‎let $v$ be a vector space over a field $f$ of characteristic $pgeq 0$ and let‎ ‎$t$ be a regular subgroup of the affine group $agl(v)$‎. ‎in the finite dimensional case we show that‎, ‎if $t$ is abelian or $p>0$‎, ‎then $t$ is unipotent‎. ‎for $t$ abelian‎, ‎pushing forward some ideas used in [a‎. ‎caranti‎, ‎f‎. ‎dalla volta and m‎. ‎sala‎, ‎abelian regular subgroups of the affine group and r...

in this paper, we introduce and study the concept of $r$-fuzzy regular semi open (closed) sets in smooth topological spaces. by using $r$-fuzzy regular semi open (closed) sets, we define a new fuzzy closure operator namely $r$-fuzzy regular semi interior (closure) operator. also, we introduce fuzzy regular semi continuous and fuzzy regular semi irresolute mappings. moreover, we investigate the ...

Abstract It is often useful to be able deal with locales in terms of presentations their underlying frames, or equivalently, the geometric theories which they classify. Given a presentation for locale, its sublocales can obtained by simply appending additional relations, but case quotient more subtle. We provide simple procedures obtaining open quotients, proper quotients general triquotients f...

Solving constraints over floating-point numbers is a critical issue in numerous applications notably in program verification. Capabilities of filtering algorithms over the floating-point numbers have been so far limited to 2b-consistency and its derivatives. Though safe, such filtering techniques suffer from the well known pathological problems of local consistencies, e.g., inability to efficie...

In cartography, the geographic regions are usually represented using regular dense maps corresponding to heights values associated with the nodes of a regular grid of R2. The simplification of such maps is an absolute requirement in order to make storage, simulation and display possible. In this Note, we propose a new simplification method based on a measure of the local deformation of the surf...

The Ohio State University Radio Observatory recorded a strong, narrowband emission near the 21 cm hydrogen line in 1977 during a search for extraterrestrial intelligence, an event known as the ‘‘Wow ’’ signal. The few independent attempts to replicate the detection have failed. We have investigated the possibility of a periodic source—perhaps rotating and illuminating us once each cycle of many...

Providing a user with an effective image search engine has been a very active research area. A search by an object model is considered to be one of the most desirable and yet difficult tasks. An added difficulty is that objects can be photographed under different lighting conditions. We have developed a feature localization scheme that finds a set of locales in an image. We make use of a diagon...

Menée le plus souvent sous anesthésie générale, la chirurgie thyroïdienne peut aussi être pratiquée sous anesthésie régionale ou sous anesthésie locale. Notre objectif a été de rapporter l'expérience du Centre Hospitalier Universitaire d'Antananarivo sur l'anesthésie locale dans les thyroïdectomies. La drogue employée dans notre protocole anesthésique a été le fentanyl, administré en intraveine...

―Voice recognition has come a long way in the last few years,‖ as said plain and simple by Judge Thomas C. Smith, author of Dictating to your Computer (for judges and lawyers) (1). What was once a sceptical and highly inaccurate, almost useless device, voice recognition is now an incredibly helpful and advanced tool. Voice recognition is defined by www.techtarget.com as simply, ―the ability of ...