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This is the first time I post a question on MO, so I'm shy a liite bit. Can you give a "non-trivial" example of a finite dimensional hereditary algebra which is quotient of an infinite dimensional algebra ? By "non-trivial" I mean not by killing loops in the path algebra of some quiver, for example $k[X_1] \times\ldots \times k[X_n]/((X_1)\times\ldots\times (X_n))$.

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up vote 1 down vote accepted

If you use generators and relations, then any algebra is a quotient of an infinite-dimensional algebra, i.e., a quotient of the free associative algebra corresponding to the generators you pick.

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You're right. Thanks for the answer ! – user6565 Jun 5 '10 at 8:16

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