David Emmanuel (31 January 1854 – 4 February 1941) was a

Romanian Romanian may refer to: *anything of, from, or related to the country and nation of Romania **Romanians, an ethnic group **Romanian language, a Romance language *** Romanian dialects, variants of the Romanian language ** Romanian cuisine, tradition ...

Jew Jews ( he, יְהוּדִים, , ) or Jewish people are an ethnoreligious group and nation originating from the Israelites Israelite origins and kingdom: "The first act in the long drama of Jewish history is the age of the Israelites""T ...

ish

mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History On ...

and member of the Romanian Academy, considered to be the founder of the modern mathematics school in Romania. Born in

Bucharest Bucharest ( , ; ro, București ) is the capital and largest city of Romania, as well as its cultural, industrial, and financial centre. It is located in the southeast of the country, on the banks of the Dâmbovița River, less than north of ...

, Emmanuel studied at

Gheorghe Lazăr Gheorghe Lazăr (5 June 1779 – 17 September 1823), born and died in Avrig, Sibiu County, was a Transylvanian, later Romanian scholar, the founder of the first Romanian language school in Bucharest, 1817. Biography A Habsburg Empire subject, ...

and

Gheorghe Șincai Gheorghe Șincai (; February 28, 1754 – November 2, 1816) was a Romanian historian, philologist, translator, poet, and representative of the Enlightenment-influenced Transylvanian School. As the director of Greek Catholic education in Transylv ...

high schools. In 1873 he went to

Paris Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), ma ...

, where he received his

Ph.D. A Doctor of Philosophy (PhD, Ph.D., or DPhil; Latin: or ') is the most common degree at the highest academic level awarded following a course of study. PhDs are awarded for programs across the whole breadth of academic fields. Because it is ...

in mathematics from the

University of Paris , image_name = Coat of arms of the University of Paris.svg , image_size = 150px , caption = Coat of Arms , latin_name = Universitas magistrorum et scholarium Parisiensis , motto = ''Hic et ubique terrarum'' (Latin) , mottoeng = Here and a ...

(Sorbonne) in 1879 with a thesis on ''Study of abelian integrals of the third species'', becoming the second Romanian to have a Ph.D. in mathematics from the Sorbonne (the first one was

Spiru Haret Spiru C. Haret (; 15 February 1851 – 17 December 1912) was a Romanian mathematician, astronomer, and politician. He made a fundamental contribution to the ''n''-body problem in celestial mechanics by proving that using a third degree approx ...

). The thesis defense committee consisted of Victor Puiseux (advisor), Charles Briot, and

Jean-Claude Bouquet Jean-Claude Bouquet (7 September 1819 – 9 September 1885) was a French mathematician who worked with Charles Briot on doubly periodic functions. Bouquet became friends with Briot at the Lycée and wanted to become a mathematics teacher. Biogr ...

. In 1882, Emmanuel became a professor of superior algebra and function theory at the Faculty of Sciences of the

University of Bucharest The University of Bucharest ( ro, Universitatea din București), commonly known after its abbreviation UB in Romania, is a public university founded in its current form on by a decree of Prince Alexandru Ioan Cuza to convert the former Princel ...

. Here, in 1888, he held the first courses on

group theory In abstract algebra, group theory studies the algebraic structures known as group (mathematics), groups. The concept of a group is central to abstract algebra: other well-known algebraic structures, such as ring (mathematics), rings, field ...

and on

Galois theory In mathematics, Galois theory, originally introduced by Évariste Galois, provides a connection between field theory and group theory. This connection, the fundamental theorem of Galois theory, allows reducing certain problems in field theory to ...

, and introduced

set theory Set theory is the branch of mathematical logic that studies sets, which can be informally described as collections of objects. Although objects of any kind can be collected into a set, set theory, as a branch of mathematics, is mostly conce ...

in Romanian education. Among his students were

Anton Davidoglu Anton Davidoglu (June 30, 1876–May 27, 1958) was a Romanian mathematician who specialized in differential equations. He was born in 1876 in Bârlad, Vaslui County, the son of Profira Moțoc and Doctor Cleante Davidoglu. His older brother was ...

Alexandru Froda Alexandru Froda (July 16, 1894 – October 7, 1973) was a Romanian mathematician with contributions in the field of mathematical analysis, algebra, number theory and rational mechanics. In his 1929 thesis he proved what is now known as Froda's ...

, Traian Lalescu,

Grigore Moisil Grigore Constantin Moisil (; 10 January 1906 – 21 May 1973) was a Romanian mathematician, computer pioneer, and titular member of the Romanian Academy. His research was mainly in the fields of mathematical logic ( Łukasiewicz–Moisil algebra ...

, ,

Miron Nicolescu Miron Nicolescu (; August 27, 1903 – June 30, 1975) was a Romanian mathematician, best known for his work in real analysis and differential equations. He was President of the Romanian Academy and Vice-President of the International Mathematical ...

, Octav Onicescu,

Dimitrie Pompeiu Dimitrie D. Pompeiu (; – 8 October 1954) was a Romanian mathematician, professor at the University of Bucharest, titular member of the Romanian Academy, and President of the Chamber of Deputies. Biography He was born in 1873 in Broscăuți, ...

Simion Stoilow Simion Stoilow or Stoilov ( – 4 April 1961) was a Romanian mathematician, creator of the Romanian school of complex analysis, and author of over 100 publications. Biography He was born in Bucharest, and grew up in Craiova. His father, Colonel ...

, and Gheorghe Țițeica. Emmanuel had an important role in the introduction of modern mathematics and of the rigorous approach to mathematics in Romania. Emmanuel was the president of the first Congress of Romanian Mathematicians, held in 1929 in

Cluj ; hu, kincses város) , official_name=Cluj-Napoca , native_name= , image_skyline= , subdivision_type1 = County , subdivision_name1 = Cluj County , subdivision_type2 = Status , subdivision_name2 = County seat , settlement_type = City , le ...

. He died in Bucharest in 1941. A street in the Dorobanți neighborhood of Bucharest is named after him.

Publications

* *

References

* {{DEFAULTSORT:Emmanuel, David 1854 births 1941 deaths Scientists from Bucharest Romanian Sephardi Jews Gheorghe Lazăr National College (Bucharest) alumni University of Paris alumni Romanian mathematicians Academic staff of the University of Bucharest Honorary members of the Romanian Academy Mathematical analysts Romanian expatriates in France