TY - JOUR AU - Fassari, Silvestro AU - Gadella Urquiza, Manuel AU - Glasser, M. Lawrence AU - Nieto Calzada, Luis Miguel AU - Rinaldi, F. PY - 2019 SN - 0031-8949 UR - http://uvadoc.uva.es/handle/10324/40850 AB - We study three solvable two-dimensional systems perturbed by a point interaction centered at the origin. The unperturbed systems are the isotropic harmonic oscillator, a square pyramidal potential and a combination thereof. We study the spectrum of... LA - spa TI - Spectral properties of the two-dimensional Schrödinger Hamiltonian with various solvable confinements in the presence of a central point perturbation DO - 10.1088/1402-4896/ab0589 ER -