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Publications by PINGZHI YUAN

An Upper Bound for the Number of Odd Multiperfect Numbers

Bulletin of the Australian Mathematical Society

English

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Improved Upper Bounds for Odd Multiperfect Numbers

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An Upper Bound on the Double Domination Number of Trees

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An Upper Bound on the Total Outer-Independent Domination Number of a Tree

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An Upper Bound to the Number of Conjugacy Classes of Non-Abelian Nilpotent Groups

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Explicit Upper Bound for the Average Number of Divisors of Irreducible Quadratic Polynomials

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On Odd Perfect Numbers

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