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Topic: Solomon Lefschetz


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  Lefschetz biography
Solomon Lefschetz was a Russian born, Jewish mathematician who was the main source of the algebraic aspects of
Lefschetz received his Ph.D. in mathematics in 1911 with a thesis on algebraic geometry entitled On the existence of loci with given singularities.
Lefschetz worked on results which provided a deep generalisation of Emile Picard's theorems in function theory to several complex variables.
www-groups.dcs.st-and.ac.uk /~history/Biographies/Lefschetz.html   (2111 words)

  
  Solomon Lefschetz - Search Results - MSN Encarta
Lefschetz, Solomon (1884-1972), Russian American engineer and mathematician, a pioneer in developing the algebraic techniques of topology, a word...
Solomon, king of ancient Israel (reigned 961-922 bc), second son of David, king of Judah and Israel, and Bathsheba (see 2 Samuel 12:24).
Solomon Lefschetz (3 September 1884 5 October 1972) was an American mathematician who did fundamental work on algebraic topology, its applications to algebraic geometry, and the theory of non...
encarta.msn.com /Solomon_Lefschetz.html   (203 words)

  
  NationMaster - Encyclopedia: Solomon Lefschetz
Solomon Lefschetz (3 September 1884-5 October 1972) was a U.S. mathematician who did fundamental work on algebraic topology, its applications to algebraic geometry, and the theory of non-linear ordinary differential equations.
In mathematics, the Lefschetz fixed-point theorem counts the number of fixed points of a mapping from a topological space X to itself (subject to some mild conditions on X), by means of traces of the induced mappings on the homology groups of X. The counting is subject to some...
In mathematics, the Lefschetz hyperplane theorem states that a hyperplane section W of a non-singular complex algebraic variety V, in complex projective space, inherits most of its algebraic topology from V. This allows certain geometrical questions to be investigated by induction on dimension.
www.nationmaster.com /encyclopedia/Solomon-Lefschetz   (1510 words)

  
 SOLOMON LEFSCHETZ
Solomon Lefschetz (1884-1972) did pioneering work in algebraic geometry, algebraic topology, and differential equations, and exerted tremendous influence over American mathematics as a professor at Princeton University and the editor of the journal Annals of Mathematics.
Lefschetz accepted a position at the University of Nebraska, then moved to the University of Kansas.
One of Lefschetz's most widely used results, the Lefschetz fixed-point theorem, asserts that a map f from a "nice" compact space to itself has a fixed point (a point x such that f(x)=x) when a certain numerical invariant (the "Lefschetz number") of f is nonzero.
www.usna.edu /Users/math/meh/lefschetz.html   (601 words)

  
 SOLOMON LEFSCHETZ   (Site not responding. Last check: )
Lefschetz became Henry Fine research professor in 1932 and retained that post until his retirement from Princeton in 1953.
One of Lefschetz's most widely used results, the Lefschetz fixed-point theorem, asserts that a map f from a "nice" compact space to itself has a fixed point (a point x such that f(x)=x) when a certain numerical invariant (the "Lefschetz number") of f is nonzero.
Lefschetz was famous for his intuitive style of reasoning and strong opinions.
www.nadn.navy.mil /Users/math/meh/lefschetz.html   (601 words)

  
 LEFSCHETZ, Solomon   (Site not responding. Last check: )
He was born in Moscow and educated in Paris and at Clark University in Worcester, Mass.
Lefschetz was trained in Paris and began working in the U.S. as an engineer.
Japan's first land defeat in World War II occurred at Guadalcanal, one of the Solomon Islands located east of New Guinea.
www.history.com /encyclopedia.do?articleId=214548   (424 words)

  
 Solomon Lefschetz, Undaunted Genius
Lefschetz joined the faculty of the University of Kansas in 1913, the year he became a U.S. citizen and married Alice Berg Hayes, who as a special student at Clark received a master's degree in mathematics in 1911.
Lefschetz's early research in algebraic geometry with innovative use of topological methods earned him the 1919 Bordin Prize of the French Academy of Science and the Bocher Prize of the American Mathematical Society in 1924.
Lefschetz's distinguished career led to his presidency of the American Mathematical Society and membership in the Royal Society of London and the National Academy of Sciences.
aleph0.clarku.edu /~djoyce/mathhist/lefschetz_kna.html   (518 words)

  
 Solomon Lefschetz Summary
Lefschetz turned to the study of mathematics, and, as a fellow of Clark University, he earned a doctorate in mathematics in 1911.
Solomon Lefschetz (3 September 1884 5 October 1972) was a U.S. mathematician who did fundamental work on algebraic topology, its applications to algebraic geometry, and the theory of non-linear ordinary differential equations.
The Lefschetz fixed point theorem, now a basic result of topology, he developed in papers from 1923 to 1927, initially for manifolds.
www.bookrags.com /Solomon_Lefschetz   (555 words)

  
 About LCDS (Lefschetz Center @ Brown University)
The Lefschetz Center for Dynamical Systems is one of the leading groups in dynamical systems and control theory.
The center was named in honor of Solomon Lefschetz, one of the outstanding mathematicians of this century.
He was a very innovative and influential contributor to the theory of dynamical systems, the director of the mathematics group at RIAS before it moved to Brown and a continual source of support and inspiration.
www.dam.brown.edu /lcds/about.php   (239 words)

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