Area Minimizing Polyhedral Surfaces are Saddle. - Anton Petrunin (Am. Math. Mon., 2015)

Cyclic Projections in Hadamard Spaces. - Alexander Lytchak; Anton Petrunin (J. Optim. Theory Appl., 2022)

Moon in a Puddle and the Four-Vertex Theorem. - Anton Petrunin; Sergio Zamora Barrera; Ana Cristina Chávez Cáliz (Am. Math. Mon., 2022)

Six Proofs of the Fáry-Milnor Theorem. - Anton Petrunin; Stephan Stadler (Am. Math. Mon., 2024)