Influences on electronic structure induced by platinum (Pt) deposited on monolayer graphene grown on SiC(0001) are investigated by photoelectron spectroscopy (PES), selected area low energy electron diffraction (l-LEED) and angle resolved photoelectron spectroscopy (ARPES) techniques at the MAX Laboratory. Stable monolayer graphene electronic properties are observed after Pt deposition and afte...

The known convergence proofs for multi-level methods assume the quasi-uniformity of the family of domain triangulations used. Such triangulations are not suitable for problems with singularities caused by re-entrant corners and abrupt changes in the boundary conditions. In this paper it is shown that families of properly refined grids yield the same convergence behavior of multi-level methods f...

Geometric aspects of the filtration on classical links by k-quasi-isotopy are discussed, including the effect of Whitehead doubling and relations with Smythe's n-splitting and Kobayashi's k-contractibility. One observation is: ω-quasi-isotopy is equivalent to PL isotopy for links in a homotopy 3-sphere (resp. contractible open 3-manifold) M if and only if M is homeomorphic to S 3 (resp. R 3). A...

Let 0 < p < 1 and 0 < 2 : We prove that for trigonometric polynomials sn of degree n, we have Z sn ( ) p " sin 2 sin 2 + n 2#p=2 d cn Z jsn ( )j d ; where c is independent of ; ; n; sn. The essential feature is the uniformity in and of the estimate. The result may be viewed as an Lp form of Videnskii’s inequalities.

We construct an example of a quasi-o-minimal group without the Exchange Property. A structure hM;<;:::i is called quasi-o-minimal 1] if in any structure elementarily equivalent to it the deenable subsets are exactly the Boolean combinations of 0-deenable subsets and intervals. A complete theory T is said to have the Exchange Property if, for any model M of T and for any X M and b; c 2 M, if b 2...

D epartement de math ematiques Universit e du Qu ebec a Montr eal 0 PRELIMINARIES 1 Abstract One important challenge in non{parametric density and regression{function estimation is spatially inhomogeneous smoothness. This is often modelled by Besov-and Triebel{type smoothness constraints. Donoho and Johnstone (1992), Delyon and Juditsky (1993) studied minimax rates of convergence for wavelet es...

Let X, B and Y be three Dirichlet, Bernoulli and beta independent random variables such that X ∼ D(a0, . . . , ad), such that Pr(B = (0, . . . , 0, 1, 0, . . . , 0)) = ai/a with a = Pd i=0 ai and such that Y ∼ β(1, a). Then, as was proved by J. Sethuraman [11], X ∼ X(1 − Y ) + BY. This gives the stationary distribution of a simple Markov chain on a tetrahedron. If k is an integer, the present p...