2 papers
math.DG2022
Variational problems for integral invariants of the second fundamental form of a map between pseudo-Riemannian manifolds
Rika Akiyama, Takashi Sakai, Yuichiro Sato
We study variational problems for integral invariants, which are defined as integrations of invariant functions of the second fundamental form, of a smooth map between pseudo-Riema…
math.HO2017
Maximum genus of the Jenga like configurations
Rika Akiyama, Nozomi Abe, Hajime Fujita +4
We treat the boundary of the union of blocks in the Jenga game as a surface with a polyhedral structure and consider its genus. We generalize the game and determine the maximum gen…