Now showing items 1447-1466 of 1837

• #### 1018 - Progress in Surface Theory ﻿

[OWR-2010-21] (2010) - (02 May - 08 May 2010)
The theory of surfaces is interpreted these days as a prototype of submanifold geometry and is characterized by the substantial application of PDE methods and methods from the theory of integrable systems, in addition to ...
• #### 1318a - Progress in Surface Theory ﻿

[OWR-2013-21] (2013) - (28 Apr - 04 May 2013)
Over the last 30 years global surface theory has become pivotal in the understanding of low dimensional global phenomena. At the same time surface geometry became a platform on which seemingly different areas of mathematics ...
• #### Prony’s method: an old trick for new problems ﻿

[SNAP-2018-004-EN] (Mathematisches Forschungsinstitut Oberwolfach, 2018-03-06)
In 1795, French mathematician Gaspard de Prony invented an ingenious trick to solve a recovery problem, aiming at reconstructing functions from their values at given points, which arose from a specific application in ...
• #### 1733 - Proof Complexity and Beyond ﻿

[OWR-2017-37] (2017) - (13 Aug - 19 Aug 2017)
Proof complexity is a multi-disciplinary intellectual endeavor that addresses questions of the general form “how difficult is it to prove certain mathematical facts?” The current workshop focused on recent advances in our ...
• #### Proof mining in metric fixed point theory and ergodic theory ﻿

[OWP-2009-05] (Mathematisches Forschungsinstitut Oberwolfach, 2009)
In this survey we present some recent applications of proof mining to the fixed point theory of (asymptotically) nonexpansive mappings and to the metastability (in the sense of Terence Tao) of ergodic averages in uniformly ...
• #### The Pseudo-Hyperresolution and Applications ﻿

[OWP-2017-17] (Mathematisches Forschungsinstitut Oberwolfach, 2017-07-04)
Resolving objects in an abelian category by injective (projective) resolutions is a fundamental problem in mathematics, and this article aims at introducing a particular solution called “Pseudo-hyperresolutions”. This ...
• #### A Pseudo-Polynomial Algorithm for Mean Payoff Stochastic Games with Perfect Information and Few Random Positions ﻿

[OWP-2015-20] (Mathematisches Forschungsinstitut Oberwolfach, 2015)
We consider two-person zero-sum stochastic mean payoff games with perfect information, or BWR-games, given by a digraph $G = (V,E)$, with local rewards $r : E \to \mathbb{Z}$, and three types of positions: black $V_B$, ...
• #### 0220 - Quadratic Forms and Algebraic Groups ﻿

[TB-2002-24] (2002) - (12 May - 18 May 2002)
• #### 1325b - Quadratic Forms and Linear Algebraic Groups ﻿

[OWR-2013-31] (2013) - (16 Jun - 22 Jun 2013)
Topics discussed at the workshop “Quadratic Forms and Linear Algebraic Groups” included besides the algebraic theory of quadratic and Hermitian forms and their Witt groups several aspects of the theory of linear algebraic ...
• #### 0920 - Quadratic Forms and Linear Algebraic Groups ﻿

[OWR-2009-25] (2009) - (10 May - 16 May 2009)
Topics discussed at the workshop Quadratic forms and linear algebraic groups included besides the algebraic theory of quadratic and Hermitian forms and their Witt groups several aspects of the theory of linear algebraic ...
• #### 0626 - Quadratic Forms and Linear Algebraic Groups ﻿

[OWR-2006-29] (2006) - (25 Jun - 01 Jul 2006)
Topics discussed at the Oberwolfach workshop Quadratic Forms and Linear Algebraic Groups, held in June 2006, included besides the algebraic theory of quadratic and Hermitian forms and their Witt groups several aspects of ...
• #### 1818 - Quadratic Forms and Related Structures over Fields ﻿

[OWR-2018-21] (2018) - (29 Apr - 05 May 2018)
The range of topics discussed at the workshop “Quadratic Forms and Related Structures over Fields” included core themes from the algebraic theory of quadratic and hermitian forms and their Witt groups, several aspects of ...
• #### 9920 - Quadratische und Hermitische Formen ﻿

[TB-1999-21] (1999) - (16 May - 22 May 1999)
• #### 0645 - Qualitative Assumptions and Regularization in High-Dimensional Statistics ﻿

[OWR-2006-49] (2006) - (05 Nov - 11 Nov 2006)
Important and exciting developments are currently underway in nonparametric statistics involving inter-play between qualitative constraints, penalization, and regularization methods. Some of these developments are taking ...
• #### A Quantitative Analysis of the “Lion-Man” Game ﻿

[OWP-2019-18] (Mathematisches Forschungsinstitut Oberwolfach, 2019-07-08)
In this paper we analyze, based on an interplay between ideas and techniques from logic and geometric analysis, a pursuit-evasion game. More precisely, we focus on a discrete lion and man game with an $\varepsilon$-capture ...
• #### Quantities that frequency-dependent selection maximizes ﻿

[OWP-2008-18] (Mathematisches Forschungsinstitut Oberwolfach, 2008-03-18)
We consider a model of frequency-dependent selection, to which we refer as the Wildcard Model, that accommodates as particular cases a number of diverse models of biologically specific situations. Two very different ...
• #### Quantum diffusion ﻿

[SNAP-2015-014-EN] (Mathematisches Forschungsinstitut Oberwolfach, 2015)
If you place a drop of ink into a glass of water, the ink will slowly dissipate into the surrounding water until it is perfectly mixed. If you record your experiment with a camera and play the film backwards, you will see ...
• #### Quantum symmetry ﻿

[SNAP-2020-005-EN] (Mathematisches Forschungsinstitut Oberwolfach, 2020-06-04)
In mathematics, symmetry is usually captured using the formalism of groups. However, the developments of the past few decades revealed the need to go beyond groups: to “quantum groups”. We explain the passage from ...
• #### Quantum symmetry ﻿

[SNAP-2020-009-EN] (Mathematisches Forschungsinstitut Oberwolfach, 2020-12-31)
The symmetry of objects plays a crucial role in many branches of mathematics and physics. It allowed, for example, the early prediction of the existence of new small particles. “Quantum symmetry” concerns a generalized ...
• #### Quasi-Equilibria and Click Times for a Variant of Muller's Ratchet ﻿

[OWP-2022-18] (Mathematisches Forschungsinstitut Oberwolfach, 2022-11-30)
Consider a population of $N$ individuals, each of them carrying a type in $\mathbb N_0$. The population evolves according to a Moran dynamics with selection and mutation, where an individual of type $k$ has the same selective ...