Browsing by Issue Date

Now showing items 1181-1200 of 1987

    • A potential reduction algorithm for two-person zero-sum mean payoff stochastic games 

      [OWP-2015-19] Boros, Endre; Elbassioni, Khaled; Gurvich, Vladimir; Makino, Kazuhisa (Mathematisches Forschungsinstitut Oberwolfach, 2015)
      We suggest a new algorithm for two-person zero-sum undiscounted stochastic games focusing on stationary strategies. Given a positive real $\epsilon$, let us call a stochastic game $\epsilon$-ergodic, if its values from any ...

    • 1520 - Enveloping Algebras and Geometric Representation Theory 

      [OWR-2015-25] (2015) - (10 May - 16 May 2015)
      The workshop brought together experts investigating algebraic Lie theory from the geometric and categorical viewpoints.

    • 1544a - History of Mathematics: Models and Visualization in the Mathematical and Physical Sciences 

      [OWR-2015-47] (2015) - (25 Oct - 31 Oct 2015)
      This workshop brought together historians of mathematics and science as well as mathematicians to explore important historical developments connected with models and visual elements in the mathematical and physical sciences. ...

    • Modelling the spread of brain tumours 

      [SNAP-2015-013-EN] Swan, Amanda; Murtha, Albert (Mathematisches Forschungsinstitut Oberwolfach, 2015)
      The study of mathematical biology attempts to use mathematical models to draw useful conclusions about biological systems. Here, we consider the modelling of brain tumour spread with the ultimate goal of improving treatment ...

    • 1551 - Non-Archimedean Geometry and Applications 

      [OWR-2015-57] (2015) - (13 Dec - 19 Dec 2015)
      The workshop focused on recent developments in non-Archimedean analytic geometry with various applications to other fields, in particular to number theory and algebraic geometry. These applications included Mirror Symmetry, ...

    • 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 ...

    • Simulation of Multibody Systems with Servo Constraints through Optimal Control 

      [OWP-2015-18] Altmann, Robert; Heiland, Jan (Mathematisches Forschungsinstitut Oberwolfach, 2015)
      We consider mechanical systems where the dynamics are partially constrained to prescribed trajectories. An example for such a system is a building crane with a load and the requirement that the load moves on a certain path. ...

    • 1508c - Mini-Workshop: Deformation Quantization: between formal to strict 

      [OWR-2015-11] (2015) - (15 Feb - 21 Feb 2015)
      The philosophy of deformation was proposed by Bayen, Flato, Fronsdal, Lichnerowicz, and Sternheimer in the seventies and since then, many developments occurred. Deformation quantization is based on such a philosophy in ...

    • 1530 - Dynamische Systeme 

      [OWR-2015-34] (2015) - (19 Jul - 25 Jul 2015)
      This workshop continued the biannual series at Oberwolfach on Dynamical Systems that started as the “Moser-Zehnder meeting” in 1981. The main themes of the workshop are the new results and developments in the area of ...

    • Ideas of Newton-Okounkov bodies 

      [SNAP-2015-008-EN] Kiritchenko, Valentina; Timorin, Vladlen; Smirnov, Evgeny (Mathematisches Forschungsinstitut Oberwolfach, 2015)
      In this snapshot, we will consider the problem of finding the number of solutions to a given system of polynomial equations. This question leads to the theory of Newton polytopes and Newton-Okounkov bodies of which we will ...

    • 1507a - Mini-Workshop: Modern Applications of s-numbers and Operator Ideals 

      [OWR-2015-6] (2015) - (08 Feb - 14 Feb 2015)
      The main aim of this mini-workshop was to present and discuss some modern applications of the functional-analytic concepts of $s$-numbers and operator ideals in areas like Numerical Analysis, Theory of Function Spaces, ...

    • 1533 - Mathematical Aspects of Hydrodynamics 

      [OWR-2015-37] (2015) - (09 Aug - 15 Aug 2015)
      The workshop dealt with the partial differential equations that describe fluid motion, namely the Euler equations and the Navier-Stokes equations. This included topics in both inviscid and viscous fluids in two and three ...

    • 1517b - Mirror Symmetry, Hodge Theory and Differential Equations 

      [OWR-2015-22] (2015) - (19 Apr - 25 Apr 2015)
      The following is the report on the Oberwolfach workshop Mirror Symmetry, Hodge Theory and Differential Equations (April 2015), which brought together researchers from various areas such as quantum cohomology, complex ...

    • 1545a - Mini-Workshop: Friezes 

      [OWR-2015-48] (2015) - (01 Nov - 07 Nov 2015)
      Frieze patterns were introduced in the early 1970s by Coxeter. They are infinite arrays of numbers in which every four neighbouring entries always satisfy the same arithmetic relation. Amazingly, friezes appear in many ...

    • A Pseudo-Polynomial Algorithm for Mean Payoff Stochastic Games with Perfect Information and Few Random Positions 

      [OWP-2015-20] Boros, Endre; Elbassioni, Khaled; Gurvich, Vladimir; Makino, Kazuhisa (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 $V_B$, ...

    • Milnor fibre homology via deformation 

      [OWP-2015-22] Siersma, Dirk; Tibăr, Mihai-Marius (Mathematisches Forschungsinstitut Oberwolfach, 2015)
      In case of one-dimensional singular locus, we use deformations in order toget refined information about the Betti numbers of the Milnor fibre.

    • 1532 - Partial Differential Equations 

      [OWR-2015-36] (2015) - (02 Aug - 08 Aug 2015)
      The workshop dealt with nonlinear partial differential equations and some applications in geometry, touching several different topics such as minimal surfaces and harmonic maps, equations in conformal geometry, geometric ...

    • 1521 - Probabilistic Techniques in Modern Statistics 

      [OWR-2015-26] (2015) - (17 May - 23 May 2015)
      The aim of the workshop was to bring together researchers in modern probability theory and statistics to discuss recent advances and challenging open problems at the intersection of both fields. It focussed on the most ...

    • 1538 - Recent Developments in the Numerics of Nonlinear Hyperbolic Conservation Laws 

      [OWR-2015-41] (2015) - (13 Sep - 19 Sep 2015)
      The development of reliable numerical methods for the simulation of real life problems requires both a fundamental knowledge in the field of numerical analysis and a proper experience in practical applications as well as ...

    • 1546a - Mini-Workshop: Singular Curves on K3 Surfaces and Hyperkähler Manifolds 

      [OWR-2015-51] (2015) - (08 Nov - 14 Nov 2015)
      The workshop focused on Severi varieties on $K3$ surfaces, hyperkähler manifolds and their automorphisms. The main aim was to bring researchers in deformation theory of curves and singularities together with researchers ...