3 papers
math.AP2026
Molecular Seeds of Shear: An operator-level necessity result for first-order Chapman-Enskog deviatoric stress
Tristan Barkman
A new operator-level necessity result for the Chapman--Enskog expansion is established: in closed and unforced kinetic systems, the deviatoric stress arises if and…
q-bio.OT2026
A Control-Theoretic Model of Damage Accumulation and Boundedness in Biological Aging
Tristan Barkman
Aging interventions frequently improve function and healthspan without arresting long-term deterioration, indicating that existing frameworks do not fully specify the control condi…
physics.chem-ph2025
Scale-Dependent Velocity Fluctuations Generated by Molecular Collisions
Tristan Barkman
A discrete binomial random-walk description of molecular collisions is used to quantify the variance of coarse-grained velocity fields arising solely from collision-induced momentu…