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- Cornelius_Lanczos abstract "Cornelius (Cornel) Lanczos (Hungarian: Lánczos Kornél, pronounced [ˈlaːntsoʃ]) (until 1906: Löwy (Lőwy) Kornél) was a Jewish Hungarian mathematician and physicist, who was born on February 2, 1893, and died on June 25, 1974.He was born in Székesfehérvár to Karl Löwy (Lőwy Károly) and Adél Hahn.Lanczos' Ph.D. thesis (1921) was on relativity theory. In 1924 he discovered an exact solution of the Einstein field equation, which represents a cylindrically symmetric rigidly rotating configuration of dust particles. This was later rediscovered by Willem Jacob van Stockum and is known today as the van Stockum dust. It is one of the simplest known exact solutions in general relativity, and is regarded as an important example, in part because it exhibits closed timelike curves.Lanczos served as assistant to Albert Einstein during the period of 1928–29.He did pioneering work along with G.C. Danielson on what is now called the fast Fourier transform (FFT, 1940), but the significance of his discovery was not appreciated at the time, and today the FFT is credited to Cooley and Tukey (1965). (As a matter of fact, similar claims can be made for several other mathematicians, including Carl Friedrich Gauss.)Working in Washington DC at the U.S. National Bureau of Standards after 1949, Lanczos developed a number of techniques for mathematical calculations using digital computers, including: the Lanczos algorithm for finding eigenvalues of large symmetric matrices. the Lanczos approximation for the gamma function. the conjugate gradient method for solving systems of linear equationsIn 1962, Lanczos showed that the Weyl tensor, which plays a fundamental role in general relativity, can be obtained from a tensor potential which is now called the Lanczos potential.Lanczos resampling is based on a windowed sinc function as a practical upsampling filter approximating the ideal sinc function. Lanczos resampling is widely used in video up-sampling for digital zoom applications.Lanczos was an outstanding physics teacher. Books such as The Variational Principles of Mechanics (1949) show his explanatory ability and enthusiasm for the subject.During the McCarthy era, Lanczos came under suspicion for possible Communist links. In 1952, he left the U.S. and moved to the School of Theoretical Physics at the Dublin Institute for Advanced Studies in Ireland, where he succeeded Schrödinger and stayed until 1968. When at D.I.A.S. he wrote the classic book, "Applied Analysis" (1956).According to a short speech delivered Oct 1, 2010 during Lanczos' induction to the NIST Portrait Gallery of Distinguished Staff, his daughter-in-law, Alice Lanczos, described his return to Hungary in 1939 from his then-position at Purdue University, when he attempted to convince his family to return to the US with him due to the anti-Jewish Nazi threat. His wife was too ill to travel, and died several weeks later from tuberculosis. He was only able to extricate his 5-year-old son and return to the US just before the war began. When the Nazis purged Hungary of Jews in 1944, only his sister and a nephew survived. That son married, moved to Seattle and raised two sons. When hisson Elmar looked at his own firstborn son he said "For me, it proves that Hitler did not win."".
- Cornelius_Lanczos academicAdvisor Erwin_Madelung.
- Cornelius_Lanczos academicAdvisor Franz_Himstedt.
- Cornelius_Lanczos academicAdvisor Lipót_Fejér.
- Cornelius_Lanczos academicAdvisor Loránd_Eötvös.
- Cornelius_Lanczos almaMater University_of_Szeged.
- Cornelius_Lanczos award Chauvenet_Prize.
- Cornelius_Lanczos birthDate "1893-02-02".
- Cornelius_Lanczos birthPlace Székesfehérvár.
- Cornelius_Lanczos birthYear "1893".
- Cornelius_Lanczos deathDate "1974-06-25".
- Cornelius_Lanczos deathPlace Budapest.
- Cornelius_Lanczos deathYear "1974".
- Cornelius_Lanczos doctoralAdvisor Rudolf_Ortvay.
- Cornelius_Lanczos field Mathematics.
- Cornelius_Lanczos field Theoretical_physics.
- Cornelius_Lanczos nationality Hungary.
- Cornelius_Lanczos wikiPageExternalLink lanczos.
- Cornelius_Lanczos wikiPageExternalLink index.htm.
- Cornelius_Lanczos wikiPageExternalLink lanczos.
- Cornelius_Lanczos wikiPageID "1657748".
- Cornelius_Lanczos wikiPageLength "10024".
- Cornelius_Lanczos wikiPageOutDegree "69".
- Cornelius_Lanczos wikiPageRevisionID "682361739".
- Cornelius_Lanczos wikiPageWikiLink Academic_Press.
- Cornelius_Lanczos wikiPageWikiLink Albert_Einstein.
- Cornelius_Lanczos wikiPageWikiLink American_Mathematical_Society.
- Cornelius_Lanczos wikiPageWikiLink Brendan_Scaife.
- Cornelius_Lanczos wikiPageWikiLink Budapest.
- Cornelius_Lanczos wikiPageWikiLink Carl_Friedrich_Gauss.
- Cornelius_Lanczos wikiPageWikiLink Category:1893_births.
- Cornelius_Lanczos wikiPageWikiLink Category:1974_deaths.
- Cornelius_Lanczos wikiPageWikiLink Category:20th-century_mathematicians.
- Cornelius_Lanczos wikiPageWikiLink Category:American_expatriates_in_Ireland.
- Cornelius_Lanczos wikiPageWikiLink Category:American_people_of_Hungarian-Jewish_descent.
- Cornelius_Lanczos wikiPageWikiLink Category:Hungarian_Jews.
