Erasure code

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Revision as of 21:26, 12 August 2013 by en>Ysangkok (Optimal erasure codes: zfec, parchive)
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Current algebra is a mathematical framework in quantum field theory where the fields form a Lie algebra under their commutation relations.

For instance, in a non-Abelian Yang–Mills symmetry, where ρ is the charge density,

[ρa(x),ρb(y)]=ifcabδ(xy)ρc(x)

where f are the structure constants of the Lie algebra. If space is a one dimensional circle, there may exist central extensions.

See also

References

  • Sam B. Treiman; Roman Jackiw; David J. Gross, Lectures on current algebra and its applications. Princeton Series in Physics. Princeton University Press, Princeton, N.J., 1972. x+362 pp.

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