NGFX |
| Broader Ryser and Lander conjectures | AEXYCG1Q12 | statement | open | Wikipedia Ryser's conjecture on circulant Hadamard matrices#XT40 |
| Brocard | ZR3X2T2GDT | definition | open | Wikipedia Glossary of number theory#DC6A |
| Brocard axis | 4JVSWV3XY2 | concept | open | Wikidata Q128799116, MathWorld BrocardAxis |
| Brocard axis | P54E0BZKD1 | unknown | open | Wikipedia Central line (geometry)#LJM3 |
| Brocard circle | JNRFG19727 | concept | open | Wikidata Q1932324, MathWorld BrocardCircle, Wikipedia Brocard circle |
| Brocard circle | KGPW55Q3C7 | definition | open | Wikipedia List of triangle topics#0BFJ |
| Brocard inellipse | PTJ6MKB66A | unknown | open | Wikidata Q3798419, MathWorld BrocardInellipse |
| Brocard points | 415CED5FX4 | definition | open | Wikipedia List of triangle topics#JX0N |
| Brocard points | CRWCSAMVCJ | concept | open | Wikidata Q923233, MathWorld BrocardPoints, Wikipedia Brocard points |
| Brocard triangle | 6SHRJ4H7GC | definition | open | Wikidata Q3071718, MathWorld FirstBrocardTriangle, Wikipedia Brocard triangle |
| Brocard triangle | FNAWK49RG7 | definition | open | Wikipedia List of triangle topics#DP76 |
| Brocard's conjecture | FFNCM04BF2 | conjecture | open | Wikipedia List of unsolved problems in mathematics#3FG2 |
| Brocard's conjecture | WV94CVC16Y | conjecture | open | Wikidata Q509160, MathWorld BrocardsConjecture, Wikipedia Brocard's conjecture |
| Brocard's problem | RHB3ASVXNS | conjecture | open | Wikipedia List of unsolved problems in mathematics#B2EX |
| Brocard's problem | ZR55HB7Z0Z | conjecture | open | Wikidata Q1052622, MathWorld BrocardsProblem, MathWorld BrownNumbers, Wikipedia Brocard's problem |
| Brocard–Ramanujan Diophantine equation | Q6476RRVYF | conjecture | open | Wikipedia List of things named after Srinivasa Ramanujan#LIK2 |
| Brockett's Necessary Condition | Z9GBS597A7 | 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 2609.33164#QEHZ |
| Brody's lemma | STSGVFJQK7 | statement | open | Wikipedia Bloch's principle#JUG4 |
| Broer–Kaup equations | Z4H4Y4059Y | unknown | open | Wikipedia List of partial differential equation topics#R21A |
| Brogan, Donna | 8EZWT5ENZX | topic | open | Wikipedia List of statisticians#KLS7 |
| BROJA union information lower bound | BEDMRSBST0 | 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 2610.13464#X260 |
| BROJA unique and union information | VZRNJDJZ38 | 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 2610.13464#QD3A |
| Brokard's theorem | W1VR9T3CGR | statement | open | Wikipedia Brokard's theorem, Wikidata Q131725508 |
| Broken bar | 5WN5SH8C6Y | unknown | open | Wikipedia Vertical bar#EM9Z |
| Broken diagonal | E2GDJVGN1W | definition | open | Wikipedia Broken diagonal, Wikidata Q19799636 |
| Broken power law | PAZZAJRVHP | statement | open | Wikipedia Power law#MTKM |
| Broken space diagonal | 2MJ50R9084 | definition | open | Wikipedia Broken space diagonal, Wikidata Q4973521 |
| Broken stick problem | QF5GHAYCCT | problem | open | Wikipedia Broken stick problem, Wikidata Q140243623 |
| Bromberg \& Ulcigrai | 7JHQ03N1V0 | 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 2609.33590#OH0O |
| Bromwich integral | MDF8WCRNFV | definition | open | Wikipedia List of complex analysis topics#A13G |
| Bromwich's inverse formula | JMHRFKNX67 | statement | open | Wikipedia Inverse Laplace transform#KU99 |
| Bronislaw Knaster | MQJ7ETTNVX | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#0V2X, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#22OR |
| Bronisław Knaster | 8GFE6ASXWN | topic | open | Wikipedia List of people by Erdős number#X767 |
| Bronisław Knaster | ESZ435ERVJ | topic | open | Wikipedia Bronisław Knaster, Wikidata Q721176 |
| Bronisław Knaster | W1PM68HEMQ | topic | open | Wikipedia List of mathematicians born in the 19th century#WTF9 |
| Bronshtein and Semendyayev | 7AA2KQMWVR | definition | open | Wikipedia Bronshtein and Semendyayev, Wikidata Q1278045 |
| Bron–Kerbosch algorithm | 27S5GXM3ZM | unknown | open | Wikidata Q2031707, MathWorld Bron-KerboschAlgorithm |