Spectral Analysis for $GL_2$

Modular Forms viewed on Groups

Basic Representation Theory

Classification of Unitary Irreducible Representations of $PGL_2(R)$

Spectral Analysis of $PGL_2(Z) \backslash PGL_2(R)$

Global Analysis for Congruence Subgroups

Pre-classification of Admissible Irreducible Representations of $GL_2(Q_p)$

A Talk as Summary and Extension