## Patrick J. Ryan

** Professor of Mathematical Sciences, Emeritus, McMaster University **

Algorithms Research Group,
Department of Computing & Software,

Geometry and Topology Research Group,
Department of Mathematics & Statistics

**Office** - Information Technology Building (ITB) 129
**Telephone** - 1-905-525-9140 ext. 23440
**email** - ryanpj@mcmaster.ca

**Degrees**
**1968** Brown University, Ph.D. (* Mathematics *)
**1964** University of Toronto, B.Sc. (* Mathematics and Physics *)

My primary research interests are in Geometry, in particular, the characterization and classification
of hypersurfaces in real and complex space forms. I have taught a wide range of Mathematics and Computer
Science courses over many years and am the author of an undergraduate textbook * Euclidean and non-Euclidean
Geometry, An Analytic Approach* published by Cambridge University Press.

Over the past several years, I have worked with Prof. Thomas Ivey
of the College of Charleston on applying the theory of Exterior Differential Systems to classification of hypersurfaces.
I have also done some work on string processing algorithms with my colleague
Prof. W.F. Smyth, with particular
emphasis on applications to computational geometry. I have just completed a book entitled "Geometry of Hypersurfaces" with Prof. Thomas Cecil (College of the Holy Cross). It appears in the Springer Monographs in Mathematics series.

In my role as Professor Emeritus, I teach a course occasionally -- most recently Computer Science 3DA3, Data Structures and Algorithms
and Mathematics 1B03, Linear Algebra I.

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Last revised:
Tuesday, 23-Feb-2016 10:59:06 EST
*