2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/53894A fundamental length is introduced into physics in a way which respects the principles of relativity and quantum field theory. This improves the properties of quantum field theory: divergences are removed. How to quantize gravity is also indicated. When the fundamental length tends to zero the present version of quantum field theory is recovered.(Latex file 9 pages) e-mail : padma@imsc.ernet.in - IITM-TH-94-03High Energy Physics - Theorytext