For an integer k ≥ 1, the k-th interleaved adjoint of a digraph G is the digraph ιk(G) with vertex-set V (G) , and arcs ((u1, . . . , uk), (v1, . . . , vk)) such that (ui, vi) ∈ A(G) for i = 1, . . . , k and (vi, ui+1) ∈ A(G) for Partially supported by the Project LN00A056 of the Czech Ministery of Education and by CRM Barcelona, Spain. Supported by grants from NSERC and ARP

We consider a simple method to improve the adaptiveness and flexibility of bit-interleaved coded modulation (BICM) with different iterative decoding schemes for bandwidth efficient transmission. The basic idea is to apply different signal constellations and mappings within one code word. The combination of different signal constellations allows a fine adaptation of the data rate to the channel ...

A number of algebraic models of music that use the interleaving or shuue operator have been suggested in the literature. This paper shows how interleaving expressions are conducive to PAC identiication. PAC learning theory states that a \probably approximately correct" hypothesis that falls within a desired level of accuracy can be derived with a high probability from randomly selected training...

Interleaved echo-planar imaging (EPI) is an ultrafast imaging technique important for applications that require high time resolution or short total acquisition times. Unfortunately, EPI is prone to significant ghosting artifacts, resulting primarily from system time delays that cause data matrix misregistration. In this work, it is shown mathematically and experimentally that system time delays...