Using the United Nations COMTRADE database [1] we apply the reduced Google matrix (RE-GOMAX) algorithm to analyze the multiproduct world trade in years 2004-2016. Our approach allows to determine the trade balance sensitivity of a group of countries to a specific product price increase from a specific exporting country taking into account all direct and indirect trade pathways via all world countries exchanging 61 UN COMTRADE identified trade products. On the basis of this approach we present the influence of trade in petroleum and gas products from Russia, USA, Saudi Arabia and Norway determining the sensitivity of each EU country. We show that the REGOMAX approach provides a new and more detailed analysis of trade influence propagation comparing to the usual approach based on export and import flows.

We present Wikipedia Ranking of World Universities (WRWU) based on analysis of networks of 24 Wikipedia editions collected in May 2017. With PageRank and CheiRank algorithms we determine ranking of universities averaged over cultural views of these editions. The comparison with the Shanghai ranking gives overlap of 60% for top 100 universities showing that WRWU gives more significance to their historical development. We show that the new reduced Google matrix algorithm allows to determine interactions between leading universities on a scale of ten centuries. This approach also determines the influence of specific universities on world countries. We also compare different cultural views of Wikipedia editions on significance and influence of universities. PACS. 89.75.Fb Structures and organization in complex systems -89.75.Hc Networks and genealogical trees -89.20.Hh World Wide Web, Internet Paris-Sorbonne Pantheon-Sorbonne EPHE ENS Polytechnique USC UW-Madison Florida UT Austin NYU UPenn UCLA Cornell Michigan Chicago Princeton Berkeley MIT Stanford Yale Columbia HarvardHarvard Columbia Yale Stanford MIT Berkeley Princeton Chicago Michigan Cornell UCLA UPenn NYU UT Austin Florida UW-Madison USC Polytechnique ENS EPHE Paris-Sorbonne Pantheon-Sorbonne EPHE ENS Polytechnique USC UW-Madison Florida UT Austin NYU UPenn UCLA Cornell Paris-Sorbonne Pantheon-Sorbonne EPHE ENS Polytechnique USC UW-Madison Florida UT Austin NYU UPenn UCLA Cornell Harvard Columbia Yale Stanford MIT Berkeley Princeton Chicago Michigan Cornell UCLA UPenn NYU UT Austin Florida UW-Madison USC Polytechnique ENS EPHE