Now showing items 1739-1742 of 1742

• #### Yet another algorithm for the symmetric eigenvalue problem ﻿

[OWP-2016-02] (Mathematisches Forschungsinstitut Oberwolfach, 2016-05-10)
In this paper we present a new algorithm for solving the symmetric matrix eigenvalue problem that works by first using a Cayley transformation to convert the symmetric matrix into a unitary one and then uses Gragg’s ...
• #### Z2-Thurston Norm and Complexity of 3-Manifolds, II ﻿

[OWP-2017-36] (Mathematisches Forschungsinstitut Oberwolfach, 2017-12-20)
In this sequel to earlier papers by three of the authors, we obtain a new bound on the complexity of a closed 3-manifold, as well as a characterisation of manifolds realising our complexity bounds. As an application, we ...
• #### Zero-dimensional symmetry ﻿

[SNAP-2015-003-EN] (Mathematisches Forschungsinstitut Oberwolfach, 2015)
This snapshot is about zero-dimensional symmetry. Thanks to recent discoveries we now understand such symmetry better than previously imagined possible. While still far from complete, a picture of zero-dimensional symmetry ...
• #### Zeta functions of 3-dimensional p-adic Lie algebras ﻿

[OWP-2007-10] (Mathematisches Forschungsinstitut Oberwolfach, 2007-03-26)
We give an explicit formula for the subalgebra zeta function of a general 3-dimensional Lie algebra over the $p$-adic integers $\mathbb{Z}_p$. To this end, we associate to such a Lie algebra a ternary quadratic form over ...