Professor Review Website

Mathematics Department

Biography

Professor Johnson specializes in abstract algebra and number theory with a particular focus on cryptographic applications. He joined Columbia after a distinguished career at Princeton University, where he received the Outstanding Teaching Award for three consecutive years. His textbook 'Modern Approaches to Number Theory' has been adopted by universities worldwide and translated into seven languages. Professor Johnson serves as an editor for the Journal of Mathematical Sciences and regularly organizes the International Symposium on Algebraic Structures. His teaching philosophy emphasizes building strong foundational knowledge through challenging problem sets that develop critical thinking skills.

Courses Taught

• MATH1201
• MATH2261

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