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Gyárfás Kurkó
Gyárfás is a Hungarian surname. Some known people bearing this name are: * András Gyárfás, Hungarian mathematician * Jenő Gyárfás, Hungarian painter See also * ''Gyárfás-patak'', the Hungarian name for the Ghiorfaş Creek, a tributary of the Mureș (river), Mureș river in Romania * Ileana Gyarfaş, Romanian gymnast {{Surname ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
András Gyárfás
András Gyárfás (born 1945) is a Hungarian mathematician who specializes in the study of graph theory. He is famous for two conjectures: * Together with Paul Erdős he conjectured what is now called the Erdős–Gyárfás conjecture which states that any graph with minimum degree 3 contains a cycle whose length is a power of two. * He and David Sumner independently formulated the Gyárfás–Sumner conjecture according to which, for every tree ''T'', the ''T''-free graphs are χ-bounded In graph theory, a \chi-bounded family \mathcal of graphs is one for which there is some function f such that, for every integer t the graphs in \mathcal with t=\omega(G) ( clique number) can be colored with at most f(t) colors. The function f(t) .... Gyárfás began working as a researcher for the Computer and Automation Research Institute of the Hungarian Academy of Sciences in 1968. He earned a candidate degree in 1980, and a doctorate (Dr. Math. Sci.) in 1992. He won the Géza Grü ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jenő Gyárfás
Jenő Gyárfás (6 April 1857, in Sepsiszentgyörgy – 3 December 1925, in Sepsiszentgyörgy, renamed Sfântu Gheorghe) was a Hungarian portrait painter, graphic artist and writer. Biography From 1873 to 1877, he studied at the newly created Hungarian Royal Drawing School in Budapest, under the history painter Bertalan Székely. He continued his studies at the Academy of Fine Arts, Munich with Alexander von Wagner, Gabriel von Max and Wilhelm von Diez.Life and works @ the Képzőművészet Magyarországon Galériá He soon decided that he would like to specialize in paintings of figures and portraits, beginning with his fellow student, . His paintings of Vienna, Budapes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mureș (river)
The Mureș () or Maros (; German: ''Mieresch'', ) is a river in Eastern Europe. Its drainage basin covers an area of .Analysis of the Tisza River Basin 2007 IPCDR It originates in the Hășmașu Mare Range in the Eastern Carpathian Mountains, , rising close to the headwa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |