Katz’s Middle Convolution and Yokoyama’s Extending Operation
نویسنده
چکیده
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.
منابع مشابه
Katz’s middle convolution algorithm
This is an expository account of Katz’s middle convolution operation on local systems over P − {q1, . . . , qn}. We describe the Betti and de Rham versions, and point out that they give isomorphisms between different moduli spaces of local systems, following Völklein, Dettweiler-Reiter, Haraoka-Yokoyama. Kostov’s program for applying the Katz algorithm is to say that in the range where middle c...
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