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1. Could anyone please explain what is meant by trivial and non-trivial solutions?

2. LCAO:

Ψ = ∑c_{r}Φ_{r}

Ψ: Molecular orbitals

c: coefficients

Φ: Atomic orbitals

When we talk about basis sets, do we mean here the coefficients or the atomic functions?

Thanks a lot...

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# A Computational Physics

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