What I do:I am a tenured scientific staff member at the Condensed Matter Theory Group, Department of Condensed Matter Physics and Materials Science, Brookhaven National Laboratory located on Long Island in New York. More formal info about my career can be found in my Curriculum Vitae which I am trying to keep up to date. My recent preprints on arxiv.org could be conveniently accessed by following this link. The members of my research group are listed here. Work address:Department of
Condensed Matter Physics and Materials Science, Brookhaven National Laboratory, Upton, New York,
11973 Home address:
40 Suffolk Down, Shoreham, New York, 11786 Photos:My recent Picasa albums can be found here. Some older photos are here.
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Research interests:
My recent preprints on arxiv.org are listed here. I am currently interested in topological and dynamical properties of complex networks. Such networks operate inside living cells (protein binding, transcriptional regulation, signaling, metabolism), wire up neurons in our brain, connect routers in the Internet, link webpages in the WWW, etc. In my studies of biomolecular processes I often use tools of theoretical statistical physics. However, the results belong to interdisciplinary fields of computational or systems biology and bioinformatics. In my recent paper with Iaroslav Ispolatov we studied the biological aspects of the mass-action equilibrium in protein binding networks. In particular, we quantified the propagation of large perturbations, as well as random noise and fluctuations in proteins' equilibrium concentrations. Together with Kim Sneppen we analyzed the topological degree-degree correlations in protein interaction and regulatory networks in yeast. Later on in 2002 we applied a similar technique to deduce correlation properties of the Internet. .I also work on problems related to search and ranking (think of Google) in various information networks (WWW, citations), prediction of tastes of customers based on their opinions on products (think of Amazon.com or Netflix), and the detection of communities in the Internet. Together with my students we have recently proposed a new algorithm (CiteRank) ranking scientific publications by their relevance to current research directions. If interested here you could look up the ranking of your own papers published in American Physical Society journals. Before focusing on complex networks I worked on a variety of topics including (in reverse chronological order) Econophysics, Low-dimensional magnetism, and Self-Organized Criticality. |
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This page was last updated on February 26, 2008 |
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