block recursion,” IEEE Trans. Audio Electroacowt., vol. AU-18, DD. 169-176. June 1970. [3] Charles S. B’urrus, “Block implementation of digital filters,” ZEEE Truns. Circuit Theov, vol. CT-18, pp. 697-701, Nov. 1971. [4] -, “Block realization of digital filters,” IEEE Truns. Audio Electroacoust., vol. AU-20, pp. 230-235, Oct. 1972. [5] R. Gnanasekaran and Sanjit K. Mitra, “A note on block imple...

Massively parallel algorithms are presented for solving systems of fixed point equations, modeling state-dependent routing in large asymmetric circuit-switched networks. Our focus is on the Aggregated Least Busy Alternative (ALBA) routing policy of Mitra, Gibbens and Huang. On a 16384 processor MasPar parallel computer, about a minute is required to compute estimates of the call blocking probab...

Multivariate regular variation plays a role assessing tail risk in diverse applications such as finance, telecommunications, insurance and environmental science. The classical theory, being based on an asymptotic model, sometimes leads to inaccurate and useless estimates of probabilities of joint tail regions. This problem can be partly ameliorated by using hidden regular variation [Resnick, 20...

Oliver DeWolfe, Daniel Z. Freedman, Steven S. Gubser, Gary T. Horowitz, and Indrajit Mitra Institute for Theoretical Physics, UCSB, Santa Barbara, California 93106 Caltech-USC Center for Theoretical Physics, USC, Los Angeles, California 90089 Department of Mathematics and Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 Lauritsen Laboratory o...

NEUROSCIENCE Correction for “Lag threads organize the brain’s intrinsic activity,” by Anish Mitra, Abraham Z. Snyder, Tyler Blazey, and Marcus E. Raichle, which appeared in issue 17, April 28, 2015, of Proc Natl Acad Sci USA (112:E2235–E2244; first published March 30, 2015; 10.1073/pnas.1503960112). The authors note that Fig. 1 and its corresponding legend appeared incorrectly. The corrected fi...

Sanjit Mitra,* Sanjeev Dhurandhar, Tarun Souradeep, Albert Lazzarini,3,x Vuk Mandic,3,k Sukanta Bose,4,{ and Stefan Ballmer** Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune 411007, India Observatoire de la Côte d’Azur, BP 4229, 06304 Nice Cedex 4, France LIGO Laboratory, California Institute of Technology, MS 18-34, Pasadena, California 91125, USA Departme...

Conference (FLAIRS-19) was held 11–13 May 2006 at the Crowne Plaza Melbourne Oceanfront Hotel in Melbourne Beach, FL. The general cochairs were Philip Chan and Debasis Mitra, from the Florida Institute of Technology. The program cochairs were Geoff Sutcliffe, from the University of Miami, and Randy Goebel, from the University of Alberta. The special tracks chair was Barry O’Sullivan, from Unive...