{ "items" : [
    { "id" : "http://dbpedia.org/resource/Poisson_summation_formula"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "In mathematics, the Poisson summation formula is an equation that relates the Fourier series coefficients of the periodic summation of a function to values of the function's continuous Fourier transform.  Consequently, the periodic summation of a function is completely defined by discrete samples of the original function's Fourier transform.  And conversely, the periodic summation of a function's Fourier transform is completely defined by discrete samples of the original function."] } } }
