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DCG
2010
84views more  DCG 2010»
15 years 4 months ago
Matroid Polytopes and their Volumes
We express the matroid polytope PM of a matroid M as a signed Minkowski sum of simplices, and obtain a formula for the volume of PM . This gives a combinatorial expression for the...
Federico Ardila, Carolina Benedetti, Jeffrey Doker
CSDA
2008
112views more  CSDA 2008»
15 years 4 months ago
Robustness of Fourier estimator of integrated volatility in the presence of microstructure noise
The finite sample properties of the Fourier estimator of integrated volatility under market microstructure noise are studied. Analytic expressions for the bias and the mean square...
M. E. Mancino, S. Sanfelici
EJC
2010
15 years 4 months ago
Descent polynomials for permutations with bounded drop size
Abstract. Motivated by juggling sequences and bubble sort, we examine permutations on the set {1, 2, . . . , n} with d descents and maximum drop size k. We give explicit formulas f...
Fan R. K. Chung, Anders Claesson, Mark Dukes, Rona...
AMC
2006
97views more  AMC 2006»
15 years 4 months ago
Inverse scattering in multilayer inverse problem in the presence of damping
An inverse problem arising from recovery of wavespeed for a one-dimensional problem in a medium with constant background wavespeed in the presence of damping is discussed. Our met...
F. D. Zaman, Khalid Masood, Z. Muhiameed
CORR
2007
Springer
57views Education» more  CORR 2007»
15 years 4 months ago
On Evaluating the Rate-Distortion Function of Sources with Feed-Forward and the Capacity of Channels with Feedback
— In this work, we study the problem of evaluating the performance limit of two communication problems that are closely related to each other- source coding with feed-forward and...
Ramji Venkataramanan, S. Sandeep Pradhan