Orthogonal variable spreading factor (OVSF) codes are employed in the third generation (3G) wideband code division multiple access (WCDMA) wireless system as channelization codes. Any two OVSF codes of different tree levels are orthogonal if and only if one of two codes is not mother code of the other. This results in a major drawback of OVSF codes, called blocking property: when an OVSF code i...

Let p be a prime number, k an algebraically closed field of characteristic p, G˜ finite group, and G normal subgroup having p-power index in G˜. Moreover let B block kG with cyclic defect group B˜ the unique kG˜ covering B. We study tilting complexes over show that is tilting-discrete algebra. we set all isomorphic to as partially ordered sets.

A market-based algorithm is presented which autonomously apportions complex tasks to multiple cooperating agents giving each agent the motivation of improving performance of the whole system. A speciic model, called \The Hayek Machine" is proposed and tested on a simulated Blocks World (BW) planning problem. Hayek learns to solve more complex BW problems than any previous learning algorithm. Gi...