E-mail:

isabel (dot) beach (at) mail (dot) utoronto (dot) ca

About Me:

I am a mathematics PhD student at the University of Toronto. My main research interest is quantitative topology.

Papers:

• I. Beach, H. Contreras Peruyero, E. Griffin, R. Rotman, C. Searle. Lengths of Orthogonal Geodesic Chords on Riemannian Manifolds. arXiv:2509.19620.
• I. Beach. Short Simple Orthogonal Geodesic Chords on a 2-Disk with Convex Boundary. arXiv:2507.07797.
• I. Beach, H. Contreras Peruyero, R. Rotman, and C. Searle. Linear Bounds for the Lengths of Geodesics on Manifolds With Curvature Bounded Below. Journal of Geometric Analysis. 2025. Vol. 35, article number 217. arXiv:2410.10975. DOI:10.1007/s12220-025-02003-6.
• I. Beach. Short Simple Geodesic Loops on a 2-Sphere. 2024. arXiv:2407.12673
• I. Beach and R. Rotman. The Length of the Shortest Closed Geodesic on a Surface of Finite Area. Proceedings of the American Mathematical Society. 2020. Vol. 148 (12), p. 5355-5367. arXiv:1912.07711. DOI:10.1090/proc/15194.

Invited Presentations:

• 2025. Quantitative Topology and Geodesics. Pennsylvania State University Geometry Lunch Seminar. State College, PA, United States.
• 2025. The Quantitative Geometry of Geodesics. Centro de Ciencias Matematicas UNAM Geometry and Dynamics Seminar. Online.
• 2025. Short Simple Orthogonal Geodesic Chords. AMS Joint Mathematics Meetings. Seattle, WA, United States.
• 2024. Short Simple Geodesic Loops on a 2-sphere. AMS Joint Mathematics Meetings. San Francisco, CA, United States.
• 2023. The Length of the Shortest Closed Geodesic on a Surface of Finite Area. AMS Joint Mathematics Meetings. Boston, MA, United States.
• 2023. The Length of the Shortest Closed Geodesic on a Surface of Finite Area. University of Oregon Topology/Geometry Zoom Seminar. Online.
• 2022. The Length of the Shortest Closed Geodesic on a Surface of Finite Area. Midwest Geometry Conference. Wichita, KS, United States.
• 2021. The Length of the Shortest Closed Geodesic on a Surface of Finite Area. AMS Spring Eastern Sectional Meeting. Online.

Other Presentations:

• 2025. The Quantitative Geometry of Geodesics. HIM Metric Analysis Trimester Program Seminar. Bonn, NRW, Germany.
• 2024. The Quantitative Geometry of Geodesics. SLMath Graduate Student Seminar. Berkeley, CA, United States.
• 2019. The Beauty of the Hyperbolic Plane. CUMC. Online.

Teaching:

• Spring 2025: MAT187 (Calculus II) (Instructor)
• Spring 2024: MAT224 (Linear Algebra II) (TA)
• Fall 2023: MAT464/MAT1342 (Riemannian Geometry) (TA)
• Summer 2023: MAT135 (Calculus I) (TA)
• Spring 2023: MAT247 (Algebra II) (TA)
• Fall 2022: MAT240 (TA), MAT464/MAT1342 (Riemannian Geometry) (TA)
• Spring 2022: MAT224 (Linear Algebra II) (Grading TA)
• Fall 2021: MAT464/MAT1342 (Riemannian Geometry) (TA)
• Summer 2021: MAT133 (Calculus and Linear Algebra for Commerce) (Lecture TA)
• Spring 2020: MAT136 (Calculus II) (TA)
• Fall 2019: MAT135 (Calculus I) (TA)

Workshops:

• Banff International Research Station Oaxaca, Mixtures of Probability and Geometry, May 25 - May 30 2025
• SLMath, Program Associate Fellowship (New Frontiers in Curvature), August 19 - December 20 2024
• Institute for Advanced Study, Summer Collaborators Program, July 3 - July 31 2024
• Banff International Research Station, Women in Geometry 3, September 24 - September 29 2023
• MSRI/University of Oxford, Metric Geometry and Geometric Analysis Summer Gradute School July 11 - July 22 2022

Other Activities:

• I helped design the newsletter for the University of Toronto Mathematics Graduate Student Association.
• I designed the poster for the 2023 and 2024 Bird's Eye Conference at the University of Toronto.