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Cyparissos Stephanos

{{Short description|Greek mathematician and university professor (1857–1917)}}

{{Infobox scientist

| name = Cyparissos Stephanos

| image = Das Fotoalbum für Weierstraß 038 (Cyparissos Stephanos).jpg

| birth_date = May 11, 1857

| birth_place = Kea, Greece

| death_date = {{death date and age|df=yes|1917|12|27|1857|5|11}}

| death_place = Athens, Greece

| nationality = Greek

| field = Mathematics

| work_institution = University of Athens

| alma_mater = University of Athens
Sorbonne

| doctoral_advisors = Vassilios Lakon
Jean Gaston Darboux

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| known_for = Desmic system
Geometry of the Spheres

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Kyparissos Stefanos ({{langx|el|Κυπάρισσος Στέφανος}}; May 11, 1857 - December 27, 1917) was a Greek author, mathematician, and professor. He was a pioneer in 20th century projective geometry. He studied with Vassilios Lakon. Stefanos furthered his studies in France following the same path of Timoleon Argyropoulos, Dimitrios Stroumpos, and Vassilios Lakon. In France, Stefanos studied with Jean Gaston Darboux, Camille Jordan, and Charles Hermite. Jean Gaston Darboux was his doctoral advisor. He wrote articles in the fields of mathematical analysis, higher algebra, theoretical mechanics, and topology. He published around twenty-five original works in European journals.{{cite web

|url=http://www.numdam.org/search/Stephanos,%20Cyparissos-1-qt/

|title= Stefanos Kyparissos

|publisher= The European Digital Mathematics Library

|author= Staff Writers

|date= September 27, 2022

|accessdate= September 27, 2022}} He is known for introducing Desmic system.{{sfn|Georgiadou|2013|p=446}}{{cite web

|url=http://pandektis.ekt.gr/pandektis/handle/10442/69096

|title= Stefanos Kyparissos

|publisher= Institute for Neohellenic Research

|author= Triandafillos Sklavenitis

|date= September 27, 2022

|accessdate= September 27, 2022}}

He received his PhD in 1878 from the National and Kapodistrian University of Athens. In 1879 he became a member of l'Société mathématique de France.{{cite journal|url=http://archive.numdam.org/ARCHIVE/BSMF/BSMF_1916__44_/BSMF_1916__44__v1_0/BSMF_1916__44__v1_0.pdf|title= État de la S.M.F. au commencement de l'année 1916|journal=Bulletin de la Société Mathématique de France|volume=tome 44|year=1916}} In the early 1880s he studied mathematics in Paris and published many papers in various journals.{{cite book|chapter=Stephanos, Cyparissos| title=Catalogue of Scientific Papers: 3rd ser. 1874–1883| year=1896|pages=491–492|chapter-url=https://books.google.com/books?id=MBkfAQAAMAAJ&pg=PA491}} He returned to Greece and in 1884 was appointed honorary professor and in 1890 regular professor at the National and Kapodistrian University of Athens.{{sfn|Lützen|2001|p=232}} He was also a professor at the National Technical University of Athens and the Hellenic Naval Academy. Stefanos was an invited speaker at the International Congress of Mathematicians in 1897 at Zurich, in 1900 at Paris, in 1904 at Heidelberg, in 1908 at Rome, and in 1912 at Cambridge (England).{{cite news |author=Athansios Lipordezis |title=Stefanos Kyparissos|url=http://www.karatheodori.gr/images/%CE%95%CE%A6%CE%97%CE%9C%CE%95%CE%A1%CE%99%CE%94%CE%91_%CE%9A.%CE%9A%CE%91%CE%A1%CE%91%CE%98%CE%95%CE%9F%CE%94%CE%A9%CE%A1%CE%97_7%CE%BF_%CE%A4%CE%95%CE%A5%CE%A7%CE%9F%CE%A3.pdf |work=The Constantin Carathéodory Society's Newspaper 7th Edition (Komotini, Gr), Page 2 |agency= Museum of Constantin Carathéodory |date=|access-date=September 27, 2022}}

History

Stefanos was born on the island of Kea, where his father worked as a school teacher. His brother was {{interlanguage link|Clon Stefanos|el}}, a noted anthropologist. Kyparissos went to school in Syros and pursued studies at the University of Athens. He was awarded a PhD in mathematics in 1878. Stefanos also traveled to Paris and studied at the Sorbonne.{{sfn|Georgiadou|2013|p=446}} His doctoral advisor was Jean Gaston Darboux. He also studied with world-renowned mathematicians Camille Jordan, and Charles Hermite.{{sfn|Georgiadou|2013|p=446}} He obtained a doctorate from the Sorbonne in 1880. His dissertation was On the Theory of Binary Forms and Elimination (Sur la Theorie des Formes Binaires et sur l'Elimination).{{sfn|Georgiadou|2013|p=446}}

