Media type: E-Article Title: Test sets for equality of terms in the additive structure of ordinals augmented with right multiplication by $$\omega $$ Contributor: Choffrut, Christian; Grigorieff, Serge imprint: Springer Science and Business Media LLC, 2020 Published in: Algebra universalis Language: English DOI: 10.1007/s00012-020-00671-9 ISSN: 0002-5240; 1420-8911 Keywords: Algebra and Number Theory Origination: Footnote: