collaborators

1 paper

math.CO2026

Small -kernels in digraphs

Irena Penev, Maya Stein, Ana Trujillo-Negrete

We address three questions of Spiro [Europ. J. Combin., 133:Paper No. 104307, 2026] on smallest -kernels in digraphs. All three questions are on the existence of small -kerne…