The charge form factor of the pion is calculated in lattice QCD. The non-perturbatively improved Sheikholeslami-Wohlert action is used together with the O(a) improved vector current. Other choices for the current are examined. The form factor is extracted for pion masses from 970 MeV down to 360 MeV and for momentum transfers Q2 ≤ 2 GeV. The mean square charge radius is extracted, compared to p...

Abstract. Let (X, Y ) be a bivariate elliptical random vector with associated random radius in the Gumbel maxdomain of attraction. In this paper we obtain a second order asymptotic expansion of the joint survival probability P{X > x, Y > y} for x, y large. Further, based on the asymptotic bounds we discuss some aspects of the statistical modelling of joint survival probabilities and the surviva...

Abstract. Newman, Schneider and Shalev defined the entropy of a graded associative algebra A as H(A) = lim sup n→∞ n √ an, where an is the vector space dimension of the n’th homogeneous component. When A is the homogeneous quotient of a finitely generated free associative algebra, they showed that H(A) ≤ √ a2. Using some results of Friedland on the maximal spectral radius of (0, 1)-matrices wit...

An offline handwritten signature classification approach is presented. The signature is parameterized using the radius values for contour points in the polar coordinates space. In order to determine the optimum outline for the classification task, nearest and faraway points were took into account. HMM and SVMLight model are analyzed in this work. Selecting faraway points offers better results, ...

Abstract The strange vector form factors are evaluated for Q2 = 0 and Q2 = 1 GeV in the framework of the SU(3) chiral quark-soliton model (or semi-bosonized SU(3) Nambu-Jona-Lasinio model). The rotational 1/Nc and ms corrections are taken into account up to linear order. The mean-square strange radius 〈r2〉Sachs s = −0.35 fm and the strange magnetic moment μs = −0.44 μN are obtained. The results...

This work presents a short introduction to the main ideas behind the design of specific kernel functions when used by machine learning algorithms, for example support vector machines, in the case that involved patterns are described by non-vectorial information. In particular the interval data case will be analysed as an illustrating example: explicit kernels based on the centre-radius diagram ...

Let m > 1 be an integer, Bm the set of all unit vectors of R pointing in the direction of a nonzero integer vector of the cube [−1, 1]. Denote by sm the radius of the largest ball contained in the convex hull of Bm. We determine the exact value of sm and obtain the asymptotic equality sm ∼ 2 √ log m . Primary subject classification: 52B11 Secondary subject classification: 52B12 §

Abstract— A new iris recognition and person identification technique is introduced. The method is based on tracing the Eye image boundary, using the MarrHildreth edge technique. The Eye's pupil boundary is identified, using the contour follower which is based on the chain coding method. The coordinates of the pupil's center is then recognized as the center of figure of the pupil boundary chaine...

2 Contents page 1 Introduction 3 1.1 Aim of the research 3 1.2 Background 3 2 Functional Aspects of the S.A. procedure 5 2.1 The sequential version 5 2.2 The vector version 6 2.3 The parallel version 6 3 Implementation Aspects 8 3.1 The vector version 8 3.1.1 Short description of vector processing 8 3.1.2 Description of the implementation 9 3.2 The parallel version 12 4 Time complexities 14 4.1...

It is found that the rotation of the Poynting vector of a Laguerre-Gaussian laser mode is proportional to the Gouy phase and for most cases of interest, rotates through less than one revolution in reaching the far field. For a p=O mode, we show the expression for the rotation is particularly simple and independent of 1. At the radius corresponding to maximum intensity, it yields a rotation of o...