Eric Sharpe - Examples of homological projective duality in physics
Eric Sharpe - Examples of homological projective duality in physics
Eric Sharpe - Examples of homological projective duality in physics
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A more important subtlety is the fact that the p’s are<br />
coord<strong>in</strong>ates on the Z 2 gerbe P 1 [2,2],<br />
so over most <strong>of</strong> the P 1 <strong>of</strong> p vevs,<br />
there is a trivially-act<strong>in</strong>g Z 2 .<br />
Physics sees this as a double cover.<br />
Let’s quickly review how this works....