| human | Q5 |
| P4252 | All-Russian Mathematical Portal ID | 8675 |
| P227 | GND ID | 1067830391 |
| P2671 | Google Knowledge Graph ID | /g/11cm0ms8pv |
| P269 | IdRef ID | 077702468 |
| P213 | ISNI | 0000000109498157 |
| P244 | Library of Congress authority ID | n85229787 |
| P1006 | Nationale Thesaurus voor Auteursnamen ID | 15066866X |
| P1207 | NUKAT ID | n97015604 |
| P3987 | SHARE Catalogue author ID | 60145 |
| P214 | VIAF ID | 3918121 |
| P10832 | WorldCat Entities ID | E39PBJktkGyWTvRxwMDBXM8V4q |
| P1556 | zbMATH author ID | lifanov.ivan-k |
| P512 | academic degree | Doctor of Sciences in Physics and Mathematics | Q17281097 |
| P945 | allegiance | Russia | Q159 |
| P166 | award received | Merited Scientist of the Russian Federation | Q4187996 |
| Order "For Service to the Homeland in the Armed Forces of the USSR", 3rd class | Q18204156 | ||
| P27 | country of citizenship | Russia | Q159 |
| Soviet Union | Q15180 | ||
| P184 | doctoral advisor | Vladimir Ponomarev | Q4371957 |
| P69 | educated at | MSU Faculty of Mechanics and Mathematics | Q2367115 |
| P108 | employer | Zhukovsky Air Force Engineering Academy | Q1934904 |
| P101 | field of work | numerical analysis | Q11216 |
| topology | Q42989 | ||
| integral equation | Q580101 | ||
| P735 | given name | Ivan | Q21104340 |
| Ivan | Q21104340 | ||
| P1412 | languages spoken, written or signed | Russian | Q7737 |
| P6104 | maintained by WikiProject | WikiProject Mathematics | Q8487137 |
| P106 | occupation | mathematician | Q170790 |
| P119 | place of burial | Khovanskoye Cemetery | Q4498622 |
| P21 | sex or gender | male | Q6581097 |
| Q4371957 | Vladimir Ponomarev | doctoral student | P185 |
| Лифанов, Иван Кузьмич | wikipedia |
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