Friday, October 31, 2025 14:00to15:00

Title: Maximizing Laplace eigenvalues with density in higher dimensions

Abstract: We will discuss the problem of maximizing the k-th Laplace eigenvalue with density on a closed Riemannian manifold of dimension m ≥ 2. The Euler–Lagrange equation identifies critical densities with the energy densities of harmonic maps into spheres, linking spectral optimization to harmonic-map theory. Unlike the case m = 2, where a priori multiplicity bounds yield existence and regularity, higher dimensions allow unbounded multiplicities.

Classified as: #DepartmentofMathematicsandStatistics
Monday, October 27, 2025 15:30toFriday, October 31, 2025 16:30

✒️ TITLE / TITRE

Statistical and computational methods for the analysis of tumor heterogeneity

 

📄 ABSTRACT / RÉSUMÉ

Classified as: #DepartmentofMathematicsandStatistics
Friday, November 14, 2025 14:00to16:00

PhD Oral Defence; Mr. Gabriel Duchesne, McGill University, Dept. Mathematics and Statistics

DATE: Friday, November 14, 2025

TIME / PLACE: Defence 2:00 p.m. / BURN 1025

TITLE: Rigorous computer-assisted methods for global structures in dynamical systems

CHAIR: Prof. Jérôme Vétois

SUPERVISOR: Prof. Jean Philippe Lessard

INTERNAL MEMBER: Prof. Gantumur Tsogtgerel

INTERNAL EXAMINER: Prof. Rustum Choksi

Tuesday, November 25, 2025 10:00to12:00

PhD Oral Defence; Mr. Ndiamé Ndiaye

DATE: Tuesday, November 25, 2025

TIME / PLACE: Defence 10:15 a.m. / BURN 1025

TITLE: Guarantee of Cliques and Uncertainty of Trees: Ramsey Theory and Leaf Powers

CHAIR: Prof. Jérôme Vétois

CO-SUPERVISOR: Prof. Sergey Norin

CO-SUPERVISOR: Prof. Adrian Vetta

INTERNAL EXAMINER: Prof. Hamed Hatami

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