THE BONNESEN-TYPE INEQUALITIES IN A PLANE OF CONSTANT CURVATURE
THE BONNESEN-TYPE INEQUALITIES IN A PLANE OF CONSTANT CURVATURE
We investigate the containment measure of one domain to contain in another domain in a plane <TEX>$X^{\kappa}$</TEX> of constant curvature. We obtain some Bonnesen-type inequalities involving the area, length, radius of the inscribed and the circumscribed disc of a domain D in <TEX>$X^{\kappa}$</TEX>.