The symposium "MEGA-90 - Effective Methods in Algebraic Geome try" was held in Castiglioncello (Livorno, Italy) in April 17-211990. The themes - we quote from the "Call for papers"--Were the fol lowing: - Effective methods and complexity issues in commutative algebra, pro jectiv…
Elliptic curve cryptography is a major challenger to the dominant RSA/DSA systems, with increased speed, less memory required and smaller key sizes. This book summarises knowledge built up within Hewlett Packard over a number of years.
Elliptic curve cryptography is a major challenger to the dominant RSA/DSA systems, with increased speed, less memory required and smaller key sizes. This book summarises knowledge built up within Hewlett Packard over a number of years.
A set which can be defined by systems of polynomial inequalities is called semialgebraic. When such a description is possible locally around every point, by means of analytic inequalities varying with the point, the set is called semianalytic. If one single system of strict ineq…
Introduction Preliminaries Gaeta's theorem Divisors on an ACM subscheme of projective spaces Gorenstein ideals and Gorenstein liaison CI-liaison invariants Geometric applications of the CI-liaison invariants Glicci curves on arithmetically Cohen-Macaulay surfaces Unobstructednes…
In chapter one we address the classification of finite subgroups of [italic capitals]SL([bold]3,[double-struck capital]C). This is followed by a general method to find invariant polynomials and their relations of finite subgroups of [italic capitals]GL([bold]3,[double-struck cap…
In this paper we provide a unified way of looking at the apparently sporadic Weyl groups connected with the classical geometry of surfaces, namely those with 1) the rational double points, 2) the Picard groups of Del Pezzo surfaces, 3) the Kodaira-type degenerations of elliptic …
