 We prove here that this method is applicable to any linear PDE (of arbitrary order) the source of which is a linear combination of one-dimensional delta distributions and derivatives thereof supported at an arbitrary number of particles.
<clarity>  We prove here that this method is applicable to any linear PDE (of arbitrary order) the source of which is a linear combination of one-dimensional delta distributions and derivatives thereof supported at an arbitrary number of particles.
 We prove here that this method is applicable to any linear PDE (of arbitrary order) the source of which is a linear combination of delta distributions and derivatives thereof supported at an arbitrary number of particles.