2 papers
math.AG2026
Non-general type surfaces in P4, an update
Hirotachi Abo, Kristian Ranestad, Frank-Olaf Schreyer
A general algebraic surface cannot be embedded in P4. Proving a conjecture by Hartshorne and Lichtenbaum, Ellingsrud and Peskine showed that there is a degree bound for smooth rati…
cs.GT2026
A vector bundle approach to Nash equilibria
Hirotachi Abo, Irem Portakal, Luca Sodomaco
We use vector bundles to study the locus of totally mixed Nash equilibria of an -player game in normal form, which we call the Nash equilibrium scheme. When the payoff tensor fo…