Algebra › Maximum and minimum of expressions

Reciprocal sums

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Best approximation Cyclic fractions Cyclic products and signs Extrema of cubic expressions Extrema of quadratic forms Extrema of square-root expressions Extrema on a circle or conic Extrema under product constraints Integer maximisation Maximum of products Maximum sum of squares Minimax problems Minimum of sums of squares Minimum over sequences Quartic expressions and products Sums of pairwise products Symmetric expressions under constraints Two numbers with fixed sum or product