Sciweavers

2062 search results - page 40 / 413
» Derivatives of Logical Formulas
Sort
View
AIML
2008
15 years 8 days ago
On the intermediate logic of open subsets of metric spaces
In this paper we study the intermediate logic MLO(X) of open subsets of a metric space X. This logic is closely related to Medvedev's logic of finite problems ML. We prove sev...
Timofei Shatrov
CDC
2008
IEEE
117views Control Systems» more  CDC 2008»
15 years 5 months ago
A hopf-algebraic formula for compositions of noncommuting flows
Abstract— The Chen-Fliess series is known to be an exponential Lie series. Previously explicit formulas for the iterated integral coefficients were known only for its factorizat...
Eric Gehrig, Matthias Kawski
EJC
2008
14 years 11 months ago
On Postnikov's hook length formula for binary trees
We present a combinatorial proof of Postnikov's hook length formula for binary trees. c 2007 Elsevier Ltd. All rights reserved. Let [n] = {1, 2, . . . , n}. It is well known ...
William Y. C. Chen, Laura L. M. Yang
CPHYSICS
2010
195views more  CPHYSICS 2010»
14 years 11 months ago
Fast spherical Bessel transform via fast Fourier transform and recurrence formula
We propose a new method for the numerical evaluation of the spherical Bessel transform. A formula is derived for the transform by using an integral representation of the spherical...
Masayuki Toyoda, Taisuke Ozaki
JCT
2008
103views more  JCT 2008»
14 years 10 months ago
A bijective proof of Jackson's formula for the number of factorizations of a cycle
Factorizations of the cyclic permutation (1 2 . . . N) into two permutations with respectively n and m cycles, or, equivalently, unicellular bicolored maps with N edges and n whit...
Gilles Schaeffer, Ekaterina A. Vassilieva