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Showing 1 to 2 of 2 for “"linearly presented"”.
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Prime Saturations and Rees Algebras of Almost Linearly Presented Ideals
Let I be a height two perfect ideal in the polynomial ring k[x1, ..., xd] satisfying the Gd condition. Suppose I admits a homogeneous presentation matrix composed of linear columns except for one column of degree n. In this setting, we give two descriptions of the ideal A defining the Rees algebra …
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Rees algebras and iterated Jacobian duals
… The first setting is when <em>I</em> is almost linearly presented. Here we study the ideal defining the graph and the image of Ψ. Whenever possible, we also study invariants such as the Castelnuovo-Mumford regularity and the relation type of the graph of Ψ. In the second setting we impose no …