Address

Technische Universität Berlin
Fakultät II - Institut für Mathematik
MA 8-1
Straße des. 17. Juni 136
D-10623 Berlin
Germany

Phone: +49 30 314-24264
Room: MA820

Research Interests

• quasigroup theory
• loop theory
• group theory
• algebraic structure theory
• application of these to cryptography

Projects

• development of KANT/KASH at The Kant Group (see a usable webKASH instance)
• development of the KASH Documentation (see Preversion of the new KASH³ α)
• development and maintenance of KANT Algebraic Databases
  you can find the development snapshots of new Qao-System here
  The old database number fields is still active
• conceptional development of a unified CAS interface on algebraic contents
• development of the Emacs Interface to KASH
• Hunt for Monster Prime Numbers (see KANT/KASH -> Mersenne)

• development of SXEmacs (see SxemacsPage, see my Who's who page there)
• development of erbot (see EmacsWiki:ErBot, ErbotPage)
• development of MTorus (see EmacsWiki:MTorus, MtorusPage)
• development of eicq (the (S)XEmacs icq client, see EmacsWiki:EicqWishList)
• development of ase (Algebraic Structures for Emacsen)
• development of emeteo (Emacs Metar Frobnicator)
• development of CluE (Clustered Emacsen)
• development of Fresse! (Feature Rich Emacs Software Solution for Entertainment)
• development of Certs, a secret-keeper which can share its knowledge among emacs lisp applications
• development of XEtla, the Comprehensive XEmacs tla front-end
• development of GiANT (a graphical user interface for computer algebra systems)
• my github profile page (e.g. dateutils)

IRC

I'm hosting the Erbot IRC Bot on OPN and various other networks. The machine is generously sponsored by Jóhann Óskarsson (myrkraverk). You can find instances of Erbot on #xemacs, #sxemacs, and #eicq.

Erbot is the brother of the well-known fsbot and shares almost her entire knowledge.

• See the bot's page here.

Emacsen

#emacs, #gnus, #xemacs at OPN (irc://irc.freenode.net)

• Piespy social networks from #emacs
• Piespy social networks from #xemacs (channel statistics)
• Piespy social networks from #gnus
• pisg log stats from #eicq
• download the pisg module for erbot/erc logs

Contact

emails

freundt@math.tu-berlin.de
freundt@member.fsf.org
hroptatyr@gna.org
hroptatyr@hlidskjalf.de

irc

hroptatyr@OPN:#sxemacs
hroptatyr@OPN:#xemacs
hroptatyr@OPN:#emacs
hroptatyr@OPN:#kash

jabber

hroptatyr@amessage.de

icq

179382308(hroptatyr)

aim

hroptayggr@oscar

mobile

+49 1577 1984317

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Updated: 2006-05-11 11:48 (UTC)

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