/[GiNaC]/ginac/clifford.h
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revision 1.26 by cbauer, Tue Apr 24 13:22:09 2001 UTC revision 1.27 by cbauer, Wed Apr 25 16:41:13 2001 UTC
# Line 126  ex dirac_gamma(const ex & mu, unsigned c Line 126  ex dirac_gamma(const ex & mu, unsigned c
126  ex dirac_gamma5(unsigned char rl = 0);  ex dirac_gamma5(unsigned char rl = 0);
127    
128  /** Calculate the trace of an expression containing gamma objects with  /** Calculate the trace of an expression containing gamma objects with
129   *  a specified representation label.   *  a specified representation label. The computed trace is a linear
130     *  functional that is equal to the usual trace only in D = 4 dimensions.
131     *  In particular, the functional is non-cyclic in D != 4 dimensions when
132     *  gamma5 is involved.
133   *   *
134   *  @param rl Representation label */   *  @param rl Representation label */
135  ex dirac_trace(const ex & e, unsigned char rl = 0);  ex dirac_trace(const ex & e, unsigned char rl = 0);
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Christian Bauer">Christian Bauer
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