173 citations · 973 across the 16 of their papers we have counts for
16 papers
Predictability of evolutionary trajectories in fitness landscapes
Alexander E. Lobkovsky, Yuri I. Wolf, Eugene V. Koonin
Experimental studies on enzyme evolution show that only a small fraction of all possible mutation trajectories are accessible to evolution. However, these experiments deal with ind…
Geometry of Valley Growth
Alexander P. Petroff, Olivier Devauchelle, Daniel M. Abrams +3
Although amphitheater-shaped valley heads can be cut by groundwater flows emerging from springs, recent geological evidence suggests that other processes may also produce similar f…
Erosion of a granular bed driven by laminar fluid flow
A. E. Lobkovsky, A. V. Orpe, R. Molloy +2
Motivated by examples of erosive incision of channels in sand, we investigate the motion of individual grains in a granular bed driven by a laminar fluid to give us new insights in…
Dynamics of channel incision in a granular bed driven by subsurface water flow
A. E. Lobkovsky, B. Smith, A. Kudrolli +1
We propose a dynamical model for the erosive growth of a channel in a granular medium driven by subsurface water flow. The model is inferred from experimental data acquired with a…
Low temperature dynamics of kinks on Ising interfaces
Alain Karma, Alexander E. Lobkovsky
The anisotropic motion of an interface driven by its intrinsic curvature or by an external field is investigated in the context of the kinetic Ising model in both two and three dim…
Unsteady Crack Motion and Branching in a Phase-Field Model of Brittle Fracture
Alain Karma, Alexander E. Lobkovsky
Crack propagation is studied numerically using a continuum phase-field approach to mode III brittle fracture. The results shed light on the physics that controls the speed of accel…