# Joshua Socolar

## Professor of Physics

### Overview

Prof. Socolar is interested in collective behavior in condensed matter and dynamical systems. His current research interests include:

- Limit-periodic structures, quasicrystals, packing problems, and tiling theory;
- Self-assembly and phases of designed colloidal particles;
- Organization and dynamics of complex networks;
- Topological elasticity of mechanical lattices.

### Fellowships, Supported Research, & Other Grants

Junior Fellow awarded by Harvard Society of Fellows (1987 to 1990)

Tighe, BP, Socolar, JES, Schaeffer, DG, Mitchener, WG, and Huber, ML. "Force distributions in a triangular lattice of rigid bars." *Phys Rev E Stat Nonlin Soft Matter Phys* 72.3 Pt 1 (September 2005): 031306-.
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Dealy, S, Kauffman, S, and Socolar, J. "Modeling pathways of differentiation in genetic regulatory networks with Boolean networks." *Complexity* 11.1 (2005): 52-60.
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Harrington, I, and Socolar, JES. "Design and robustness of delayed feedback controllers for discrete systems." *Phys. Rev. E* 69 (2004): 56207-. (Academic Article)

Hövel, P, and Socolar, JES. "Stability domains for time-delay feedback control with latency." *Phys Rev E Stat Nonlin Soft Matter Phys* 68.3 Pt 2 (September 2003): 036206-.
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Socolar, JES, and Kauffman, SA. "Scaling in ordered and critical random boolean networks." *Phys Rev Lett* 90.6 (February 14, 2003): 068702-.
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Socolar, JES. "Discrete models of force chain networks." *Discrete and Continuous Dynamical Systems - Series B* 3.4 (2003): 601-618.

Otto, M, Bouchaud, J-P, Claudin, P, and Socolar, JES. "Anisotropy in granular media: Classical elasticity and directed-force chain network." *Physical Review E - Statistical, Nonlinear, and Soft Matter Physics* 67.3 1 (2003): 031302/1-031302/24.

Hövel, P, and Socolar, JES. "Stability domains for time-delay feedback control with latency." *Physical Review E - Statistical, Nonlinear, and Soft Matter Physics* 68.3 2 (2003): 362061-362067.

Socolar, JES, Schaeffer, DG, and Claudin, P. "Erratum to: Directed force chain networks and stress response in static granular materials." *The European Physical Journal E* 8.4 (July 2002): 453-453.
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Socolar, JES, Schaeffer, DG, and Claudin, P. "Directed force chain networks and stress response in static granular materials." *European Physical Journal E* 7.4 (2002): 353-370.