Monday April 28, 2014
(Refreshments served at 10:45 am, HSCI-224)
Fig: Hyperbolic geometry is the hidden geometry of complex networks.
Graphs are useful abstractions of complex systems consisting of distinguishable elements (nodes) and their interactions (edges). Examples include the Internet, social networks, brain, and quantum networks representing the large-scale structure of space- time in our accelerating universe. The semantics of nodes and edges in graphs representing these completely different complex systems is completely different. However, the large-scale structure of these graphs is remarkably similar. This similarity has been recently explained as a consequence of the unexpected dynamical equivalence between large-scale growth dynamics of these graphs. This suggests that some unknown fundamental laws govern the dynamics of complex systems as different as the brain, the Internet, and the universe. I will review the basic concepts behind graphs and networks, describing the examples of real networks mentioned above. I will show that random geometric graphs in some non-Euclidean spaces accurately model the structure and dynamics of real networks, ranging from the Internet to our Universe.
See the colloquium schedule and its archive of previous talks
Colloquia are scheduled to start Mondays at 11:15am sharp in Peterson Hall 2, Room 110 (PH2-110, map). Refreshments are served from 10:45am to 11:05am in Room HSCI-224 (next to the department office) and everyone is invited to mingle with faculty and students!
We acknowledge with gratitude donations and support from the following present sponsors:
We also acknowledge with gratitude our past donors: The Forty-Niner Shops, Inc., The Northrop Grumman Foundation, Sandra Dana, Anonymous.
If you wish to support the Colloquium, please contact the colloquium coordinator or the department chair. Thank you!
|Date||Title||Speaker and Affiliation|
|January 27||Laser Eye Surgery: Applied Physics at its Finest||F. Raksi|
|February 3||Computational Approach to Undergraduate Physics Laboratory||Zoltan Papp, CSULB|
|February 10||Superconducting States in pseudo-Landau levels of Strained Graphene||Yafis Barlas, UCR|
|February 17||Heating up the Vacuum: a new Spin on QCD at RHIC||Kenneth R. Barish, UCR|
|February 24||My Favorite Elementary Particle: The Neutrino||James Hill, CSUDH|
|March 3||Space Situational Awareness: Providing advanced, innovative space surveillance technologies to the warfighter||Kenneth A. Abeloe
Integrity Applications Incorporated
|March 10||Nonlinear dynamics and phase transitions in heart cells||Y. Shiferaw, CUN|
|March 17||Quantum Transport and Correlated Phenomena in Bilayer and Trilayer Graphene Membranes||J. Lau, UCR|
|March 24||Effective Field Theory||A. Manohar, UCSD|
|April 7||Engineering Light Matter Interactions with Colloidal Systems||Regina Ragan, UCR|
|April 14||X-ray and Infrared Observational Studies of Star Formation Across the Milky Way||Matthew Povich, CSPUP|
|April 21||Planet Formation Revealed by High-Contrast Imaging||Michael Fitzgerald, UCLA|
|April 28||Large Graphs in Physics: From Statistical Mechanics of Networks to Quantum Cosmology||Dmitri Krioukov, USCD|
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