- Cornelius_Lanczos wikiPageWikiLink Category:Hungarian_emigrants_to_the_United_States.
- Cornelius_Lanczos wikiPageWikiLink Category:Hungarian_mathematicians.
- Cornelius_Lanczos wikiPageWikiLink Category:Hungarian_physicists.
- Cornelius_Lanczos wikiPageWikiLink Category:Irish_mathematicians.
- Cornelius_Lanczos wikiPageWikiLink Category:Jewish_American_scientists.
- Cornelius_Lanczos wikiPageWikiLink Category:Jewish_physicists.
- Cornelius_Lanczos wikiPageWikiLink Category:Numerical_analysts.
- Cornelius_Lanczos wikiPageWikiLink Category:People_from_Székesfehérvár.
- Cornelius_Lanczos wikiPageWikiLink Category:Relativists.
- Cornelius_Lanczos wikiPageWikiLink Chauvenet_Prize.
- Cornelius_Lanczos wikiPageWikiLink Closed_timelike_curve.
- Cornelius_Lanczos wikiPageWikiLink Conjugate_gradient_method.
- Cornelius_Lanczos wikiPageWikiLink Cooley–Tukey_FFT_algorithm.
- Cornelius_Lanczos wikiPageWikiLink Doctor_of_Philosophy.
- Cornelius_Lanczos wikiPageWikiLink Dublin_Institute_for_Advanced_Studies.
- Cornelius_Lanczos wikiPageWikiLink Eigenvalue,_eigenvector,_and_eigenspace.
- Cornelius_Lanczos wikiPageWikiLink Eigenvalues_and_eigenvectors.
- Cornelius_Lanczos wikiPageWikiLink Einstein_field_equation.
- Cornelius_Lanczos wikiPageWikiLink Einstein_field_equations.
- Cornelius_Lanczos wikiPageWikiLink Erwin_Madelung.
- Cornelius_Lanczos wikiPageWikiLink Erwin_Schrödinger.
- Cornelius_Lanczos wikiPageWikiLink Exact_solutions_in_general_relativity.
- Cornelius_Lanczos wikiPageWikiLink Fast_Fourier_transform.
- Cornelius_Lanczos wikiPageWikiLink Fluid_solution.
- Cornelius_Lanczos wikiPageWikiLink Franz_Himstedt.
- Cornelius_Lanczos wikiPageWikiLink G.C._Danielson.
- Cornelius_Lanczos wikiPageWikiLink G._C._Danielson.
- Cornelius_Lanczos wikiPageWikiLink Hungary.
- Cornelius_Lanczos wikiPageWikiLink Jews.
- Cornelius_Lanczos wikiPageWikiLink Judaism.
- Cornelius_Lanczos wikiPageWikiLink Lanczos_algorithm.
- Cornelius_Lanczos wikiPageWikiLink Lanczos_approximation.
- Cornelius_Lanczos wikiPageWikiLink Lanczos_resampling.
- Cornelius_Lanczos wikiPageWikiLink Lanczos_tensor.
- Cornelius_Lanczos wikiPageWikiLink Leopold_Fejér.
- Cornelius_Lanczos wikiPageWikiLink Lipót_Fejér.
- Cornelius_Lanczos wikiPageWikiLink Loránd_Eötvös.
- Cornelius_Lanczos wikiPageWikiLink Mathematician.
- Cornelius_Lanczos wikiPageWikiLink Mathematics.
- Cornelius_Lanczos wikiPageWikiLink McCarthyism.
- Cornelius_Lanczos wikiPageWikiLink National_Institute_of_Standards_and_Technology.
- Cornelius_Lanczos wikiPageWikiLink Nicholas_Higham.
- Cornelius_Lanczos wikiPageWikiLink Ph.D..
- Cornelius_Lanczos wikiPageWikiLink Physicist.
- Cornelius_Lanczos wikiPageWikiLink Raleigh,_North_Carolina.
- Cornelius_Lanczos wikiPageWikiLink Relativity_theory.
- Cornelius_Lanczos wikiPageWikiLink Rudolf_Ortvay.
- Cornelius_Lanczos wikiPageWikiLink Schrödinger.
- Cornelius_Lanczos wikiPageWikiLink Selig_Brodetsky.
- Cornelius_Lanczos wikiPageWikiLink Sinc_function.
- Cornelius_Lanczos wikiPageWikiLink System_of_linear_equations.
- Cornelius_Lanczos wikiPageWikiLink Systems_of_linear_equations.
- Cornelius_Lanczos wikiPageWikiLink Székesfehérvár.
- Cornelius_Lanczos wikiPageWikiLink Tensor_potential.
- Cornelius_Lanczos wikiPageWikiLink Theoretical_physics.
- Cornelius_Lanczos wikiPageWikiLink Theory_of_relativity.
- Cornelius_Lanczos wikiPageWikiLink University_of_Szeged.
- Cornelius_Lanczos wikiPageWikiLink University_of_Toronto_Press.
- Cornelius_Lanczos wikiPageWikiLink Van_Stockum_dust.
- Cornelius_Lanczos wikiPageWikiLink Weyl_tensor.
- Cornelius_Lanczos wikiPageWikiLink Willem_Jacob_van_Stockum.
- Cornelius_Lanczos wikiPageWikiLinkText "C. Lanczos".
- Cornelius_Lanczos wikiPageWikiLinkText "Cornelius Lanczos".
- Cornelius_Lanczos wikiPageWikiLinkText "Lanczos".