Research
Research Interests
My research interests lie at the intersection of harmonic analysis, number theory, spectral theory, and partial differential equations.
Publications
- C. Puntini, L. Roberti, and E. Stefanescu, On large-scale wind-drift ocean currents: An asymptotic approach in spherical coordinates - Journal of Fluid Mechanics, Volume 1044, 2026
- L. Roberti and E.Stefanescu, Global-in-time existence, uniqueness and stability of sulotions to a model of the antarctic circumpolar current - Discrete and Continuous Dynamical Systems, Volume 49, 2026
- E. Stefanescu, On the maximal volume of empty convex bodies amidst multivariate dilates of a lacunary integer sequence - Mathematische Zeitschrift, Volume 311, 2025.
- E. Stefanescu, The dispersion of dilated lacunary sequences, with applications in multiplicative Diophantine approximation - Advances in Mathematics, Volume 461, 2025.
- E. Stefanescu, The atmospheric Ekman spiral for piecewise uniform eddy viscosity - Physica Scripta, Vol. 99, No. 9, 2024.
Preprints
- E. Stefanescu, Resolvent bounds and eigenvalue estimates of generalized Schrödinger operators with complex potentials on compact manifolds - arXiv:2609.10127.
- J.-C. Cuenin, K. Merz, E. Stefanescu, Random Schrödinger operators on manifolds and abstract bounds for multiplier-type operators - arXiv:2606.19075.
- M. Hauke, A. Shubin, E. Stefanescu, and A. Zafeiropoulos, Circle coverings driven by arithmetic sequences: a percolation approach to Diophantine approximation and fractal intersections - arXiv:2604.02005.
- E. Stefanescu, Eigenvalue bounds for non-self-adjoint Schr\"odinger operators and pseudodifferential generalizations - to appear in SEMA SIMAI SPRINGER Series.
- I. Berkes, E. Stefanescu, and R.F. Tichy, Lacunary Series, Nonlinear Functionals and Banach Space Structure - to appear in Studia Mathematica.
All my publications and preprints can also be found on Research Gate
Curriculum Vitae
You can download my Curriculum Vitae here.