Double sequence spaces extend the classical notion of sequence spaces to encompass two-indexed structures, thereby providing a robust framework for the analysis of functions and operators in ...

Figure 1: Convergence hypotheses and genomic distribution of support. Figure 2: Relationship between strength of convergence signal and adaptive selection. To explore more fully the relationship ...

Journal of Applied Probability, Vol. 38, No. 2 (Jun., 2001), pp. 519-541 (23 pages) We study the convergence of certain matrix sequences that arise in quasi-birth-and-death (QBD) Markov chains and we ...

This is a preview. Log in through your library . Abstract We study very strong and very weak sequential convergence (notions which arise in infinite-dimensional holomorphy) and characterize, on the ...

Only some bats and toothed whales rely on sophisticated echolocation, in which they emit sonar pulses and process returning echoes, to detect and track down small prey. Now, two new studies show that ...