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Eugene Lukacs
__NOTOC__ Eugene Lukacs ( Hungarian: ''Lukács Jenő'', 14 August 1906 – 21 December 1987) was a Hungarian-American statistician notable (Obituary) for his work in characterization of distributions, stability theory, and being the author of ''Characteristic Functions'', a classic textbook in the field. Born to a Jewish family in born in Szombathely, from six weeks after birth Lukacs lived in Vienna, Austria. There he received primary and secondary education and studied mathematics at University of Vienna. His professors included Hans Hahn, Eduard Helly, Walther Mayer, Leopold Vietoris and Wilhelm Wirtinger. In 1930 he earned his doctorate in geometry under the supervision of Walther Mayer, and a degree in actuarial science in 1931. Eugene met his future wife Elizabeth Weisz (Lisl) in 1927 at the University of Vienna, and they married in 1935. He taught secondary mathematics for two years and later accepted a position with an insurance company, where Eduard Helly and Z. W. Birnba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Szombathely
Szombathely (; german: Steinamanger, ; see also other alternative names) is the 10th largest city in Hungary. It is the administrative centre of Vas county in the west of the country, located near the border with Austria. Szombathely lies by the streams ''Perint'' and ''Gyöngyös'' (literally "pearly"), where the Alpokalja (Lower Alps) mountains meet the Little Hungarian Plain. The oldest city in Hungary, it is known as the birthplace of Saint Martin of Tours. Etymology The name ''Szombathely'' is from Hungarian ''szombat'', "Saturday" and ''hely'', "place", referring to its status as a market town, and the medieval markets held on Saturday every week. Once a year during August they hold a carnival to remember the history of "Savaria". The Latin name ''Savaria'' or ''Sabaria'' comes from ''Sibaris'', the Latin name of the river ''Gyöngyös'' (German ''Güns''). The root of the word is the Proto-Indo-European word ''*seu'', meaning "wet". The Austrian overflowing of the Gyö ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leopold Vietoris
Leopold Vietoris (; ; 4 June 1891 – 9 April 2002) was an Austrian mathematician, World War I veteran and supercentenarian. He was born in Radkersburg and died in Innsbruck. He was known for his contributions to topology—notably the Mayer–Vietoris sequence—and other fields of mathematics, his interest in history of mathematics, mathematical history and for being a keen alpinist. Biography Vietoris studied mathematics and geometry at the TU Wien, Vienna University of Technology. He was drafted in 1914 in World War I and was wounded in September that same year. On 4 November 1918, one week before the Armistice of Villa Giusti, he became an Italy, Italian prisoner of war. After returning to Austria, he attended the University of Vienna, where he earned his PhD in 1920, with a thesis written under the supervision of Gustav von Escherich and Wilhelm Wirtinger. In autumn 1928 he married his first wife Klara Riccabona, who later died while giving birth to their sixth daughter. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1987 Deaths
File:1987 Events Collage.png, From top left, clockwise: The MS Herald of Free Enterprise capsizes after leaving the Port of Zeebrugge in Belgium, killing 193; Northwest Airlines Flight 255 crashes after takeoff from Detroit Metropolitan Airport, killing everyone except a little girl; The King's Cross fire kills 31 people after a fire under an escalator Flashover, flashes-over; The MV Doña Paz sinks after colliding with an oil tanker, drowning almost 4,400 passengers and crew; Typhoon Nina (1987), Typhoon Nina strikes the Philippines; LOT Polish Airlines Flight 5055 crashes outside of Warsaw, taking the lives of all aboard; The USS Stark is USS Stark incident, struck by Iraq, Iraqi Exocet missiles in the Persian Gulf; President of the United States, U.S. President Ronald Reagan gives a famous Tear down this wall!, speech, demanding that Soviet Union, Soviet leader Mikhail Gorbachev tears down the Berlin Wall., 300x300px, thumb rect 0 0 200 200 Zeebrugge disaster rect 200 0 400 200 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1906 Births
Events January–February * January 12 – Persian Constitutional Revolution: A nationalistic coalition of merchants, religious leaders and intellectuals in Persia forces the shah Mozaffar ad-Din Shah Qajar to grant a constitution, and establish a national assembly, the Majlis. * January 16–April 7 – The Algeciras Conference convenes, to resolve the First Moroccan Crisis between France and Germany. * January 22 – The strikes a reef off Vancouver Island, Canada, killing over 100 (officially 136) in the ensuing disaster. * January 31 – The Ecuador–Colombia earthquake (8.8 on the Moment magnitude scale), and associated tsunami, cause at least 500 deaths. * February 7 – is launched, sparking a naval race between Britain and Germany. * February 11 ** Pope Pius X publishes the encyclical ''Vehementer Nos'', denouncing the 1905 French law on the Separation of the Churches and the State. ** Two British members of a poll tax collecting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lukacs Distinguished Professor
