His friend Farkas Wolfgang Bolyai with whom Gauss had sworn " brotherhood and the banner of truth " as a student, had tried in vain for many years to prove the parallel postulate from Euclid's other axioms of geometry.

After seeing it, Gauss wrote to Farkas Bolyai: " To praise it would amount to praising myself.

* 1775 – Farkas Bolyai, Hungarian mathematician ( d. 1856 )

Bolyai was born in the Transylvanian town of Kolozsvár ( Klausenburg ), then part of the Habsburg Empire ( now Cluj-Napoca in Romania ), the son of Zsuzsanna Benkő and the well-known mathematician Farkas Bolyai.

In geometry, the Wallace – Bolyai – Gerwien theorem, named after William Wallace, Farkas Bolyai and Paul Gerwien, states that any two simple polygons of equal area are equidecomposable ; i. e. one can cut the first into finitely many polygonal pieces and rearrange the pieces to obtain the second polygon.

Farkas Bolyai, father of János Bolyai, first formulated the question.

According to other sources, Farkas Bolyai and Gerwien had independently proved the theorem in 1833 and 1835, respectively.

hu: Bolyai Farkas tétele

* probable date-Paul Gerwien proves the Bolyai – Gerwien theorem formulated by Farkas Bolyai: that any two simple polygons of equal area are equidecomposable.

Other notable doctoral students were Johann Christian Polycarp Erxleben, Johann Pfaff ( doctoral adviser of Carl Friedrich Gauss ), Johann Tobias Mayer, Heinrich Wilhelm Brandes, Farkas Bolyai ( father of János Bolyai ), and Georg Klügel.

# REDIRECT Farkas Bolyai

* Further references on Farkas Bolyai

ca: Farkas Bolyai

de: Farkas Wolfgang Bolyai

es: Farkas Bolyai

eo: Farkas Bolyai

fr: Farkas Bolyai

* Andy Farkas, former American football player, who, along with 9 other players, holds the record for the longest pass caught in NFL history

* 1949 – Bertalan Farkas, Hungarian astronaut

* Jacob Farkas (" Ze ' ev ") – cartoonist.

* Bertalan Farkas – the first Hungarian cosmonaut

Philip Farkas ( March 5, 1914 – December 21, 1992 ) was the principal horn player in the Chicago Symphony Orchestra for many years ; he left in 1960 to join the music faculty at Indiana University Bloomington.

Jeney first studied piano and attended Pongrácz's composition classes at the Debrecen Secondary Music School, later continuing composition studies with Ferenc Farkas at the Liszt Ferenc Academy of Music in Budapest ( 1961 – 66 ), and the pursuing postgraduate studies with Goffredo Petrassi at the Accademia Nazionale di Santa Cecilia in Rome ( 1967 – 68 ).

* Gyula Farkas ( linguistic scientist ) ( 1894 – 1958 ), literature historian

Karl Farkas ( 28 October 1893, in Vienna – 16 May 1971, in Vienna ) was an Austrian actor and cabaret performer.

* Philip Farkas ( 1914 – 1992 ), principal horn of the Chicago Symphony, left what became Schilke Music Products in 1956 and joined with Holton, designing the Holton Farkas Model french horn.

* Martin Farkas – vocals

They both have 76424 digits and were found in November 2009 by Zoltán Járai, Gabor Farkas, Timea Csajbok, János Kasza and Antal Járai.

Farkas, along with Soviet cosmonaut Valeri Kubasov, was launched into space on Soyuz 36 from Baikonur Cosmodrome on May 26, 1980, at 18: 20 ( GMT ).

After 7 days, 20 hours and 45 minutes, and having completed 124 orbits, Farkas and Kubasov returned to Earth, landing 140 km southeast of Dzhezkazgan.

In this text, Farkas also recommends that the lower jaw be protruded so that the upper and lower teeth are aligned.

Some contemporary artists are also experimenting with impossible figures, for example, Jos de Mey, Shigeo Fukuda, Sandro del Prete, István Orosz ( Utisz ), Guido Moretti, Tamás F. Farkas and Mathieu Hamaekers.

Nancy Jordan Fako has also written a biography about his life: Philip Farkas and His Horn-A Happy, Worthwhile Life.

Farkas was also a music Professor ; he taught at Indiana University, Northwestern University, Cleveland Institute, Kansas City Conservatory, De Paul University, and Roosevelt University.

Farkas founded a publishing company ; Wind Music Inc … He also partnered with Chicago trumpeter Renold Schilke in the founding of Schilke Music Products and as consultants to the musical instrument division of Yamaha.

Farkas also asked Bánáthy to organize a Scout Troop for the young men, 19 years and older, which was a common practice within the Hungarian Scout Association at the time.

A Hungarian translation of the fable by Dezső Kosztolányi was also set for mezzo-soprano, four-part mixed chorus and 4 guitars or piano by Ferenc Farkas in 1977.

He also performs with King's X partner Ty Tabor, along with former Galactic Cowboys members Wally Farkas and Alan Doss, as a group called The Jibbs.

A good stepping stone leads to many others, so some of the most powerful results in mathematics are known as lemmata, such as Bézout's lemma, Urysohn's lemma, Dehn's lemma, Euclid's lemma, Farkas ' lemma, Fatou's lemma, Gauss's lemma, Nakayama's lemma, Poincaré's lemma, Riesz's lemma, Schwarz's lemma, Itō's lemma and Zorn's lemma.

Métal Hurlant ( literal translation: " Screaming Metal ") is a French comics anthology of science fiction and horror comics stories, created in December 1974 by comics artists Jean Giraud ( better known as Mœbius ) and Philippe Druillet together with journalist-writer Jean-Pierre Dionnet and financial director Bernard Farkas.

Farkas was known to have a kind, cheery personality, and was very much a perfectionist.