3 search results - page 1 / 1 » Computing Fourier transforms and convolutions of Sn-1-invari... |
APPML
2010
13 years 4 months ago
2010
Let Sn denote the symmetric group on {1, . . . , n} and Sn-1 the stabilizer subgroup of n. We derive algorithms for computing Fourier transforms of left and right Sn-1-invariant s...
JCSS
2010
13 years 3 months ago
2010
Convolution y(t) = a(t − s) · x(s) ds is one of the main techniques in digital signal processing. A straightforward computation of the convolution y(t) requires O(n2) steps, wh...
STACS
1999
Springer
13 years 9 months ago
1999
Springer
Abstract. We consider dynamic evaluation of algebraic functions (matrix multiplication, determinant, convolution, Fourier transform, etc.) in the model of Reif and Tate; i.e., if f...