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Summary

Alfred Gray was an American mathematician whose main research interests were in differential geometry
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, as well as complex variables and differential equations.
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He is also known for his contributions to modern differential geometry of curves and surfaces with Mathematica
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, and his legacy was celebrated in an International Congress on Differential Geometry in 2000.
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According to

Summary
Modern Differential Geometry of Curves and Surfaces with Mathematica is a comprehensive book that provides an outstanding, comprehensive presentation of both theoretical and practical aspects of differential geometry. It includes 300 miniprograms for computing and plotting various geometric objects, and includes examples of important theorems with many examples. The book is written in a clear and concise manner, and is a great resource for students of all levels.

Modern Differential Geometry of Curves and Surfaces with Mathematica ...
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Summary
Alfred Gray's work covered a great part of differential geometry. In September 2000, a remarkable International Congress on Differential Geometry was held in his memory in Bilbao, Spain. Mathematicians from all over the world, representing 24 countries, attended the event.

Global Differential Geometry: The Mathematical Legacy of Alfred Gray
ams.org

Global Differential Geometry : The Mathematical Legacy of Alfred Gray About this Title Marisa Fernández and Joseph A. Wolf, Editors Publication: Contemporary Mathematics Publication Year 2001 : Volume 288 ISBNs: 978-0-8218-2750-5…

AMS eBooks: Contemporary Mathematics
ams.org

Alfred Gray presented Euclidean differential geometry with many applications ofMathematica. I am very much obliged to Alfred Gray who already in 1988 introduced me to Stephen Wolfram’s program Mathematica. Many…

Euclidean Curve Theory - Wolfram
wolfram.com