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.

Books

The Mathematics of Medical Imaging: A Beginner's Guide
Springer, 2010; Series: Springer Undergraduate Texts in Mathematics and Technology; ISBN: 978-0-387-92711-4; Available: January 2010. For more information or to order, click here.

Portraits of the Earth: A Mathematician Looks at Maps
American Mathematical Society, 2002 ; Series: Mathematical World, Volume 18; ISBN: 0-8218-3255-7; to order click here 

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, Vol. 34, No.1, 2000, 19--23. pdf file.
• Sequences of chords and of parabolic segments enclosing proportional areas, with Osvaldo Marrero, College Math Journal, Vol. 31, No. 5, November 2000, 379--382. pdf file.
• Affine transformations, polynomials, and proportionality, with Osvaldo Marrero, American Math Monthly, Vol. 108, December 2001, 972--975. pdf file; correction.
• The right-hand derivative of an integral, with Osvaldo Marrero, American Math Monthly, Vol. 109, June-July 2002, 565--568. pdf file.
• Very curious numbers indeed!, with Osvaldo Marrero, The Mathematical Gazette, Vol. 88, No. 511, March 2004, 98--101 (Note 88.08). pdf file
• Intersections of tangent lines of exponential functions, with Osvaldo Marrero, College Math Journal, Vol. 36, No. 3, May 2005, 205--208. pdf file
• A geometric characterization of the power functions, with Osvaldo Marrero, The Mathematical Gazette, Vol. 91, No. 521, July 2007, 275--279 . pdf file.
• On the area of a parabolic sector, International J. of Math Education in Science and Technology (IJMEST), Vol. 40, No. 8, September 2009, 1118--1121. pdf file.
• Ratios of volumes related to the odd extension of a power function, with Osvaldo Marrero, The Mathematical Gazette, to appear. preprint
• On a family of circles, PRIMUS, to appear. preprint

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