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By Jichun Li, Yi-Tung Chen. Jichun Li ia a professor of mathematics at the University of Nevada, Las Vegas. Yi-Tung Chen is the co-director for the Center for Energy Research at the University of Nevada, Las Vegas.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.