{ "id": "1211.3963", "version": "v2", "published": "2012-11-16T17:38:48.000Z", "updated": "2012-12-04T10:09:02.000Z", "title": "Series Expansion of Generalized Fresnel Integrals", "authors": [ "Richard J. Mathar" ], "comment": "Remark 3 added. Corrected denominator in eq. (3.17) and enumeration of tables. Expanded references", "categories": [ "math.CA" ], "abstract": "The two Fresnel Integrals are real and imaginary part of the integral over complex-valued exp(ix^2) as a function of the upper limit. They are special cases of the integrals over x^m*exp(i*x^n) for integer powers m and n, which are essentially Incomplete Gamma Functions. We generalize one step further and focus on evaluation of the integrals with kernel p(x)*exp[i*phi(x)] and polynomials p and phi. Series reversion of phi seems not to help much, but repeated partial integration leads to a first order differential equation for an auxiliary oscillating function which allows to fuse the integrals and their complementary integrals.", "revisions": [ { "version": "v2", "updated": "2012-12-04T10:09:02.000Z" } ], "analyses": { "subjects": [ "33B20", "28-04", "65D20" ], "keywords": [ "generalized fresnel integrals", "series expansion", "first order differential equation", "essentially incomplete gamma functions", "series reversion" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1211.3963M" } } }