@inbook{54769207ffa641b58c8f1dd5a7491f3d,
title = "Definitions",
abstract = "In this lecture, we remind several definitions related to metric spaces and fix some conventions.",
author = "Anton Petrunin",
note = "Publisher Copyright: {\textcopyright} The Author(s), under exclusive license to Springer Nature Switzerland AG 2023.",
year = "2023",
doi = "10.1007/978-3-031-39162-0_1",
language = "English (US)",
series = "SpringerBriefs in Mathematics",
publisher = "Springer Science and Business Media B.V.",
pages = "1--13",
booktitle = "SpringerBriefs in Mathematics",
}