This is a new publication of the Collected Papers On Wave Mechanics by Erwin Schr?dinger - one of the founding fathers of quantum physics.This valuable book should prove attractive to experts, students and all interested in the origin, the foundations and the philosophy of quantum physics. A particular reason for this is that Schr?dinger discusses two issues which are still (in the 21st century) unsettled - the physical meaning of the wave function...