Now showing items 1734-1753 of 1954

    • Spatial-Skin Effect for a Spectral Problem with "Slightly Heavy" Concentrated Masses in a Thick Cascade Junction 

      [OWP-2012-10] Čečkin, Grigorij A.; Mel'nyk, Taras A. (Mathematisches Forschungsinstitut Oberwolfach, 2012-07-03)
      The asymptotic behavior (as $\varepsilon \to 0$) of eigenvalues and eigenfunctions of a boundary- value problem for the Laplace operator in a thick cascade junction with concentrated masses is studied. This cascade junction ...
    • Special values of zeta functions and areas of triangles 

      [SNAP-2015-010-EN] Kramer, Jürg; Pippich, Anna-Maria von (Mathematisches Forschungsinstitut Oberwolfach, 2015)
      In this snapshot we give a glimpse of the interplay of special values of zeta functions and volumes of triangles. Special values of zeta functions and their generalizations arise in the computation of volumes of moduli ...
    • 0449 - Spectral Analysis of Partial Differential Equations 

      [OWR-2004-53] (2004) - (28 Nov - 04 Dec 2004)
      In this workshop talks on discrete spectra, including Lieb-Thirring estimates and properties of resonances were presented. The connection between continuous and discrete spectra was discussed. Various characteristics of ...
    • Spectral Continuity for Aperiodic Quantum Systems II. Periodic Approximations in 1D 

      [OWP-2018-27] Beckus, Siegfried; Bellissard, Jean; De Nittis, Giuseppe (Mathematisches Forschungsinstitut Oberwolfach, 2018-12-17)
      The existence and construction of periodic approximations with convergent spectra is crucial in solid state physics for the spectral study of corresponding Schrödinger operators. In a forthcoming work [9] this task was ...
    • Spectral Sequences in Combinatorial Geometry: Cheeses, Inscribed Sets, and Borsuk-Ulam Type Theorems 

      [OWP-2010-08] Blagojevic, Pavle V. M.; Blagojevic, Aleksandra; Dimitrijevic McCleary, John (Mathematisches Forschungsinstitut Oberwolfach, 2010-03-12)
      Algebraic topological methods are especially suited to determining the nonexistence of continuous mappings satisfying certain properties. In combinatorial problems it is sometimes possible to define a mapping from a space ...
    • 1740 - Spectral Structures and Topological Methods in Mathematical Quasicrystals 

      [OWR-2017-46] (2017) - (01 Oct - 07 Oct 2017)
      The mathematical theory of aperiodic order grew out of various predecessors in discrete geometry, harmonic analysis and mathematical physics, and developed rapidly after the discovery of real world quasicrystals in 1982 ...
    • 1502 - Spectral Theory and Weyl Functions 

      [OWR-2015-1] (2015) - (04 Jan - 10 Jan 2015)
      The focus of the workshop was on the interplay between spectral theory of differential operators, system theory, inverse problems and properties of associated classes of analytic functions, among them the classical ...
    • 0431 - Spectral Theory in Banach Spaces and Harmonic Analysis 

      [OWR-2004-36] (2004) - (25 Jul - 31 Jul 2004)
      The workshop brought together 49 researchers from 11 different countries, representing two different research areas, spectral theory in Banach spaces and harmonic analysis, in order to promote the exchange of methods and ...
    • Spectral triples and finite summability on Cuntz-Krieger algebras 

      [OWP-2014-03] Goffeng, Magnus; Mesland, Bram (Mathematisches Forschungsinstitut Oberwolfach, 2014-05-13)
      We produce a variety of odd bounded Fredholm modules and odd spectral triples on Cuntz-Krieger algebras by means of realizing these algebras as "the algebra of functions on a non-commutative space" coming from a sub shift ...
    • Spherical Actions on Flag Varieties 

      [OWP-2014-04] Avdeev, Roman; Petukhov, Alexey (Mathematisches Forschungsinstitut Oberwolfach, 2014-04-25)
      For every finite-dimensional vector space $V$ and every $V$ -flag variety $X$ we list all connected reductive subgroups in $GL(V)$ acting spherically on $X$.
    • Spherical Arc-Length as a Global Conformal Parameter for Analytic Curves in the Riemann Sphere 

      [OWP-2016-21] Gauthier, Paul Montpetit; Nestoridis, Vassili; Papadopoulos, Athanase (Mathematisches Forschungsinstitut Oberwolfach, 2016-11-11)
      We prove that for every analytic curve in the complex plane $\mathbb{C}$, Euclidean and spherical arc-lengths are global conformal parameters. We also prove that for any analytic curve in the hyperbolic plane, hyperbolic ...
    • Splitting Necklaces, with Constraints 

      [OWP-2020-03] Jojic, Dusko; Panina, Gaiane; Zivaljevic, Rade (Mathematisches Forschungsinstitut Oberwolfach, 2020-02-11)
      We prove several versions of Alon's "necklace-splitting theorem", subject to additional constraints, as illustrated by the following results. (1) The "almost equicardinal necklace-splitting theorem" claims that, without ...
    • Square wave periodic solutions of a differential delay equation 

      [OWP-2014-09] Ivanov, Anatoli F.; Verriest, Erik I. (Mathematisches Forschungsinstitut Oberwolfach, 2014-05-13)
      We prove the existence of periodic solutions of the differential delay equation $\varepsilon\dot{x}(t) + x(t)= f(x(t-1)), \varepsilon>0$ under the assumptions that the continuous nonlinearity $f(x)$ satisfies the negative ...
    • 0144 - Stable Laws, Processes, and Applications 

      [TB-2001-48] (2001) - (28 Oct - 03 Nov 2001)
    • 1919 - Statistical and Computational Aspects of Learning with Complex Structure 

      [OWR-2019-22] (2019) - (05 May - 11 May 2019)
      The recent explosion of data that is routinely collected has led scientists to contemplate more and more sophisticated structural assumptions. Understanding how to harness and exploit such structure is key to improving the ...
    • 1339 - Statistical Inference for Complex Time Series Data 

      [OWR-2013-48] (2013) - (22 Sep - 28 Sep 2013)
      During recent years the focus of scientific interest has turned from low dimensional stationary time series to nonstationary time series and high dimensional time series. In addition new methodological challenges are coming ...
    • 1811 - Statistical Inference for Structured High-dimensional Models 

      [OWR-2018-12] (2018) - (11 Mar - 17 Mar 2018)
      High-dimensional statistical inference is a newly emerged direction of statistical science in the 21 century. Its importance is due to the increasing dimensionality and complexity of models needed to process and understand ...
    • 1004 - Statistical Issues in Prediction: what can be learned for individualized predictive medicine? 

      [OWR-2010-6] (2010) - (24 Jan - 30 Jan 2010)
      Error is unavoidable in prediction. And it is quite common, often sizable, and usually consequential. In a clinical context, especially when dealing with a terminal illness, error in prediction of residual life means that ...
    • 1925b - Statistical Methodology and Theory for Functional and Topological Data 

      [OWR-2019-28] (2019) - (16 Jun - 22 Jun 2019)
      The workshop focuses on the statistical analysis of complex data which cannot be represented as realizations of finite-dimensional random vectors. An example of such data are functional data. They arise in a variety of ...
    • 1712 - Statistical Recovery of Discrete, Geometric and Invariant Structures 

      [OWR-2017-16] (2017) - (19 Mar - 25 Mar 2017)
      The main objective of the workshop was to bring together researchers in mathematical statistics and related areas in order to discuss recent advances and problems associated with statistical recovery of geometric and ...