@Article{Oshima2015,
author = "Oshima, Toshio",
title = "Katz's middle convolution and Yokoyama's extending operation",
journal = "Opuscula Math.",
year = "2015",
volume = "35",
number = "5",
pages = "665--688",
doi = "http://dx.doi.org/10.7494/OpMath.2015.35.5.665",
url = "http://dx.doi.org/10.7494/OpMath.2015.35.5.665",
abstract = "We give a concrete relation between Katz's middle convolution and Yokoyama's extension and show the equivalence of both algorithms using these operations for the reduction of Fuchsian systems on the Riemann sphere.",
keywords = "Fuchsian systems, middle convolution",
issn = "1232-9274"
}