Sets with more sums than differences

Comparison of |A+A| with |A−A|: sum-dominant (MSTD) and difference-dominated sets, minimal MSTD and MPTQ sets, Chu's constructions, unions of progressions, and the single-set sum-difference exponent.

• Alternating sum- and difference-dominated sets
• Chu's constructions of sum-dominant sets
• Minimum size of a sum-dominant set
• Sum-difference exponent of a single set
• Unions of two progressions are not sum-dominant
• Sets with more products than quotients

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