2 papers
math.ST2025
Causal Discovery for Linear Non-Gaussian Models with Disjoint Cycles
Mathias Drton, Marina Garrote-López, Niko Nikov +2
The paradigm of linear structural equation modeling readily allows one to incorporate causal feedback loops in the model specification. These appear as directed cycles in the commo…
math.PR2025
Phase transitions for fractional on the torus
Niko Nikov
We consider the fractional -measure on the -dimensional torus, with Gaussian free field having inverse covariance , and show a phase transition at . Mo…