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Preprint Number 2623
2623. Masato Fujita Definable 𝒞^r structures on definable topological groups in d-minimal structures E-mail: Submission date: 24 April 2024 Abstract: Definable topological groups whose topologies are affine have definable 𝒞^r structures in d-minimal expansions of ordered fields, where r is a positive integer. We prove this fact using a new notion called partition degree of a definable set. Basic properties of partition degree are also studied. Mathematics Subject Classification: Primary 03C64, Secondary 54H11 Keywords and phrases: |
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