2 citations · 2 across the 4 of their papers we have counts for
4 papers
On Dirac's Delta Calculus
Sergio Ferreira Cortizo
It is shown that theories already presented as rigorous mathematical formalizations of widespread manipulations of Dirac's delta function are all unsatisfactory, and a new alternat…
Virtual Calculus - Part II
Sergio Ferreira Cortizo
A simultaneous extension of real numbers set and the class of real functions is discussed.
Virtual Calculus - Part I
Sergio Ferreira Cortizo
An alternative organization for Differential and Integral Calculus, based on an extension of real numbers that include infinitesimal and infinite quantities, is presented. Only Ele…
Virtual Extensions
Sergio Ferreira Cortizo
A process of extending sets which can be used as foundation for an alternative organization for Differential and Integral Calculus is presented.