JungHwan Park

activity

20232026

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2 papers · 1 filter

math.GT2026

Lifting Milnor Invariants for 3-Component Links

Christopher W. Davis, JungHwan Park

We define a sequence of integer-valued invariants $γ^{k} (L)$ for a $3$ -component link $L$ . We prove that the resulting $γ$ -invariants are invariant under concordance, and more genera…

math.GT2026

Local Knots, $ν^{+}$ -Sharp Knots, and Rational Slice Genus

Junghwan Park, Zhongtao Wu, Jingling Yang

Hom and Wu introduced the knot concordance invariant $ν^{+}$ for knots in $S^{3}$ and proved that it gives a lower bound for the slice genus. Wu and Yang extended $ν^{+}$ to knots…

Lifting Milnor Invariants for 3-Component Links

Local Knots, ν+-Sharp Knots, and Rational Slice Genus

Local Knots, $ν^{+}$ -Sharp Knots, and Rational Slice Genus