The words contained in this file might help you see if this file matches what you are looking for:

...The dirac delta properties and representations concepts of primary interest sequences functions multiple formal deltas in dimensions generalized ortho normal coordinates green function for laplacian examples zeroes argument endpoint see tools trade mega application laplace operator use d x to introduce its n change inverse dimension integration variable add vanhoys little perturbation at center a square well continuous mass charge distributions are common physics often as models point charges masses need be combined with or is introduced represent finite chunk packed into zero width bin volume begin defining presented few applications near end this handout most significant example identification problem electrostatics contact tank alumni rice edu p aul m english physicist whose calculations predicted that particles should exist negative energies led him suggest electron had an antiparticle antielectron was discovered subsequently by carl anderson came called positron also developed ten...