1. Bohl Piers Bohl. Born 23 Version for printing. Piers Bohl s father was a merchantand his background was not an academic one. He first http://www-history.mcs.st-andrews.ac.uk/Mathematicians/Bohl.html

Piers Bohl Born: 23 Oct 1865 in Walka, Livonia (now Valka, Latvia) Died: 25 Dec 1921 in Riga, Latvia Show birthplace location Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index Version for printing Piers Bohl 's father was a merchant and his background was not an academic one. He first studied at Walka, then he went to the German school in Viljandi in Estonia. In 1884 Bohl remained in Estonia, entering the Department of Physics and Mathematics of the University of Dorpat. He graduated in 1887 with a degree in mathematics having won a Gold Medal for an essay he wrote on The Theory of Invariants of Linear Differential Equations in 1886. In 1893 Bohl was awarded his Master's degree. This was for an investigation of quasi-periodic functions. Although Bohl was the first to study these functions the name is not due to him but is due to Esclangon who studied them later. Esclangon 's work was in fact completely independent of Bohl's. The notion of quasi-periodic functions was generalised still further by Harald Bohr when he introduced almost periodic functions.

2. References For Bohl References for the biography of Piers Bohl http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

3. October 2001 21 William Leonard Ferrar 22 Rolf Herman Nevanlinna 23 Piers Bohl 24 Aleksandr Gelfond 25 variste Galois 26 Shiingshen Chern 27 http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

4. Bohl Biography of Piers Bohl (18651921) http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

5. FCT'01 Call For Papers Piers Bohl proved in 1904 the first ever fixedpoint theorem. In 2001 Riga becomes 800 years old. http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

6. Bohl Piers Bohl. Born 23 Oct 1865 Piers Bohl s father was a merchant and hisbackground was not an academic one. He first studied at http://intranet.woodvillehs.sa.edu.au/pages/resources/maths/History/Bhl.htm

7. Mathematics In Latvia Through The Centuries, By Daina Taimina And Piers Bohl was born in the little town of Valka, on the LatvianEstonian border, in a family of Jewish merchants. http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

8. Biography Of Bohl, Piers Biography of Bohl, Piers http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

9. The Mathematics Genealogy Project - Piers Bohl Piers Bohl Biography. Ph.D. Tartu University 1893 http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

10. Full Alphabetical Index 398) B cher, Maxime (564*) Bochner, Salomon (1814*) Boethius, Anicus (1033*) Boggio, Tommaso (436*) Bohl, Piers (442) Bohr, Harald (742 http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

11. Lebensdaten Von Mathematikern 1918) Bochner, Salomon (1899 1982) Boethius, Anicius Manlius Severinus (475/480 - 524/525) Bohl, Piers (1865 - 1921) von Bohnenberger http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

12. Neue Seite 1 Boethius, Anicius Manlius Severinus (475/480 524/525) Bohl, Piers (1865 - 1921) von Bohnenberger, Johann Gottlieb Friedrich (1765 - 1831) http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

13. Bohl Biography of piers bohl (18651921) piers bohl s father was a merchant andhis background was not an academic one. He first studied at Walka, http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Bohl.html

Piers Bohl Born: 23 Oct 1865 in Walka, Livonia (now Valka, Latvia) Died: 25 Dec 1921 in Riga, Latvia Show birthplace location Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index Version for printing Piers Bohl 's father was a merchant and his background was not an academic one. He first studied at Walka, then he went to the German school in Viljandi in Estonia. In 1884 Bohl remained in Estonia, entering the Department of Physics and Mathematics of the University of Dorpat. He graduated in 1887 with a degree in mathematics having won a Gold Medal for an essay he wrote on The Theory of Invariants of Linear Differential Equations in 1886. In 1893 Bohl was awarded his Master's degree. This was for an investigation of quasi-periodic functions. Although Bohl was the first to study these functions the name is not due to him but is due to Esclangon who studied them later. Esclangon 's work was in fact completely independent of Bohl's. The notion of quasi-periodic functions was generalised still further by Harald Bohr when he introduced almost periodic functions.

