activity
19992011
most citedClassification of commutative algebras and tube realizations of hyperquadrics

14 citations · 30 across the 11 of their papers we have counts for

collaborators

11 papers

math.AC2011★ 2 cited

Nilpotent algebras and affinely homogeneous surfaces

Gregor Fels, Wilhelm Kaup

The paper is devoted to the investigation of finite dimensional commutative nilpotent (associative) algebras N over an arbitrary base field of characteristic zero. Due to the lack…

math.CV2010★ 1 cited

Isolated hypersurface singularities and polynomial realizations of affine quadrics

G. Fels, A. Isaev, W. Kaup +1

Let , be hypersurface germs in $\CC^m$, each having a quasi-homogeneous isolated singularity at the origin. We show that the biholomorphic equivalence problem for …

math.CV2009★ 2 cited

CR-quadrics with a symmetry property

Wilhelm Kaup

Motivated by the Shilov boundaries of bounded symmetric domains we consider arbitrary CR-quadrics in a complex linear space (of finite dimension) that have a certain symmetry prope…

math.CV2009

Regularization of Local CR-Automorphisms of Real-Analytic CR-Manifolds

A. Isaev., W. Kaup

Let M be a connected generic real-analytic CR-submanifold of a finite-dimensional complex vector space E. Suppose that for every point a in M the Lie algebra hol(M,a) of germs of a…

math.CV2009★ 14 cited

Classification of commutative algebras and tube realizations of hyperquadrics

G. Fels, W. Kaup

In this paper we classify up to affine equivalence all local tube realizations of real hyperquadrics in C^n. We show that this problem can be reduced to the classification, up to i…

math.CV2008★ 2 cited

Local tube realizations of CR-manifolds and maximal abelian subalgebras

Gregor Fels, Wilhelm Kaup

For every CR-manifold germ (M,a) local tube realizations are characterized by certain abelian subalgebras of the real Lie algebra hol(M,a) of all germs of (real-analytic) infinites…