fraeon
Films
BrowseTop 250
Series
TV ShowsAnimeTop 250 TVTop 100 Anime
Games
BrowseTop 100
Books
BooksMangaTop 125 BooksTop 100 Manga
For youTrendingTier ListsThe ArchiveLeaderboard
Log inSign up free
fraeon

Everything you watch, play and read — tracked, rated and remembered in one library.

Explore

  • Films
  • TV
  • Anime
  • Games
  • Books
  • Manga

Discover

  • Trending
  • Leaderboard
  • Find people
  • Lists
  • Tier lists

Company

  • Tour
  • About
  • Community guidelines
  • Privacy
  • Terms
  • Contact

© 2026 fraeon. All rights reserved. ·

Metadata from TMDB, RAWG, Jikan & Open Library. This product uses the TMDB API but is not endorsed or certified by TMDB.

Questions or ideas? mehmet@avortas.com

HomeFeedProfile

Books · Search

Books by Udo Hebisch

Semirings

Algebra · Semirings (Mathematics)

Semirings

Udo Hebisch

1998

Halbringe

Halbringe

Udo Hebisch

2012

Halbringe

Halbring

Halbringe

Udo Hebisch

1993