Need an example of finitely generated graded algebra such that each its graded subspace has infinite dimension. - MathOverflow
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2013-06-20T03:21:02Z
http://mathoverflow.net/feeds/question/41195
http://www.creativecommons.org/licenses/by-nc/2.5/rdf
http://mathoverflow.net/questions/41195/need-an-example-of-finitely-generated-graded-algebra-such-that-each-its-graded
Need an example of finitely generated graded algebra such that each its graded subspace has infinite dimension.
Melania
2010-10-05T18:57:07Z
2010-10-17T10:20:41Z
<p>More accurately, let $\displaystyle A=\sum_{i=0}^{\infty}A_i$ be a finitely generated graded algebra over say $\mathbb{Q}$ but $\dim A_i=\infty$ for each $i.$ Is it possible?</p>
http://mathoverflow.net/questions/41195/need-an-example-of-finitely-generated-graded-algebra-such-that-each-its-graded/41196#41196
Answer by André Henriques for Need an example of finitely generated graded algebra such that each its graded subspace has infinite dimension.
André Henriques
2010-10-05T19:05:33Z
2010-10-05T20:01:00Z
<p>$\mathbb Q[x,y]$ with $x$ in degree 0, and $y$ in degree 1.<br></p>
<p>If you want your generators to be in positive degrees, then what you're asking for is impossible.</p>