output
20032026
most citedEuler and Chebyshev: From the sphere to the plane and backwards

12 citations

Showing 2008Show all

16 papers · 1 filter

math.AT2008

On the mod - p cohomology of Out(F_{2(p-1)}

Henry Glover, Hans-Werner Henn

We study the mod-p cohomology of the group Out(F_n) of outer automorphisms of the free group F_n in the case n=2(p-1) which is the smallest n for which the p-rank of this group is…

math.AT2008★ 7 cited

The homotopy of the K(2)-local Moore spectrum at the prime 3 revisited

Hans-Werner Henn, Nasko Karamanov, Mark Mahowald

In this paper we use the approach introduced in an earlier paper by Goerss, Henn, Mahowald and Rezk in order to analyze the homotopy groups of L_{K(2)}V(0), the mod-3 Moore spectru…

math.AG2008

Generalized Demailly-Semple jet bundles and holomorphic mappings into complex manifolds

Gianluca Pacienza, Erwan Rousseau

Motivated by the Green-Griffiths conjecture, we study maximal rank holomorphic maps from $\C^p$ into complex manifolds. When such maps should in principle be more tractable t…

math.SG2008

Obstructions to the existence of monotone Lagrangian embeddings into cotangent bundles of manifolds fibered over the circle

AGNès Gadbled

We extend constructions and results of Damian to get topological obstructions to the existence of closed monotone Lagrangian embeddings into the cotangent bundle of a space which i…

math.RT2008★ 1 cited

Une classe d'espaces préhomogènes de type parabolique faiblement sphériques

Iris Muller

For absolutely simple, finite-dimensional Lie algebras g of rank at least 2, defined over a local field of characteristic 0 and admitting a graduation: g=g(-2)+g(-1)+g(0)+g(1)+g(2)…

math.ST2008★ 9 cited

Adaptive asymptotically efficient estimation in heteroscedastic nonparametric regression via model selection

Leonid Galtchouk, Serguey Pergamenshchikov

The paper deals with asymptotic properties of the adaptive procedure proposed in the author paper, 2007, for estimating a unknown nonparametric regression. We prove that this proce…

math.ST2008

On asymptotic normality of sequential LS-estimates of unstable autoregressive processes

Leonid Galtchouk, Victor Konev

For estimating the unknown parameters in an unstable autoregressive AR(p), the paper proposes sequential least squares estimates with a special stopping time defined by the trace o…

math.AT2008

Quadratic functors on pointed categories

Manfred Hartl, Christine Vespa

We study polynomial functors of degree 2, called quadratic, with values in the category of abelian groups , and whose source category is an arbitrary category $\C$ with null ob…

math.AG2008

Hyperbolicity of geometric orbifolds

Erwan Rousseau

We study complex hyperbolicity in the setting of geometric orbifolds introduced by F. Campana. Generalizing classical methods to this context, we obtain degeneracy statements for e…

math.AT2008

Sur l'homologie des groupes orthogonaux et symplectiques à coefficients tordus

Aurélien Djament, Christine Vespa

We compute the stable homology of orthogonal and symplectic groups over a finite field k with coefficients coming from an usual endofunctor F of k-vector spaces (exterior, symmetri…

math.GT2008★ 1 cited

Some metrics on Teichmüller spaces of surfaces of infinite type

Lixin Liu, Athanase Papadopoulos

Unlike the case of surfaces of topologically finite type, there are several different Teichmüller spaces that are associated to a surface of topological infinite type. These Teichm…

math.DS2008★ 1 cited

On the distance between separatrices for the discretized pendulum equation

Hocine Sellama

We consider the discretization q(t+ε)+q(t-ε)-2q(t)=ε^{2}\sin\big(q(t)\big), a small parameter, of the pendulum equation ; in system form, we have the discr…

math.ST2008

Adaptive nonparametric estimation in heteroscedastic regression models. Part 1: Sharp non-asymptotic Oracle inequalities

Leonid Galtchouk, Serguey Pergamenshchikov

An adaptive nonparametric estimation procedure is constructed for the estimation problem of heteroscedastic regression when the noise variance depends on the unknown regression. A…

math.ST2008★ 1 cited

Adaptive sequential estimation for ergodic diffusion processes in quadratic metric. Part 2: Asymptotic efficiency

Leonid Galtchouk, Serguey Pergamenshchikov

Asymptotic efficiency is proved for the constructed in part 1 procedure, i.e. Pinsker's constant is found in the asymptotic lower bound for the minimax quadratic risk. It is shown…

math.ST2008★ 1 cited

Adaptive nonparametric estimation in heteroscedastic regression models. Part 2: Asymptotic efficiency

Leonid Galtchouk, Serguey Pergamenshchikov

The paper deals with asymptotic properties of the adaptive procedure proposed in the author paper (2007) for estimation of unknown nonparametric regression. We prove that this proc…

math.RT2008★ 2 cited

Invariant differential operators and an infinite dimensional Howe-type correspondence. Part I: Structure of the associated algebras of differential operators

Hubert Rubenthaler

If is a non degenerate quadratic form on ${\bb C}^n$, it is well known that the differential operators , , and , where is the Euler…