While Stefanos was in Paris he met Hermann Schwarz. The two discussed Karl Weierstrass's hypercomplex numbers theorem. In 1883, Stefanos proved that the theorem fails when three-dimensional hypercomplex numbers are applied.{{sfn|Lützen|2001|p=232}} Stefanos returned to Athens in 1884. He became professor at the University of Athens. He also taught at the elite National Technical University of Athens and Evelpidon. He was the rector of the University of Athens 1908-1909.{{sfn| Skintzopoulou |1918|pp=2}}{{sfn|Stefanidou|1952|pp=23-25}}

He represented Greece in countless international mathematical congresses. He was a member of various mathematical societies. He was the founder of the agricultural society. He was the founder and director of the first school of commerce in Athens. He co-founded the Athens Forestry Preservation Society (Φιλοδασικής Εταιρείας) and the Society of Commerce. He was also the organizer and president of the teachers association in Athens.{{sfn| Skintzopoulou |1918|pp=2-3}}{{sfn|Stefanidou|1952|pp=25}}

Literary works

class="wikitable"

|+Books and Articles authored by Kyparissos Stefanos

!Date

!Title

!Title in English

1879

|[http://www.numdam.org/item/BSMA_1879_2_3_1_424_1.pdf Sur les Systèmes Desmiques de Trois Tétraèdres]

|On the Desmic system of Three Tetrahedrons

1881

|[https://books.google.com/books?id=qy1LAAAAYAAJ&dq=sur+une+configuration+remarquable+de+cercles+dans+l%27espace+stephanos&pg=PA313 Sur une Configuration Remarquable de Cercles Dans L'Espaces]

|[https://books.google.com/books?id=xOXjAAAAMAAJ&dq=sur+une+configuration+remarquable+de+cercles+dans+l%27espace+stephanos&pg=PA235 The Configuration of Circles in Space]{{sfn| Stephanos |1881|pp=578-580}}

1882

|[https://books.google.com/books?id=oPhPAAAAYAAJ&dq=Sur+l%E2%80%99+Int%C3%A9gration+d%E2%80%99+une+Function+Rationnelle+Homog%C3%A9ne.+stephanos&pg=PA1290 Sur l’ Intégration d’ une Function Rationnelle Homogéne]

|Integration of a Homogeneous Rational Function

1883

|[https://books.google.com/books?id=258KAAAAYAAJ&dq=Sur+une+configuration+remarquable+de+cercles+dans+l%27espace%22.+Comptes+Rendus&pg=PA26 Sur la Théorie des Formes Binaires et Sur l'Èlimination]

|Theory of Binary Forms and Elimination

1883

|[https://books.google.com/books?id=pGLGfAfBXv0C&dq=Sur+les+Relations+Qui+Existent+Entre+les+stephanos&pg=PA202 Sur les Relations Qui Existent Entre les Convariants et les Invariants de Caractére Pair d’ Une Forme Binaire du Sixiéme Ordre]

|On the Relations that Exist Between the Convariants and the Even-Character Invariants of a Sixth-Order Binary Form.

1883

|[https://books.google.com/books?id=rCtEAAAAYAAJ&dq=Sur+le+Syst%C3%A9me+Complet+des+Combinaisons+de+Deux+Formes+Binaires+Biquadratiques&pg=PA814 Sur le Systéme Complet des Combinants de Deux Formes Binaires Biquadratiques]

|On the Complete System of Combinations of two Forms Biquadratic Binaries

1883

|[https://books.google.com/books?id=ddNEAQAAMAAJ&dq=Sur+un+Probl%C3%A9me+de+la+Theorie+d%27%C3%89limination+stephanos&pg=PA1050 Sur un Probléme de la Theorie d’ Èlimination'']

|Theory of Elimination

1900

|[http://sites.mathdoc.fr/JMPA/PDF/JMPA_1900_5_6_A4_0.pdf Sur une Extension du Calcul des Substitutions Linéaires]

|Extension of Calculus Linear Substitution

1906

|[https://babel.hathitrust.org/cgi/pt?id=mdp.39015036987751&view=1up&seq=146&skin=2021&q1=%20Sur%20les%20forces%20donnant%20lieu%20%C3%A0%20des%20trajectoires%20coniques Sur les Forces Donnant Lieu à des Trajectories Coniques]

|[https://books.google.com/books?id=ntBXAAAAYAAJ&dq=%22Sur+les+forces+donnant+lieu+%C3%A0+des+trajectories+coniques++stephanos&pg=PA58 The Forces giving Rise to Conical Trajectories]

