We consider a special class of dimension-six operators which are assumed to be induced by some new physics with typical scales of order Λ. This special class are the operators with two quarks which can mediate transitions between quark flavours. We show that under quite general assumptions the effect of these operators can be parametrised in terms of six parameters, leading to a modification of...

A bstract We perform a systematical study of the dimension-9 short-range 0 ??? decay operators at one-loop level. There are only six genuine topologies which generate eight diagrams, and recipe to identify possible realizations is sketched. Certain hypercharge assignments excluded by absence tree-level diagrams in model. The mediators each decomposition can Majorana neutrino masses discussed up...

In this paper, we propose some extensions of epistemic logic for reasoning about information fusion. The fusion operators considered in this paper include majority merging, arbitration, and general merging. Some modalities corresponding to these fusion operators are added to epistemic logics and the Kripke semantics of these extended logics are presented. While most existing approaches treat in...

This paper deals with the notion of connected operators These operators are becoming popular in image processing because they have the fundamental property of simplifying the signal while preserving the contour information In a rst step we recall the basic notions involved in binary and gray level connected operators Then we show how one can extend and generalize these operators We focus on two...

In this note, we show that the operator theoretic concept of Kolmogorov numbers and the number of degrees of freedom at level ǫ of a communication channel are closely related. Linear communication channels may be modeled using linear compact operators on Banach or Hilbert spaces and the number of degrees of freedom of such channels is defined to be the number of linearly independent signals tha...

The effects of human age, type of computer, and noise on computer operators' performance of a data entry task were investigated. Twenty male subjects aged 10-55 were assigned into 4 age groups each consisting of 5 persons. They performed the task for 15 min on desktop and laptop computers in a sitting posture under varying levels of noise. The mean number of characters entered per minute (MNCEP...

Genetic regulation is often viewed as a complex system whose properties emerge from the interaction of regulatory genes. One major paradigm for studying the complex dynamics of gene regulation uses directed graphs to explore structure, behaviour and evolvability. Mutation operators used in such studies typically involve the insertion and deletion of nodes, and the insertion, deletion and rewiri...

In this paper we consider the optimal design of English auctions with discrete bid levels. Such auctions are widely used in online Internet settings and our aim is to automate their configuration in order that they generate the maximum revenue for the auctioneer. Specifically, we address two complimentary problems: (i) that of determining the optimal reserve price and bid increment in these auc...