Calendar

Posted June 12, 2026

Informal Geometry and Topology Seminar Questions or comments?

Adithyan Pandikkadan, Louisiana State University
TBD

TBD

Posted June 5, 2026

Informal Geometry and Topology Seminar Questions or comments?

Adithyan Pandikkadan, Louisiana State University
Continuing our Discussion of Contact Geometry

Join us on Mondays and Thursdays at 2:30pm for our continuing discussion of Contact Geometry. For more information or to sign up to present in the informal seminar, email Matthew Lemoine (mlemo36@lsu.edu).

Posted July 3, 2026

Applied Analysis Seminar Questions or comments?

Yi-Sheng Lim, TX A&M
An operator approach to higher-order periodic homogenization of elliptic systems

The operator-asymptotic approach was introduced by Lim-Žubrinić for the homogenization of an εZ^d-periodic composite media. We demonstrate that this method can be extended to obtain higher-order convergence rates for elliptic systems. This is notable as it belongs to the class of "spectral methods", and yet does not rely on analytic perturbation theory, which is the main ingredient for these methods. In particular, we show that under certain class of well-prepared data, namely the "Bloch approximation" of vector-valued functions with compact Fourier support, the approach provides an expansion that yields an error of order ε^{n+1} in L2 and ε^n in H1, for any n. This is joint work with Josip Žubrinić (University of Zagreb).

Event contact: Stephen Shipman

Posted June 12, 2026

Informal Geometry and Topology Seminar Questions or comments?

Adithyan Pandikkadan, Louisiana State University
TBD

TBD

Posted June 5, 2026

Informal Geometry and Topology Seminar Questions or comments?

Adithyan Pandikkadan, Louisiana State University
Continuing our Discussion of Contact Geometry

Join us on Mondays and Thursdays at 2:30pm for our continuing discussion of Contact Geometry. For more information or to sign up to present in the informal seminar, email Matthew Lemoine (mlemo36@lsu.edu).