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निकोलाय लोबाचेव्स्की

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निकोलाय लोबाचेव्स्की
Nikolai Lobachevsky

लेव क्रियुकोव द्वारा चित्रित (c. 1843)
Born December 1, 1792[१][२]
Makaryev, Makaryevsky uezd, Nizhny Novgorod Governorate,[३][४] Russian Empire
(now Makaryevo, Nizhny Novgorod Oblast, Russia)
Died February 24, 1856 (aged 63)
Kazan, Kazan Governorate, Russian Empire
(now Tatarstan, Russia)
Nationality Russian
Fields Geometry
Alma mater Kazan University
Academic advisors J. C. M. Bartels[५][६]
Notable students Nikolai Brashman[५]
Known for Lobachevskian geometry

निकोलाय इवानोविच लोबाचेवस्की (Nikolai Ivanovich Lobachevsky (साँचा:Lang-rus; (1 दिसम्बर 1792 – 24 फरवरी 1856) रूस के गणितज्ञ तथा ज्यामितिविद छेलै। उ अतिपरवलयिक ज्यामिति के क्षेत्र म अपनो योगदान के लेली प्रसिद्ध छै, जेकरा लोबाचेवस्की ज्यामिति (Lobachevskian geometry) भी कहै छै।[७]

  1. This is the date given by V. F. Kagan's 1957 book N. Lobachevsky and His Contribution to Science (first published in Russian in 1943), p. 26, and A. A. Andronov's 1956 article "Где и когда родился Н.И.Лобачевский" ("Where and when was Lobachevsky born?") (the latter gives साँचा:OldStyleDate).
  2. Older sources in Russian—e.g., A. F. Popov, "Воспоминания о службе и трудах проф. Казанского университета Н. И. Лобачевского" ("Memoirs of the Service and Work of N. I. Lobachevsky"), 1857—give 1793 rather than 1972, while the Dictionary of Scientific Biography (1970) gives December 2, 1792. Further information on Lobachevsky's birthdate can be found in: Athanase Papadopoulos (ed.), Nikolai I. Lobachevsky. Pangeometry, European Mathematical Society. 2010, pp. 206–7.
  3. See "К 150-летию со дня смерти Н.И.Лобачевского" ("On the 150th anniversary of the death of N. Lobachevsky") by G. M. Polotovsky, PDF page 3: "Н.И.Лобачевский родился в Макарьевском уезде Нижегородской губернии в 1793 году" (quoting A. F. Popov (1857)); page 4: "[В.Ф.Каган (1943)] местом рождения называет Макарьев".
  4. Other sources in Russian—e.g., A. A. Andronov (1956)—give the city of Nizhny Novgorod rather than the Governorate as his birthplace; see also Lobachevsky's biography at the website of the Lobachevsky Nizhny Novgorod State University Museum Archived २०१५-०९-२६ at the Wayback Machine and Andrey Kalinin's article "Чье имя носит университет" ("After whose name the University has been named") Archived २०१४-१०-१२ at the Wayback Machine.
  5. ५.० ५.१ साँचा:MathGenealogy
  6. Athanase Papadopoulos (ed.), Nikolai I. Lobachevsky. Pangeometry, European Mathematical Society. 2010, p. 208.
  7. लुआ त्रुटि मोड्यूल:Citation/CS1/Utilities में पंक्ति 38 पर: bad argument #1 to 'ipairs' (table expected, got nil)।