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Robert Ellis (mathematician)
Robert Mortimer Ellis (1926–2013) was an American mathematician, specializing in topological dynamics. Ellis grew up in Philadelphia, served briefly in the U.S. Army, and then studied at the University of Pennsylvania, where he received his Ph.D. in 1953. He was a postdoc at the University of Chicago from 1953 to 1955. He was at Pennsylvania State University from 1955 to 1957 an assistant professor and from 1957 to 1963 an associate professor and at Wesleyan University from 1963 to 1967 a full professor. At the University of Minnesota he was a full professor from 1967 to 1995, when he retired as professor emeritus. He developed an algebraic approach to topological dynamics, leading to a strengthening with an alternate proof of the Furstenberg structure theorem. He was the author or coauthor of about 40 research publications. In the year of his retirement, a conference was held in his honor at the University of Minnesota on April 5 and 6 1995; the conference proceedings were p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cleveland, Ohio
Cleveland ( ), officially the City of Cleveland, is a city in the U.S. state of Ohio and the county seat of Cuyahoga County. Located in the northeastern part of the state, it is situated along the southern shore of Lake Erie, across the U.S. maritime border with Canada, northeast of Cincinnati, northeast of Columbus, and approximately west of Pennsylvania. The largest city on Lake Erie and one of the major cities of the Great Lakes region, Cleveland ranks as the 54th-largest city in the U.S. with a 2020 population of 372,624. The city anchors both the Greater Cleveland metropolitan statistical area (MSA) and the larger Cleveland–Akron–Canton combined statistical area (CSA). The CSA is the most populous in Ohio and the 17th largest in the country, with a population of 3.63 million in 2020, while the MSA ranks as 34th largest at 2.09 million. Cleveland was founded in 1796 near the mouth of the Cuyahoga River by General Moses Cleaveland, after whom the city was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beloit College
Beloit College is a private liberal arts college in Beloit, Wisconsin. Founded in 1846, when Wisconsin was still a territory, it is the state's oldest continuously operated college. It is a member of the Associated Colleges of the Midwest and has an enrollment of roughly 1,400 undergraduate students. History Beloit College was founded by the group Friends for Education, which was started by seven pioneers from New England who, soon after their arrival in the Wisconsin Territory, agreed that a college needed to be established. The group raised funds for a college in their town and convinced the territorial legislature to enact the charter for Beloit College on February 2, 1846. The first building (then called Middle College) was built in 1847, and remains in operation. Classes began in the fall of 1847, with the first degrees awarded in 1851. Beloit's first president was a Yale University graduate, Aaron Lucius Chapin, who served from 1849 to 1886. The college became coeducatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania State University Faculty
Pennsylvania (; (Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, Maryland to its south, West Virginia to its southwest, Ohio to its west, Lake Erie and the Canadian province of Ontario to its northwest, New York to its north, and the Delaware River and New Jersey to its east. Pennsylvania is the fifth-most populous state in the nation with over 13 million residents as of 2020. It is the 33rd-largest state by area and ranks ninth among all states in population density. The southeastern Delaware Valley metropolitan area comprises and surrounds Philadelphia, the state's largest and nation's sixth most populous city. Another 2.37 million reside in Greater Pittsburgh in the southwest, centered around Pittsburgh, the state's second-largest and Western Pennsylvania's largest city. The state's subsequent f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Pennsylvania School Of Arts And Sciences Alumni
A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. Universities typically offer both undergraduate and postgraduate programs. In the United States, the designation is reserved for colleges that have a graduate school. The word ''university'' is derived from the Latin ''universitas magistrorum et scholarium'', which roughly means "community of teachers and scholars". The first universities were created in Europe by Catholic Church monks. The University of Bologna (''Università di Bologna''), founded in 1088, is the first university in the sense of: *Being a high degree-awarding institute. *Having independence from the ecclesiastic schools, although conducted by both clergy and non-clergy. *Using the word ''universitas'' (which was coined at its foundation). *Issuing secular and non-secular degrees: grammar, rhetoric, logic, theology, canon law, notarial law.Hunt Janin: "The university i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
21st-century American Mathematicians
The 1st century was the century spanning AD 1 ( I) through AD 100 ( C) according to the Julian calendar. It is often written as the or to distinguish it from the 1st century BC (or BCE) which preceded it. The 1st century is considered part of the Classical era, epoch, or historical period. The 1st century also saw the appearance of Christianity. During this period, Europe, North Africa and the Near East fell under increasing domination by the Roman Empire, which continued expanding, most notably conquering Britain under the emperor Claudius (AD 43). The reforms introduced by Augustus during his long reign stabilized the empire after the turmoil of the previous century's civil wars. Later in the century the Julio-Claudian dynasty, which had been founded by Augustus, came to an end with the suicide of Nero in AD 68. There followed the famous Year of Four Emperors, a brief period of civil war and instability, which was finally brought to an end by Vespasian, ninth Roman emper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2013 Deaths
