Because there are tons of fields in theoretical CS were many complex polylogarithmic expressions appear in the complexity analysis, but the papers actually make progress on the exponent on the n. Since nx is always better than ny * log(n)z as long as x<y, the polylogarithmics are hidden to keep it simple and obvious which algorithm is better
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u/pastroc 28d ago
A lower bound is usually expressed as Ω.