Quadratic Forms and the ?-Invariant. II.
Quadratic forms over rings of dimension 1.
Quadratic Spaces with Few Isometries (Quadratic Forms and Linear Topologies VI)
Quadratische Formen in additiven Kategorien
Quadratische Formen und die Artin-Schreiersche Theorie der formal reellen Körper
Quadratische Räume mit zwei Unterräumen.
Quadratische Räume unendlicher Dimension und partielle Isomorphismen.
Quadratische Semi-Ordnungen und Quadratische Formen.
Range symmetric matrices in Minkowski space.
Real closures of commutative rings. II.
Recherches analytiques sur la surface du troisième ordre qui est la réciproque de la surface de Steiner
Remarks on quadratic equations in Banach space.
Remarques sur les matrices orthogonales (resp. symétriques) à coefficients -adiques
Représentations indécomposables
Résultats récents sur la théorie des formes quadratiques
Röhmel's equation for quadratic forms.
Round Quadratic Forms.
Semi-Symmetric Algebras: General Constructions. Part II
2000 Mathematics Subject Classification: 15A69, 15A78.In [3] we present the construction of the semi-symmetric algebra [χ](E) of a module E over a commutative ring K with unit, which generalizes the tensor algebra T(E), the symmetric algebra S(E), and the exterior algebra ∧(E), deduce some of its functorial properties, and prove a classification theorem. In the present paper we continue the study of the semi-symmetric algebra and discuss its graded dual, the corresponding canonical bilinear form,...
Shells of matrices in indefinite inner product spaces.
Sincere posets of finite prinjective type with three maximal elements and their sincere prinjective representations
Assume that K is an arbitrary field. Let (I,⪯) be a poset of finite prinjective type and let KI be the incidence K-algebra of I. A classification of all sincere posets of finite prinjective type with three maximal elements is given in Theorem 2.1. A complete list of such posets consisting of 90 diagrams is presented in Tables 2.2. Moreover, given any sincere poset I of finite prinjective type with three maximal elements, a complete set of pairwise non-isomorphic sincere indecomposable prinjective...