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Residue classes containing an unexpected number of primes
Residue classes unexpected number of primes
2010/12/6
We fix a non-zero integer a and consider arithmetic progressions a mod q, with q varying over a given range. We show that for certain specific values of a, the arithmetic progressions a mod q contain,...
Unexpected systematic degeneracy in a system of two coupled Gaudin models with homogeneous couplings
Unexpected systematic degeneracy two coupled Gaudin models homogeneous couplings
2010/12/15
We report an unexpected systematic degeneracy between di erent multiplets in an inversion symmetric system of two coupled Gaudin models with homogeneous couplings, as occurring for example in the cont...