14. References For Bohl References for the biography of piers bohl. AD Myskis and IM Rabinovic,Mathematician piers bohl from Riga With a commentary by the grand master MM http://www-groups.dcs.st-and.ac.uk/~history/References/Bohl.html

References for Piers Bohl Version for printing Biography in Dictionary of Scientific Biography (New York 1970-1990). Books: A D Myskis and I M Rabinovic, Mathematician Piers Bohl from Riga: With a commentary by the grand master M M Botvinnik on the chess play of P Bohl (Russian), Izdat. Zinatne (Riga, 1965). Articles: Yu M Gaiduk, Evaluation of the scientific work of Piers Bohl by his contemporaries (Russian), Tartu State University, History of development, training of personnel, and scientific research II (Tartu, 1982), 28-39. Jahresberichte der Deutschen Mathematiker-Vereinigung L L Kul'vetsas, P Bohl's fourth thesis and Hilbert's sixth problem (Russian), Studies in the history of physics and mechanics, 1986 (Moscow, 1986), 62-93. A D Myskis and I M Rabinovic, The first proof of a fixed-point theorem for a continuous mapping of a sphere into itself, given by the Latvian mathematician P G Bohl (Russian), Uspekhi matematicheskikh nauk (NS) Main index Birthplace Maps Biographies Index History Topics ... Anniversaries for the year JOC/EFR February 1997 School of Mathematics and Statistics University of St Andrews, Scotland

15. The Mathematics Genealogy Project - Piers Bohl Select a mirror NDSU (main) AMS Bielefeld Ole Miss IMPA. piers bohl BiographyPh.D. Tartu University 1893. Dissertation Über die http://genealogy.math.ndsu.nodak.edu/html/id.phtml?id=46085

16. B Index Bloch, André (143) Bobillier, Etienne (398) Bôcher, Maxime (557*) Bochner, Salomon(133*) Boethius, Anicus (209*) Boggio, Tommaso (436) bohl, piers (442) Bohr http://intranet.woodvillehs.sa.edu.au/pages/resources/maths/History/B.htm

17. Gale-Edit - Dictionary Of Science Biography - Scientists By Name Anicius Manlius Severinus; Bogdanov, Aleksandr Aleksandrovich; Bogdanov,Aleksei Alekseevich; Boguslavsky, Palm Heinrich Ludwig von; bohl, piers; Bohn, http://www.gale-edit.com/ndsb/scientists.htm

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18. Mathematics In Latvia Through The Centuries, By Daina Taimina And Ingrida Henina The higher mathematics textbook written by piers bohl included analytic geometry There has already been mentioned the mathematics professor piers bohl. http://www.math.cornell.edu/~dtaimina/mathinlv.html

Mathematics in Latvia Through the Centuries Daina Taimina , Cornell University Ingrida Henina , University of Latvia ( please send comments to dt34@cornell.edu The very first written documents about the history of Latvia (written in Latvia in the German language) are Henricus Lettus' Chronicles of Livonia. Henricus was a German monk who came with crusaders in the 12th century to bring Christianity to the Baltic lands. In the Chronicles there is nothing about the mathematical knowledge of the ancient Latvians. All we can tell now about their using numbers and calculations is what we find from the oral tradition in ancient Latvian folk songs (dainas) and folk tales, and from archaeological sources. In 1914 Professor J. Zalktis counted which were the most used numbers in ancient Latvian folk songs. The most often used number was 3 (like it is also in many folk traditions), and following 3 in order of frequency 2, 9, 5, 6, 1, 100, 200, 3 times 9 and only then comes the Biblical number 7, which was expected to be used more often. In the Chronicles there was not mentioned that the first school in Riga was founded in 1211, although Chronicles were describing time period from 1186 till 1227. About counting in that time one can judge from amounts of money mentioned there. There is an evidence of geometry in ancient Latvian signs. Circle, square and regular triangle were well known geometric shapes. For example, being Northern nation and mostly peasants Latvians always had a very special relationship with Sun. There were used several geometric shapes for Sun. Simplest one was a circle. But usually the Sun sign was based on an octagon or a square divided in 9 parts. Among those ancient signs we can find also a sign of infinity two intertwining spirals.

19. Biography Of: Bohl, Piers F · G · H · I · J · K · L · M · N · O · P · Q · R · S · T ·U · V · W · X · Y · Z. Biography of bohl, piers. http://www.biographycorner.com/biography_b/bohl-piers_biography_ec11b924.html

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