Now showing items 335-343 of 343

• #### Weakly Complex Homogeneous Spaces ﻿

[OWP-2012-04] (Mathematisches Forschungsinstitut Oberwolfach, 2012-04-24)
We complete our recent classification of compact inner symmetric spaces with weakly complex tangent bundle by filling up a case which was left open, and extend this classification to the larger category of compact homogeneous ...
• #### Weighted Fourier inequalities for radial functions ﻿

[OWP-2009-26] (Mathematisches Forschungsinstitut Oberwolfach, 2009-03-19)
Weighted $L^p(\mathbb{R}^n) \to L^q(\mathbb{R}^n)$ Fourier inequalities are studied. We prove Pitt-Boas type results on integrability with power weights of the Fourier transform of a radial function.
• #### Weighted Surface Algebras: General Version ﻿

[OWP-2019-07] (Mathematisches Forschungsinstitut Oberwolfach, 2019-02-28)
We introduce general weighted surface algebras of triangulated surfaces with arbitrarily oriented triangles and describe their basic properties. In particular, we prove that all these algebras, except the singular disc, ...
• #### A Well-Posedness Result for Viscous Compressible Fluids with Only Bounded Density ﻿

[OWP-2018-10] (Mathematisches Forschungsinstitut Oberwolfach, 2018-05-28)
We are concerned with the existence and uniqueness of solutions with only bounded density for the barotropic compressible Navier-Stokes equations. Assuming that the initial velocity has slightly sub-critical regularity and ...
• #### The Weyl group of the Curtz algebra ﻿

[OWP-2011-31] (Mathematisches Forschungsinstitut Oberwolfach, 2011-05-28)
The Weyl group of the Cuntz algebra $\mathcal{O}_n$ is investigated. This is (isomorphic to) the group of polynomial automorphisms $\lambda_u$ of $\mathcal{O}_n$, namely those induced by unitaries u that can be written ...
• #### Weyl-Titchmarsh Functions of Vector-Valued Sturm-Liouville Operators on the Unit Interval ﻿

[OWP-2008-13] (Mathematisches Forschungsinstitut Oberwolfach, 2008)
The matrix-valued Weyl-Titchmarsh functions $M(\lambda)$ of vector-valued Sturm-Liouville operators on the unit interval with the Dirichlet boundary conditions are considered. The collection of the eigenvalues (i.e., poles ...
• #### 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 ...
• #### 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 ...