Per Enflo, born in Stockholm, Sweden in 1944, is a university professor in the Department of Mathematical Sciences at Kent State University, Ohio, USA. ('stɔkhɔlm is Sweden 's Capital and its largest City. It is the site of the national Swedish government, the parliament, and the "Sverige" redirects here For other uses see Sweden (disambiguation and Sverige (disambiguation. Kent State University (also known as Kent, Kent State, or KSU) is one of America’s largest university systems the third largest university Enflo's mathematical contributions fall mainly within the area of functional analysis, where he solved three fundamental problems — the basis problem, the approximation problem and a version of the invariant subspace problem for Banach spaces[1]— which had been open for more than 40 years. In Mathematics, a Banach space is said to have the approximation property ( AP in short if every Compact operator is a limit of Finite rank operators In the field of Mathematics known as Functional analysis, one of the most prominent open problems is the invariant subspace problem, sometimes optimistically known In Mathematics, Banach spaces (ˈbanax named after Polish Mathematician Stefan Banach) are one of the central objects of study in Functional analysis Per Enflo is also a pianist.
He has earlier held positions at the University of California, Berkeley, Stanford University, Ecole Polytechnique, (Paris) and The Royal Institute of Technology, Stockholm. The University of California Berkeley (also referred to as Cal, Berkeley and UC Berkeley) is a major research university located in Berkeley Leland Stanford Junior University, commonly known as Stanford University or simply Stanford, is a private Research university located in For other Écoles Polytechniques see École Polytechnique de Montréal and École Polytechnique Fédérale de Lausanne. Paris (ˈpærɨs in English; in French) is the Capital of France and the country's largest city ('stɔkhɔlm is Sweden 's Capital and its largest City. It is the site of the national Swedish government, the parliament, and the
References
- "Recipients of 2005 Distinguished Scholar Award at Kent State University Announced", eInside, 2005-4-11. Retrieved on February 4, 2007. Events 211 - Roman Emperor Septimius Severus dies leaving the Roman Empire in the hands of his two quarrelsome sons Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century.
- ^ Per Enflo: A counterexample to the approximation problem in Banach spaces. Acta Mathematica vol. Acta Mathematica is a journal publishing original research papers in all fields of Mathematics. 130, no. 1, Juli 1973
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