Abstract
The study of the spectral measure for a second-order nonnegative elliptic differential operator acting on smooth fields defined over a noncompact manifold of arbitrary dimension is carried out, using the spectral theorem and a heat type kernel expansion. A set of sum rules concerning the spectral density is given. The singular structure of the resolvent kernel is briefly discussed. Some applications to quantum field theory are pointed out.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.