We show that free-by-free groups satisfying a homological criterion, which we call excessive homology, are incoherent. This class is large in nature, including many examples of hyperbolic and non-hyperbolic groups. apply this criterion to finite index subgroups F 2 ?F n incoherence all such groups, other similar classes Furthermore, free-by-free, surface-by-surface, finitely generated-by-RAAG, ...

Anachrony in game stories causes incoherence, if the player’s actions cause a future that differs considerably from the one already presented. Such game story quirk, if not addressed by design, causes an occurrence of unexplained agency-related incoherence (UARI). Current game studies literature views the issue as problematic. To study the significance and meaning of UARI to players, both anach...

The present article concerns statistical concepts that are usually presented in the statistical classroom. Examples are presented in a way that simple applications of these concepts produce incoherent conclusions. The examples illustrate that: iid random variables are in fact strongly dependent; conditional probabilities may depend on how the conditioning arguments were learned; confidence inte...

We investigate quantum radiation reaction in laser-electron interactions across different energy and intensity regimes. Using a fully quantum approach which also accounts exactly for the effect of the strong laser pulse on the electron motion, we identify in particular a regime in which radiation reaction is dominated by quantum interference. We find signatures of quantum radiation reaction in ...

Information spreads across social and technological networks, but often the network structures are hidden and we only observe the traces left by the diffusion processes, called cascades. It is known that, under a popular continuous-time diffusion model, as long as the model parameters satisfy a natural incoherence condition, it is possible to recover the correct network structure with high prob...