Alcune proprietà delle varietà algebriche reali
Algebra a theorie čísel
Algebra Retracts and Poincaré-Series.
Algebra Structure on Minimal Resolutions of Gorenstein Rings of Embedding Codimension Four.
Algebraic characterization of finite (branched) coverings
Every continuous map X → S defines, by composition, a homomorphism between the corresponding algebras of real-valued continuous functions C(S) → C(X). This paper deals with algebraic properties of the homomorphism C(S) → C(X) in relation to topological properties of the map X → S. The main result of the paper states that a continuous map X → S between topological manifolds is a finite (branched) covering, i.e., an open and closed map whose fibres are finite, if and only if the induced homomorphism...
Algebraic closure of modules.
Algebraic integrability for minimum energy curves
This paper deals with integrability issues of the Euler-Lagrange equations associated to a variational problem, where the energy function depends on acceleration and drag. Although the motivation came from applications to path planning of underwater robot manipulators, the approach is rather theoretical and the main difficulties result from the fact that the power needed to push an object through a fluid increases as the cube of its speed.
Algebraic Methods for Studying Interactions Between Epidemiological Variables
BackgroundIndependence models among variables is one of the most relevant topics in epidemiology, particularly in molecular epidemiology for the study of gene-gene and gene-environment interactions. They have been studied using three main kinds of analysis: regression analysis, data mining approaches and Bayesian model selection. Recently, methods of algebraic statistics have been extensively used for applications to biology. In this paper we present...
Algebraic methods in the theory of theta functions
Algebraic number fields with the principal ideal condition
Algebraic proofs for geometric statements.
Algebraic properties of edge ideals via combinatorial topology.
Algebraic properties of rings of continuous functions
This paper is devoted to the study of algebraic properties of rings of continuous functions. Our aim is to show that these rings, even if they are highly non-noetherian, have properties quite similar to the elementary properties of noetherian rings: we give going-up and going-down theorems, a characterization of z-ideals and of primary ideals having as radical a maximal ideal and a flatness criterion which is entirely analogous to the one for modules over principal ideal domains.
Algebraic tubular neighbourhoods I.
Algebraic Vector Bundles over A3 Are Trivial.
Algebraically solvable problems: describing polynomials as equivalent to explicit solutions.
Algebraische Eigenschaften der lokalen Ringe in den Spitzen der Hilbertschen Modulgruppen.
Algebras with finitely generated invariant subalgebras
We classify all finitely generated integral algebras with a rational action of a reductive group such that any invariant subalgebra is finitely generated. Some results on affine embeddings of homogeneous spaces are also given.
Algèbre linéaire sur et élimination
Algèbres de Hadamard