FIXP-membership via Convex Optimization: Games, Cakes, and Markets. - Aris Filos-Ratsikas; Kristoffer Arnsfelt Hansen; Kasper Høgh; Alexandros Hollender (FOCS, 2021)

Strong Approximate Consensus Halving and the Borsuk-Ulam Theorem. - Eleni Batziou; Kristoffer Arnsfelt Hansen; Kasper Høgh (ICALP, 2021)

PPAD-Membership for Problems with Exact Rational Solutions: A General Approach via Convex Optimization. - Aris Filos-Ratsikas; Kristoffer Arnsfelt Hansen; Kasper Høgh; Alexandros Hollender (STOC, 2024)

The frontier of intractability for EFX with two agents. - Paul W. Goldberg; Kasper Høgh; Alexandros Hollender (Theor. Comput. Sci., 2025)