Infinite charge algebra of gravitational instantons

Jens Hoppe, Q. Han Park

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Using a formalism of minitwistors, we derive infinitely many conserved charges for the sl(∞)-Toda equation which accounts for gravitational instantons with a rotational Killing symmetry. These charges are shown to form an infinite dimensional algebra through the Poisson bracket which is isomorphic to two dimensional area preserving diffeomorphism with central extentions.

Original languageEnglish
Pages (from-to)333-337
Number of pages5
JournalPhysics Letters B
Issue number4
Publication statusPublished - 1994 Feb 3
Externally publishedYes

Bibliographical note

Funding Information:
We would like to thank the DeutscheF orschungsgemeinsch(aJ.fHt .), the Korean Sciencea nd Engineering Foundation( J.H. and Q.P.) and the Program of Basic ScienceR esearchM, inistryof Education (Q.P.), for financials upport.

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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