Timothy G. Feeman -- Publications List

The publications listed on this page are available as indicated.  To open an article available electronically, simply click on the link. This will open a dialogue box asking you to open or save the file. Diagrams and figures may be missing from some files (before I figured out how to import Maple graphics directly into LaTeX files, for instance). For a proper reprint, contact me directly and I'll gladly send one along.

Book
Portraits of the Earth: A Mathematician Looks at Maps

Operator Theory

• Best approximation and quasitriangular algebras, Transactions of the American Mathematical Society, Volume 288, Number 1, March 1985, pp. 179-187. reprint only
• M-ideals and quasi-triangular algebras, Illinois Journal of Mathematics, Volume 31, Number 1, Spring 1987, pp. 89-98. reprint only
• A note on M-summands in dual spaces, Canadian Mathematical Bulletin, Volume 30(4), 1987, pp. 393-398. reprint only
• Extreme points in quotients of operator algebras, with A.L.Shields and K.R.Davidson, Operator Theory: Advances and Applications, Volume 32, 1988, Birkhäuser Verlag Basel, pp. 67-91. plain TeX file, macros, and references
• Nest algebras and the Dunford-Pettis property, Canadian Mathematical Bulletin, Volume 34(2), 1991, pp. 208-214. plain TeX file
• The Bourgain algebra of a nest algebra, Proceedings of the Edinburgh Mathematical Society, Volume 40, 1997, pp. 151--166. pdf file.
• Higher order Bourgain algebras of a nest algebra, Proceedings of the American Mathematical Society, Volume 126, 1998, pp. 1391--1396. pdf file.

Cartography

• The use of scale factors in map analysis: an elementary approach, with E.F.Bosowski, Cartographica, Volume 34, Number 4, Winter 1997, pp. 35--44. pdf file
• Equal area world maps: A case study, SIAM Review, Volume 42, Number 1, 2000, pp. 109--114. pdf file.
• Conformality, the exponential function, and world map projections, College Math Journal, Volume 32, Number 5, November 2001, pp. 334--342. pdf file. (**2002 MAA Polya Prize for expository writing**)
• Mathematical Foundations of GIS, Encyclopedia of GIS, 2008, Springer US, ISBN: 978-0-387-30858-6 (Print) 978-0-387-35973-1 (Online); pdf file (15MB) or visit SpringerLink: http://www.springerlink.com/content/h01539/. 

Other articles

• Lengths of successive chords of the odd extension of a power function, with Osvaldo Marrero, Mathematics and Computer Education, Volume 34, No.1, 2000, pp. 19--23. pdf file.
• Sequences of chords and of parabolic segments enclosing proportional areas, with Osvaldo Marrero, College Math Journal, Volume 31, No. 5, November 2000, pp. 379--382. pdf file.
• Affine transformations, polynomials, and proportionality, with Osvaldo Marrero, American Math Monthly, Volume 108, December 2001, pp. 972--975. pdf file and correction.
• The right-hand derivative of an integral, with Osvaldo Marrero, American Math Monthly, Volume 109, June-July 2002, pp. 565--568. pdf file.
• Very curious numbers indeed!, with Osvaldo Marrero, The Mathematical Gazette, Volume 88, Number 511, March 2004, pp. 98--101 (Note 88.08). pdf file
• Intersections of tangent lines of exponential functions, with Osvaldo Marrero, College Math Journal, Volume 36, No. 3, May 2005, pp. 205--208. pdf file
• A geometric characterization of the power functions, with Osvaldo Marrero, The Mathematical Gazette, Volume 91, Number 521, July 2007, pp. 275--279 . pdf file.
• On the area of a parabolic sector, International J. of Mathematical Education in Science and Technology (IJMEST), to appear (2009). preprint (pdf)

For further information or reprints, contact
Dr. Timothy G. Feeman
Department of Mathematical Sciences, Villanova University,
800 Lancaster Avenue, Villanova, PA 19085-1699 USA
Phone: (610)519-4693
Fax: (610)519-6928
e-mail:  click here for link

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