This is a list of deaths of notable people, organised by year. New deaths articles are added to their respective month (e.g., Deaths in ) and then linked here. 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 See also * Lists of deaths by day * Deaths by year {{DEFAULTSORT:deaths by year ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1926 Births
Events January * January 3 – Theodoros Pangalos (general), Theodoros Pangalos declares himself dictator in Greece. * January 8 **Abdul-Aziz ibn Saud is crowned King of Kingdom of Hejaz, Hejaz. ** Bảo Đại, Crown Prince Nguyễn Phúc Vĩnh Thuy ascends the throne, the last monarch of Vietnam. * January 12 – Freeman Gosden and Charles Correll premiere their radio program ''Sam 'n' Henry'', in which the two white performers portray two black characters from Harlem looking to strike it rich in the big city (it is a precursor to Gosden and Correll's more popular later program, ''Amos 'n' Andy''). * January 16 – A BBC comic radio play broadcast by Ronald Knox, about a workers' revolution, causes a panic in London. * January 21 – The Belgian Parliament accepts the Locarno Treaties. * January 26 – Scottish inventor John Logie Baird demonstrates a mechanical television system at his London laboratory for members of the Royal Institution and a report ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Furstenberg Boundary
In potential theory, a discipline within applied mathematics, the Furstenberg boundary is a notion of boundary associated with a group. It is named for Harry Furstenberg, who introduced it in a series of papers beginning in 1963 (in the case of semisimple Lie groups). The Furstenberg boundary, roughly speaking, is a universal moduli space for the Poisson integral, expressing a harmonic function on a group in terms of its boundary values. Motivation A model for the Furstenberg boundary is the hyperbolic disc D=\. The classical Poisson formula for a bounded harmonic function on the disc has the form :f(z) = \frac\int_0^ \hat(e^) P(z,e^)\, d\theta where ''P'' is the Poisson kernel. Any function ''f'' on the disc determines a function on the group of Möbius transformations of the disc by setting . Then the Poisson formula has the form : F(g) = \int_\hat(gz) \, dm(z) where ''m'' is the Haar measure on the boundary. This function is then harmonic in the sense that it satisfies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walter Gottschalk
Walter Helbig Gottschalk (November 3, 1918 – February 15, 2004) was an American mathematician, one of the founders of topological dynamics. Biography Gottschalk was born in Lynchburg, Virginia, on November 3, 1918, and moved to Salem, Virginia as a child.About the author Gottschalk's Gestalts, retrieved 2012-11-21. Salem Educational Foundation and Alumni Association Hall of Fame, retrieved 2012-11-21. His father, Carl Gottschalk, was a German immigrant who worked as a machinist and later owned several small businesses in Salem; his younger brother, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Minnesota
The University of Minnesota, formally the University of Minnesota, Twin Cities, (UMN Twin Cities, the U of M, or Minnesota) is a public land-grant research university in the Twin Cities of Minneapolis and Saint Paul, Minnesota, United States. The Twin Cities campus comprises locations in Minneapolis and Falcon Heights, a suburb of St. Paul, approximately apart. The Twin Cities campus is the oldest and largest in the University of Minnesota system and has the ninth-largest main campus student body in the United States, with 52,376 students at the start of the 2021–22 academic year. It is the flagship institution of the University of Minnesota System, and is organized into 19 colleges, schools, and other major academic units. The Minnesota Territorial Legislature drafted a charter for the U of M as a territorial university in 1851, seven years before Minnesota became a state. Today, the university is classified among "R1: Doctoral Universities – Very high research acti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wesleyan University
Wesleyan University ( ) is a private liberal arts university in Middletown, Connecticut. Founded in 1831 as a men's college under the auspices of the Methodist Episcopal Church and with the support of prominent residents of Middletown, the college was the first institution of higher education to be named after John Wesley, the founder of Methodism. It is now a secular institution. The college accepted female applicants from 1872 to 1909, but did not become fully co-educational until 1970. Before full co-education, Wesleyan alumni and other supporters of women's education established Connecticut College for women in 1912. Wesleyan, along with Amherst and Williams colleges, is part of "The Little Three", also traditionally referred to as the Little Ivies. Its teams compete athletically as a member of the NESCAC. Wesleyan University has distinguished alumni in the arts and sciences, literature, politics and government, business, journalism, and academia. Its alumni include 13 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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