The Lukacs Distinguished Professor chair was established in 1989 by the Department of Mathematics and Statistics at Bowling Green State University in honor of Eugene Lukacs, (Obituary) who came to Bowling Green with his colleagues Radha Laha and Vijay Rohatgi in 1972 to establish the doctoral program in statistics. Eugene Lukacs was Bowling Green's first Distinguished University Professor. Each year an outstanding senior researcher in probability or statistics is invited to serve as the Eugene Lukacs Distinguished Visiting Professor during the academic year or a semester. The Lukacs Professors are invited based on their distinguished record of research in the application or theory of probability or statistics. The Lukacs professor typically collaborates with current faculty on research, participates in seminars and colloquia, and typically gives a graduate course or presents a series of related seminars. Lukacs Professors have organized Lukacs Symposia on a variety of topics in proba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lukacs's Proportion-sum Independence Theorem
In statistics, Lukacs's proportion-sum independence theorem is a result that is used when studying proportions, in particular the Dirichlet distribution. It is named after Eugene Lukacs. The theorem If ''Y''1 and ''Y''2 are non-degenerate, independent random variables, then the random variables : W=Y_1+Y_2\textP = \frac are independently distributed if and only if both ''Y''1 and ''Y''2 have gamma distribution In probability theory and statistics, the gamma distribution is a two-parameter family of continuous probability distributions. The exponential distribution, Erlang distribution, and chi-square distribution are special cases of the gamma distri ...s with the same scale parameter. Corollary Suppose ''Y'' ''i'', ''i'' = 1, ..., ''k'' be non-degenerate, independent, positive random variables. Then each of ''k'' − 1 random variables : P_i=\frac is independent of : W=\sum_^k Y_i if and only if all the ''Y'' ''i'' hav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Statistical Association
The American Statistical Association (ASA) is the main professional organization for statisticians and related professionals in the United States. It was founded in Boston, Massachusetts on November 27, 1839, and is the second oldest continuously operating professional society in the US (only the Massachusetts Medical Society, founded in 1781, is older). The ASA services statisticians, quantitative scientists, and users of statistics across many academic areas and applications. The association publishes a variety of journals and sponsors several international conferences every year. Mission The organization's mission is to promote good application of statistical science, specifically to: * support excellence in statistical practice, research, journals, and meetings * work for the improvement of statistical education at all levels * promote the proper application of statistics * anticipate and meet member needs * use the discipline of statistics to enhance human welfare * seek opp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Institute Of Mathematical Statistics
The Institute of Mathematical Statistics is an international professional and scholarly society devoted to the development, dissemination, and application of statistics and probability. The Institute currently has about 4,000 members in all parts of the world. Beginning in 2005, the institute started offering joint membership with the Bernoulli Society for Mathematical Statistics and Probability as well as with the International Statistical Institute. The Institute was founded in 1935 with Harry C. Carver and Henry L. Rietz as its two most important supporters. The institute publishes a variety of journals, and holds several international conference every year. Publications The Institute publishes five journals: *''Annals of Statistics'' *'' Annals of Applied Statistics'' *''Annals of Probability'' *''Annals of Applied Probability'' *'' Statistical Science'' In addition, it co-sponsors: * The ''Current Index to Statistics'' * ''Electronic Communications in Probability'' * ''Ele ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Characteristic Function (probability Theory)
In probability theory and statistics, the characteristic function of any real-valued random variable completely defines its probability distribution. If a random variable admits a probability density function, then the characteristic function is the Fourier transform of the probability density function. Thus it provides an alternative route to analytical results compared with working directly with probability density functions or cumulative distribution functions. There are particularly simple results for the characteristic functions of distributions defined by the weighted sums of random variables. In addition to univariate distributions, characteristic functions can be defined for vector- or matrix-valued random variables, and can also be extended to more generic cases. The characteristic function always exists when treated as a function of a real-valued argument, unlike the moment-generating function. There are relations between the behavior of the characteristic function of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radha Laha
Radha Govind Laha (1 October 1930 – 14 July 1999) was an Indian probabilist, statistician, and mathematician, known for his work in probability theory, characteristic functions, and characterisation of distributions.Laha, Lukacs, and Newman (1960)Laha (1957,1958a,1958b,1959,1991,1998)Laha and Lukacs (1960,1962,1977) Biography Early life He was born in Calcutta, India and he was a student of C. R. Rao at Calcutta University, where in 1957 he earned a doctorate in analytical probability theory from the Indian Statistical Institute. His dissertation was entitled ''Some Characterization Problems in Probability Theory and Mathematical Statistics''. Laha's primary and secondary education was completed in Calcutta. In 1949 he graduated first in rank with a bachelor's degree in statistics from Presidency College, Calcutta. He earned his master's degree in statistics in 1951, and doctoral degree in analytical probability theory from Calcutta University in 1957. Prizes and awards ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
