I’m a PhD student in mathematics at the Technion – Israel Institute of Technology. My advisor is Associate Professor Ram Band. I expect to complete my PhD by the end of 2026 and am looking for a position starting in fall 2027 :-)
My research lies at the intersection of spectral theory, spectral geometry, and mathematical physics, and I am especially interested in Schrödinger operators on metric and discrete graphs.
You can find my CV here.
Feel free to contact me at:
giladsofer95[at]gmail.com
My research in spectral theory and spectral geometry is motivated by questions in mathematical physics, with a focus on quantum (metric) graphs and discrete graphs. I am especially interested in how the geometry and topology of these graphs shape the spectrum of the associated Schrödinger operators. This is related to topics such as nodal geometry, spectral flow, and eigenvalue comparison results. I am also very interested in the interplay between geometry, spectrum, and dynamics in periodic and aperiodic graphs, and how aperiodic order can give rise to interesting and surprising spectral properties. Recently, I've also been interested in topological indices in periodic and aperiodic graphs, and their possible applications in solid state physics.
You can also find me on Google Scholar and Research gate.
Preprints:
Spectral flow and Robin domains on metric graphs. Joint with R. Band and M. Prokhorova . Submitted to Israel Journal of Mathematics (2025).
Publications:
Time evolution and the Schrödinger equation on time dependent metric graphs. Joint with U. Smilansky. Journal of Physics A: Mathematical and Theoretical (2024).
Differences between Robin and Neumann eigenvalues on metric graphs. Joint with R. Band and H. Schanz. Annales Henri Poincaré (2023).
Three classification results in the theory of weighted hardy spaces on the ball. Joint with D. Ofek. Complex Analysis and Operator Theory (2021).
M.Sc. Thesis:
Spectral curves of quantum graphs with δs type vertex conditions (Technion, 2022).
Outside of research, I enjoy playing piano, and am interested in classical music theory and history. I also volunteer with at-risk youth through the Otot association.
I am also interested in recreational mathematics and mathematical education, and ways to make mathematical ideas more intuitive and engaging. Here are some recreational talks and interviews I participated in (1, 2, 3).
For fun, here are some educational animations I made of isometries of the hyperbolic plane and Poincaré disk.