Now showing items 1-8 of 8

• #### A 3-local characterization of Co2 ﻿

[OWP-2008-11] (Mathematisches Forschungsinstitut Oberwolfach, 2008-03-15)
Conway’s second largest simple group, $Co_2$, is characterized by the centralizer of an element of order 3 and certain fusion data.
• #### Formal punctured ribbons and two-dimensional local fields ﻿

[OWP-2008-01] (Mathematisches Forschungsinstitut Oberwolfach, 2008-03-05)
We investigate formal ribbons on curves. Roughly speaking, formal ribbon is a family of locally linearly compact vector spaces on a curve. We establish a one-to-one correspondence between formal ribbons on curves plus some ...
• #### Hecke duality relations of Jacobi forms ﻿

[OWP-2008-03] (Mathematisches Forschungsinstitut Oberwolfach, 2008-03-07)
In this paper we introduce a new subspace of Jacobi forms of higher degree via certain relations among Fourier coefficients. We prove that this space can also be characterized by duality properties of certain distinguished ...
• #### Interpolation in Bernstein and Paley-Wiener Spaces ﻿

[OWP-2008-04] (Mathematisches Forschungsinstitut Oberwolfach, 2008-03-08)
We construct closed sets S of arbitrarily small measure with the property: given any discrete set L, every l-function on L can be interpolated by an L-function with spectrum on F. This should be contrasted against ...
• #### Non-Standard Behavior of Density Estimators for Sums of Squared Observations ﻿

[OWP-2008-07] (Mathematisches Forschungsinstitut Oberwolfach, 2008-03-11)
It has been shown recently that, under an appropriate integrability condition, densities of functions of independent and identically distributed random variables can be estimated at the parametric rate by a local U-statistic, ...
• #### Nonlinear Optimization for Matroid Intersection and Extensions ﻿

[OWP-2008-14] (Mathematisches Forschungsinstitut Oberwolfach, 2008-03-17)
We address optimization of nonlinear functions of the form $f(W_x)$ , where $f : \mathbb{R}^d \to \mathbb{R}$ is a nonlinear function, $W$ is a $d \times n$ matrix, and feasible $x$ are in some large finite set $\mathcal{F}$ ...
• #### Nonlinear optimization over a Weighted Independence System ﻿

[OWP-2008-10] (Mathematisches Forschungsinstitut Oberwolfach, 2008-03-14)
We consider the problem of optimizing a nonlinear objective function over a weighted independence system presented by a linear-optimization oracle. We provide a polynomial-time algorithm that determines an r-best solution ...
• #### Upper tails for intersection local times of random walks in supercritical dimensions ﻿

[OWP-2008-02] (Mathematisches Forschungsinstitut Oberwolfach, 2008-03-06)
We determine the precise asymptotics of the logarithmic upper tail probability of the total intersection local time of $p$ independent random walks in $\mathbb{Z}^d$ under the assumption $p(d-2)>d$. Our approach allows a ...