MARKO ERCEG

Marko Erceg Marko Erceg Marko Erceg

Assistant professor at the Departmant of Mathematics, Faculty of Science, University of Zagreb.

Research interest

PDEs and functional analysis: microlocal analysis (semiclassical measures, H-measures and variants), Friedrichs systems, operator theory.

Teaching

Professor for: Applied mathematical analysis, Methods in mathematical physics, Variational calculus and Convex analysis.

Teaching asisstant for: PDEs.

Friedrichs systems in a Hilbert space framework: solvability and multiplicity

We present a purely operator-theoretic description of abstract Friedrichs systems via the universal operator extension theory of dual pairs (Grubb, 1968). For a given Friedrichs system the existence of a boundary condition such that the problem is well-posed is shown, as well as a classification of all such boundary conditions. [Read more]

Second commutation lemma for fractional H-measures

In this paper we explore the transport property of fractional H-measures by studying fractional derivatives of commutators of multiplication and Fourier multiplier operators. In particular, we prove the generalised Second commutation lemma suitable for fractional H-measures. [Read more]