Now showing items 1-19 of 57

• #### Alternative iterative methods for nonexpansive mappings, rates of convergence and applications ﻿

[OWP-2009-19] (Mathematisches Forschungsinstitut Oberwolfach, 2009)
Alternative iterative methods for a nonexpansive mapping in a Banach space are proposed and proved to be convergent to a common solution to a fixed point problem and a variational inequality. We give rates of asymptotic ...
• #### 1214 - Arbeitsgemeinschaft: Quasiperiodic Schrödinger Operators ﻿

[OWR-2012-17] (2012) - (01 Apr - 07 Apr 2012)
This Arbeitsgemeinschaft discussed the spectral properties of quasi-periodic Schrödinger operators in one space dimension. After presenting background material on Schrödinger operators with dynamically defined potentials ...
• #### 1414 - Arbeitsgemeinschaft: Superrigidity ﻿

[OWR-2014-16] (2014) - (30 Mar - 05 Apr 2014)
The purpose of the Arbeitsgemeinschaft was to review old and new phenomenas of rigidity in mathematics. The broad spectrum of such results was covered, such as Margulis-Zimmer superrigidity, cocyle and character rigidity.
• #### Boundary Representations of Operator Spaces, and Compact Rectangular Matrix Convex Sets ﻿

[OWP-2016-24] (Mathematisches Forschungsinstitut Oberwolfach, 2016-12-13)
We initiate the study of matrix convexity for operator spaces. We define the notion of compact rectangular matrix convex set, and prove the natural analogs of the Krein-Milman and the bipolar theorems in this context. We ...
• #### 1143a - Correlations and Interactions for Random Quantum Systems ﻿

[OWR-2011-50] (2011) - (23 Oct - 29 Oct 2011)
Random quantum systems cover a broad range of mathematical models from random Schr¨odinger operators to random matrices and quantum spin models with random parameters. Their understanding requires techniques which combine ...
• #### 0813 - Disordered Systems: Random Schrödinger Operators and Random Matrices ﻿

[OWR-2008-16] (2008) - (23 Mar - 29 Mar 2008)
• #### Epsilon-hypercyclic operators ﻿

[OWP-2008-19] (Mathematisches Forschungsinstitut Oberwolfach, 2008-03-19)
For each fixed number $\varepsilon$ in $(0, 1)$ we construct a bounded linear operator on the Banach space $\ell_1$ having a certain orbit which intersects every cone of aperture $\varepsilon$, but with every orbit avoiding ...
• #### Geometry of Free Loci and Factorization of Noncommutative Polynomials ﻿

[OWP-2017-23] (Mathematisches Forschungsinstitut Oberwolfach, 2017-10-02)
The free singularity locus of a noncommutative polynomial f is defined to be the sequence $Z_n(f)=\{X\in M_n^g : \det f(X)=0\}$ of hypersurfaces. The main theorem of this article shows that f is irreducible if and only if ...
• #### 0548 - Heat Kernels, Stochastic Processes and Functional Inequalities ﻿

[OWR-2005-54] (2005) - (27 Nov - 03 Dec 2005)
The conference brought together mathematicians belonging to several fields, essentially analysis, probability and geometry. One of the main unifying topics was certainly the study of heat kernels in various contexts: ...
• #### 0915b - Hilbert Modules and Complex Geometry ﻿

[OWR-2009-20] (2009) - (05 Apr - 11 Apr 2009)
The major topics discussed in this workshop were Hilbert modules of analytic functions on domains in ℂn, Toeplitz and Hankel operators, the interplay of commutative algebra, complex analytic geometry and multivariable ...
• #### 1417 - Hilbert Modules and Complex Geometry ﻿

[OWR-2014-21] (2014) - (20 Apr - 26 Apr 2014)
The major topics discussed in the workshop were Hilbert modules of analytic functions on domains in Cn, Toeplitz and Hankel operators, reproducing kernel Hilbert spaces and multiplier algebras, the interplay of complex ...
• #### 1819 - Interactions between Operator Space Theory and Quantum Probability with Applications to Quantum Information ﻿

[OWR-2018-22] (2018) - (06 May - 12 May 2018)
Operator space theory was the joining element of our workshop. This theory is a quantisation of the theory of Banach spaces. The talks at our meeting investigated the interactions of operator space theory with operator ...
• #### 1807 - Interplay of Analysis and Probability in Applied Mathematics ﻿

[OWR-2018-6] (2018) - (11 Feb - 17 Feb 2018)
This workshop continued to foster the collaboration between researchers working in analysis and probability, respectively. Some core areas, in which this happens with high success, belong to the objectives of this meeting: ...
• #### 0907a - Low Eigenvalues of Laplace and Schrödinger Operators ﻿

[OWR-2009-6] (2009) - (08 Feb - 14 Feb 2009)
This workshop brought together researchers interested in eigenvalue problems for Laplace and Schr¨dinger operators. The main topics o of discussions and investigations covered Dirichlet and Neumann eigenvalue problems, ...
• #### 0546b - Mini-Workshop: Analysis and Computation of Microstructures in Finite Plasticity ﻿

[OWR-2005-52] (2005) - (13 Nov - 19 Nov 2005)
Plastic material behaviour is typically the result of the interaction of complex substructures on a microscopic scale. Common models of finite plasticity are based on macroscopic, phenomenological approaches and do not ...
• #### 1201b - Mini-Workshop: Boundary Value Problems and Spectral Geometry ﻿

[OWR-2012-2] (2012) - (01 Jan - 07 Jan 2012)
Boundary value problems and spectral geometry is an attractive and rapidly developing area in modern mathematical analysis. The interaction of PDE methods with concepts from operator theory and differential geometry is ...
• #### 1330a - Mini-Workshop: Direct and Inverse Spectral Theory of Almost Periodic Operators ﻿

[OWR-2013-36] (2013) - (21 Jul - 27 Jul 2013)
This mini-workshop brought together researchers working on direct and inverse spectral theory for Schrödinger operators, Jacobi matrices, and related operators. The talks reported on recent work on these models and related ...
• #### 1507b - Mini-Workshop: Discrete p-Laplacians: Spectral Theory and Variational Methods in Mathematics and Computer Science ﻿

[OWR-2015-7] (2015) - (08 Feb - 14 Feb 2015)
The p-Laplacian operators have a rich analytical theory and in the last few years they have also offered efficient tools to tackle several tasks in machine learning. During the workshop mathematicians and theoretical ...
• #### 1103a - Mini-Workshop: Dynamics of Trace Maps and Applications to Spectral Theory ﻿

[OWR-2011-3] (2011) - (16 Jan - 22 Jan 2011)
Recently some exciting results for the spectrum of Schrödinger operators with self-similar potentials and the dynamics of the associated Schrödinger equation have been established using input from complex and smooth dynamics. ...