See also

References

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Bibliography

  • {{cite book |last1= Stefanidou |first1= Micheal K.|title= Εθνικόν και Καποδιστριακόν Πανεπιστήμιον Αθηνών Εκατονταετηρίς 1837-1937 Ιστορία της Φυσικομαθηματικής Σχολής |trans-title= National and Kapodistrian University of Athens Centenary 1837-1937 History of the Faculty of Physics and Mathematics | location= Athens, Greece |publisher=National and Kapodistrian University of Athens |year= 1952 |url=http://jupiter.chem.uoa.gr/pchem/lab/Istoria_FMS-B.pdf|isbn= |page=}}
  • {{cite book |last1= Volkert |first1= Klaus |last2= Menghini |first2= Marta |last3= Barbin |first3= Évelyne |title=Descriptive Geometry, The Spread of a Polytechnic Art The Legacy of Gaspard Monge|location= Cham, Switzerland|publisher =Springer International Publishing|year=2019 |url=https://books.google.com/books?id=KxegDwAAQBAJ&dq=Ioannis+Papadakis+astronomer&pg=PA125|isbn= 9783030148089 |pages=}}
  • {{Citation | last1=Cajori | first1=Florian | author1-link=Florian Cajori | title=A History of Mathematics | url=https://books.google.com/books?id=mGJRjIC9fZgC | publisher=Chelsea | location=New York | isbn=978-0-8284-0203-3 | year=1999}}
  • {{cite book |last1= Georgiadou |first1= Maria |title=Constantin Carathéodory Mathematics and Politics in Turbulent Times|location=Heidelberg, Germany|publisher = Springer |year=2013 |url=https://books.google.com/books?id=lpprCQAAQBAJ&dq=Cyparissos+Stephanos&pg=PA446|isbn= 9783642185625 |pages=}}
  • {{cite journal |last1= Lockyer |first1= Sir Norman |date=October 4, 1900 |title=Mathematics at the British Association |url= https://books.google.com/books?id=E45FAAAAYAAJ&dq=Cyparissos+Stephanos&pg=PA561|journal=Nature |volume=62 |issue=1614 |pages= |doi= |access-date=}}
  • {{cite book |last1= Lützen |first1= Jesper |title=Around Caspar Wessel and the Geometric Representation of Complex Numbers Proceedings of the Wessel Symposium at The Royal Danish Academy of Sciences and Letters, Copenhagen, August 11-15 1998. Invited Papers|location=Copenhagen, Denmark|publisher = C.A. Reitzels |year=2001 |url=https://books.google.com/books?id=BUxedd5rxFoC&dq=Cyparissos+Stephanos&pg=PA232|isbn= 9788778762368 |pages=}}
  • {{Citation | last1=Stephanos | first1=Cyparissos | title= Sur les systèmes desmiques de trois tétraèdres | url=http://www.numdam.org/item?id=BSMA_1879_2_3_1_424_1 |jfm=11.0431.01 | year=1879 | journal=Bulletin des sciences mathématiques et astronomiques |series=Série 2 | volume=3 | issue=1 | pages= 424–456 }}.
  • {{cite journal| last1=Stephanos | first1=Cyparissos|title=Sur une extension du calcul des substitutions linéaires|journal=Journal de Mathématiques Pures et Appliquées|year=1900| volume=6|pages=73–128|url=https://eudml.org/doc/235885}}
  • {{cite journal| last1=Stephanos | first1=Cyparissos| url=https://eudml.org/doc/85041|title=Sur les systèmes desmiques de trois tétraèdres|journal=Bulletin des Sciences Mathématiques et Astronomiques|year=1879|volume=3|issue=1|pages=424–456}}
  • {{cite journal| last1=Stephanos | first1=Cyparissos|title=Sur les forces donnant lieu à des trajectories coniques|journal=Crelle's Journal|volume=131|year=1906|pages=136–151|url=http://babel.hathitrust.org/cgi/pt?id=mdp.39015036987751;view=1up;seq=144}}
  • {{cite journal|last1=Stephanos | first1=Cyparissos|title=Sur une configuration remarquable de cercles dans l'espace|journal=Comptes Rendus|volume=93|pages=578–580|year=1881}}
  • {{cite book |last1= Skintzopoulou |first1= A.S.|title= Αρχιμήδης Μηνιαίο Περιοδικό Σύγγραμμα του Ελληνική Πολυτεχνική Συλλόγου Ετος ΙΘ Αριθ. 1 |trans-title=Archimedes Monthly Journal The Hellenic Polytechnic Society Volume ΙΘ Number 1 | location= Athens, Greece |publisher= Archimedes Society |year= 1918 |url=https://dspace.lib.ntua.gr/xmlui/bitstream/handle/123456789/1394/archimedes_1918_y19_0001_0003.pdf?sequence=1&isAllowed=y|isbn= |page=}}

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{{DEFAULTSORT:Stephanos, Cyparissos}}

Category:1857 births

Category:1917 deaths

Category:20th-century Greek mathematicians

Category:Greek Roman Catholics

Category:National and Kapodistrian University of Athens alumni

Category:Academic staff of the National and Kapodistrian University of Athens

Category:People from Kea (island)

Category:19th-century Greek scientists

Category:19th-century Greek educators

Category:19th-century Greek mathematicians