Indecomposable polynomials and their spectrum

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Authors
Bodin, Arnaud
Dèbes, Pierre
Najib, Salah
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Abstract
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We address some questions concerning indecomposable polynomials and their spectrum. How does the spectrum behave via reduction or specialization, or via a more general ring morphism? Are the indecomposability properties equivalent over a field and over its algebraic closure? How many polynomials are decomposable over a finite field?
Comment: 22 pages
Keywords
Mathematics - Algebraic Geometry, Mathematics - Commutative Algebra, Mathematics - Number Theory
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