Page 129 - Textos de Matemática Vol. 39

PARTIAL SPECTRA OF HERMITIAN SUMS 119 If γ = (γ1, γ2), there is only additional condition:
γ1 +2γ2 ≥ α1 +α2 +α3 +β1 +β2 +β3.
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x+2y=24
If γ = (γ2, γ3), the additional condition is
2γ2 +γ3 ≤ α1 +α2 +α3 +β1 +β2 +β3.
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2x+y=24
These are particular instances of the case s = n − 1, to which we dedicate the next section.