Representation type of local and two-vertex bocses |
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Authors: | XueYing Zhang YingBo Zhang ShuangMei Zhao |
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Institution: | (1) School of Mathematical Sciences, Beijing Normal University, Beijing, 100875, China |
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Abstract: | Let k be an algebraically closed field. It has been proved by Zhang and Xu that if a bocs is of tame representation type, then
the degree of the differential of the first solid arrow must be less than or equal to 3. We will prove in the present paper
that: The bocs is still wild when the degree of the differential of the first arrow is equal to 3. Especially, the bocs with
only one solid arrow is of tame type if and only if the degree of the differential of the arrow is less than or equal to 2.
Moreover, we classify in this case the growth problems of the representation category of the bocs and layout the sufficient
and necessary conditions when the bocs is of finite representation type, tame domestic and tame exponential growth respectively.
This work was supported by National Natural Science Foundation of China (Grant No. 10731070) |
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Keywords: | bocs reduction tame representation type wild representation type domestic |
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