Totally positive elements with <i>m</i> partitions exist in almost all real quadratic fields

Abstract In this paper, we study partitions of totally positive integral elements $ \alpha $ in a real quadratic field $ K $ . We prove that for a fixed integer $ m \geq 1 $ , an element with $ m $ partition exists in almost all $ K $ . We also obtain an upper bound for the norm of $\alpha$ that can be represented as a sum of indecomposables in at most $m$ ways, completely characterize the $\alpha$ ’s represented in exactly $2$ ways, and subsequently apply this result to complete the search for fields containing an element with $ m $ partitions for $ 1 \leq m \leq 7 $ .

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Publication Details

Journal
Proceedings of the Edinburgh Mathematical Society
Published
2025-11-21
DOI
https://doi.org/10.1017/s0013091525101259
Primary Topic
Algebraic Geometry and Number Theory
Type
article
Field-Weighted Citation Impact
0.00
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article

Totally positive elements with m partitions exist in almost all real quadratic fields

Mikuláš Zindulka
Proceedings of the Edinburgh Mathematical Society
Algebraic Geometry and Number Theory
article

Totally positive elements with m partitions exist in almost all real quadratic fields

Mikuláš Zindulka
article en

Abstract

Abstract In this paper, we study partitions of totally positive integral elements $ \alpha $ in a real quadratic field $ K $ . We prove that for a fixed integer $ m \geq 1 $ , an element with $ m $ partition exists in almost all $ K $ . We also obtain an upper bound for the norm of $\alpha$ that can be represented as a sum of indecomposables in at most $m$ ways, completely characterize the $\alpha$ ’s represented in exactly $2$ ways, and subsequently apply this result to complete the search for fields containing an element with $ m $ partitions for $ 1 \leq m \leq 7 $ .

Proceedings of the Edinburgh Mathematical Society
Charles University (CZ)
Openalex Percentile: Top 59%
Algebraic Geometry and Number Theory
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