Cornean, Horia D.Michelangeli, AlessandroYajima, Kenji2019-10-102019-10-102019-10-10https://openscience.sissa.it/handle/1963/35340Mathematics Subject Classiffcation 2010: 35P15, 35J10, 47A40, 81Q10enTwo-dimensional point interactionthreshold expansionresonances at thresholdembedded eigenvalue at thresholdLp-boundedness of wave operatorsTwo-dimensional Schrödinger operators with point interactions: Threshold expansions, zero modes and Lp-boundedness of wave operatorsPreprint