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Crystal energy functions via the charge in types A and C
Crystal energy functions Combinatorics
2011/9/16
Abstract: The Ram-Yip formula for Macdonald polynomials (at t=0) provides a statistic which we call charge. In types A and C it can be defined on tensor products of Kashiwara-Nakashima single column c...
Among all electromagnetic theories which (a) are derivable from a Lagrangian, (b) satisfy the
dominant energy condition, and (c) in the weak eld limit coincide with classical linear electromagnetics...
Charge conjugation from space-time inversion in QED: discrete and continuous groups
CPT groups space-time inversion Lorentz and Poincar´ e groups
2010/11/29
We show that the CPT groups of QED emerge naturally from the PT and P (or T )subgroups of the Lorentz group. We also find relationships between these discrete groups and continuous groups, like the co...