CAS Graduate Viewbook 2026

GRADUATE PROGRAMS PAGE 14 / COLLEGE OF ARTS AND SCIENCES / MATHEMATICS Program Description Mathematics is the most fundamental and unified of the sciences—the universal language we use to discover new knowledge and make sense of the world. At Lehigh, we train the mind to wield logic and reason to solve both deep theoretical questions and complex, real-world problems. When you join our department, you are entering a thriving, close-knit community of quantitative thinkers. Here, traditional disciplinary boundaries blur, and every student’s journey is supported by intense collaboration and mentorship. Choose Your Pathway • M.S. & Ph.D. in Mathematics • M.S. & Ph.D. in Applied Mathematics • M.S. in Statistics & Data Science Master of Science (M.S.): A rigorous, 30-credit program designed to advance your expertise for industry leadership or doctoral preparation. Doctor of Philosophy (Ph.D.): An immersive 5-7 year track featuring advanced seminars, comprehensive exams, and the defense of an original, field-advancing dissertation. Mathematics The Universal Language of Discovery

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