Pinkus, Allan,  1946- <br/><br/>
On L1-approximation / 
Allan M. Pinkus. 
 - Cambridge :  Cambridge University Press,  1989. 
 - 1 online resource (x, 239 pages) :  digital, PDF file(s). 
 - Cambridge tracts in mathematics ;  93 .
 - Cambridge tracts in mathematics ;  93. .
<br/><br/> Title from publisher's bibliographic system (viewed on 05 Oct 2015). 
<br/><br/> This monograph is concerned with the qualitative theory of best L1-approximation from finite-dimensional subspaces. It presents a survey of recent research that extends 'classical' results concerned with best uniform approximation to the L1 case. The work is organized in such a way as to be useful for self-study or as a text for advanced courses. It begins with a basic introduction to the concepts of approximation theory before addressing one- or two-sided best approximation from finite-dimensional subspaces and approaches to the computation of these. At the end of each chapter is a series of exercises; these give the reader an opportunity to test understanding and also contain some theoretical digressions and extensions of the text. 
<br/><br/><label>ISBN: </label>9780511526497 (ebook) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Approximation theory.<br/>Least absolute deviations (Statistics)
<br/><br/><label>LC Class. No.: </label>QA221  / .P55 1989 
<br/><br/><label>Dewey Class. No.: </label>511/.4