The reduction of star sets
Claude Ambrose Rogers · Philosophical Transactions of the Royal Society of London Series A Mathematical and Physical Sciences · 1952
Abstract Mahler’s theory of irreducible star bodies is redeveloped and extended in a modified form. It is shown that any closed bounded star set S contains a closed irreducible star set T having the same critical determinant. Further, it is shown that, if the first set S is bounded by a finite number of algebraic surfaces, then there will be an irreducible set T which is also bounded by a finite number of algebraic surfaces.