From initial studies of the Burkill and Ward integrals he formulated an integration process whereby the domain of integration is suitably partitioned for Riemann sums to approximate the integral of a function .
Most of Henstock 's work was concerned with integration .
From initial studies of the Burkill and Ward integrals Henstock formulated an integration process whereby the domain of integration is suitably partitioned for Riemann sums to approximate the integral of a function .
Most of Henstock 's work was concerned with integration .