Tatsunari Watanabe

Title
Assistant Professor of Mathematics
Email
Department
Mathematics Department
College
College of Arts & Sciences

Office Hours

MWF: 10AM - 10:50AM, 12PM - 12:50PM, TTh: 11AM - 12PM, 2PM - 3PM

Areas of Expertise

Algebraic Geometry, Topology, Number Theory

Tatsunari Watanabe

Tatsunari Watanabe is an Assistant Professor of Mathematics at Embry-Riddle Aeronautical University in Prescott. He aids students in visualizing and comprehending mathematical concepts, equipping them to utilize these ideas beyond the scope of mathematics. Before joining the faculty at Embry-Riddle, Watanabe gained substantial experience teaching a broad spectrum of mathematics courses at institutions including Duke University and Purdue University. Watanabe earned a B.A. in Pure Mathematics from UC Berkeley and a Ph.D. in Mathematics from Duke University.

Aside from his academic and research commitments, Watanabe has a passion for soccer and enjoys outdoor activities such as hiking, river canoeing, and trail running. He also serves as the faculty advisor for the Soccer Club at the Prescott Campus.

  • Ph.D. - Doctor of Philosophy in Mathematics, Duke University
  • B.A. - Bachelor of Arts in Mathematics, University of California-Berkeley
  • A.S. - Associate of Science in Mathematics, Foothill College
  • MA 242: Calculus & Analytical Geom II
  • MA 243: Calculus & Analytical Geom III
  • MA 443: Complex Variables
  • MA 345: Diff Equations & Matrix Method
  • MA 335: Intro Linear/Abstract Algebra
  • MA 435: Linear and Abstract Algebra II
  • MA 499: Special Topics in Mathematics
  1. T. Watanabe, The Birman exact sequence for the hyperelliptic mapping class group, to appear in RIMS Kokyuroku, 2024.
  2. T. Watanabe, Remarks on the Sections of Universal Hyperelliptic Curves, submitted, arXiv.2306.06278, 2023.
  3. T. Watanabe, Nonabelian Cohomology of Universal Curves in Positive Characteristic, Proc. Amer. Math. Soc. 152 (2024), no. 1, 89–103, https://doi.org/10.1090/proc/16542.
  4. T. Watanabe, The Geometry of the Hyperelliptic Torelli Group, Proceedings of the 9th Exchange of Mathematical Ideas, 2023.
  5. M. Luo, T. Watanabe, Remarks on Collino Cycles and Hyperelliptic Johnson Homomorphisms, J. Algebra, Volume 649 (2024), 96-132, ISSN 0021-8693, https://doi.org/10.1016/j.jalgebra.2024.02.038.
  6. T. Watanabe, The Geometry of the Mapping Class Group, Proceedings of the 8th Exchange of Mathematical Ideas, 2023.
  7.  T. Watanabe, Remarks on Rational Points of Universal Curves. Proc. Amer. Math. Soc. 148 (2020),no. 9, 3761–3773, DOI 10.1090/proc/15008. MR4127823.

  8. T. Watanabe, On the Sections of Universal Hyperelliptic Curves, J. Algebra Volume 533 (2019), 44–89, DOI 10.1016/j.jalgebra.2019.05.023. MR3961806.

  9. T. Watanabe, Rational Points of Universal Curves in Positive Characteristics, Trans. Amer. Math. Soc. 372 (2019), no. 11, 7639–7676, DOI 10.1090/tran/7842. MR4029677.

  10. T. Watanabe, On the Completion of the Mapping Class Group of Genus Two, J. Algebra, Volume 501 (2018), 303-327.



  1. Golomb Visiting Assistant Professor of Mathematics,  Purdue University, 08/2015 – 05/2018
  1. AMS
  2. MAA
  1. College of Arts and Sciences Teacher of the Year Award, ERAU-Prescott, 2023
  2. College of Arts and Sciences Commencement Class Marshal, ERAU-Prescott, Spring 2022
  3. Dorothea Klumpke Roberts Prize, University of California, Berkeley, 2009
  4. Highest Honors, University of California, Berkeley, 2009
  5. Phi Beta Kappa, University of California, Berkeley, 2009