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2015 The unimodality of pure $O$-sequences of type two in four variables
Bernadette Boyle
Rocky Mountain J. Math. 45(6): 1781-1799 (2015). DOI: 10.1216/RMJ-2015-45-6-1781

Abstract

Since the 1970's, great interest has been taken in the study of pure $O$-sequences, which, due to Macaulay's theory of inverse systems, have a bijective correspondence to the Hilbert functions of Artinian level monomial algebras. Much progress has been made in classifying these according to their shape. Macaulay's theorem immediately gives us that all Artinian algebras in two variables have unimodal Hilbert functions. Furthermore, it has been shown that all Artinian level monomial algebras of type two in three variables have unimodal Hilbert functions. This paper will classify all Artinian level monomial algebras of type two in four variables into two classes of ideals, prove that they are strictly unimodal and show that one of the classes is licci.

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Bernadette Boyle. "The unimodality of pure $O$-sequences of type two in four variables." Rocky Mountain J. Math. 45 (6) 1781 - 1799, 2015. https://doi.org/10.1216/RMJ-2015-45-6-1781

Information

Published: 2015
First available in Project Euclid: 14 March 2016

zbMATH: 1332.05157
MathSciNet: MR3473154
Digital Object Identifier: 10.1216/RMJ-2015-45-6-1781

Subjects:
Primary: 05E40, 13C40, 13D40, 13E10, 13F20, 13H10

Rights: Copyright © 2015 Rocky Mountain Mathematics Consortium

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