‎Here‎, ‎we investigate a conjecture posed by Amiri and Ariannejad claiming‎ ‎that if every maximal subfield of a division ring $D$ has trivial normalizer‎, ‎then $D$ is commutative‎. ‎Using Amitsur classification of‎ ‎finite subgroups of division rings‎, ‎it is essentially shown that if‎ ‎$D$ is finite dimensional over its center then it contains a maximal‎ ‎subfield with non-trivial normalize...

In this research we have developed experimental designs of the ultimatum game with supervised agents. This agents unbiased and biased thinking depending on case. We used Reinforcement Learning Bucket Brigade to program artficial agentes. simulations behavior comparison answer following questions: Does artificial intelligence reach a perfect subgame equilibrium in experiment? How would Artificia...

In this paper, Mirror sites enable client requests to be serviced by any of a number of servers, reducing load at individual servers and dispersing network load. Typically a client requests service from a single mirror site. We suggest a way for the client to access a file from multiple mirror sites in parallel to speed up the download. We have developed a technique that can deliver dramatic sp...

Automatic labelling and identification of cerebral structure, such as cortical sulci, are useful in neurology, surgery planning, etc... In this paper, a method to detect the valley of the cortical sulci is presented. The aim of the method is to achieve the sulci medial surface. The method applied on MRI data, is based on geometrical features (curvature) which doesn’ t require the accurate segme...

In this paper, a new PCA based method for video compression is introduced. This method extracts the features of video frames and process them adaptively based on required accuracy. This idea improves the quality of compression effectively. In this paper, we focused on the fact that video is a composition of sequential and correlated frames, so we can apply the PCA to these high correlated frame...

In this paper we study triangularization of collections of matrices whose entries come from a finite-dimensional division ring. First, we give a generalization of Guralnick's theorem to the case of finite-dimensional division rings and then we show that in this case the reduced trace function is a suitable alternative for trace function by presenting two triangularization results. The first one...

Most of the work in planning with incomplete informa tion takes a look before you leap perspective Ac tions must be guaranteed to have their intended e ects before they can be executed We argue that this ap proach is impossible to follow in many real world do mains The agent may not have enough information to ensure that an action will have a given e ect in advance of executing it This paper de...