講座主題： Integer flows and modular flows of signed graphs
專(zhuān)家姓名：羅榮
工作單位：美國(guó)西弗吉尼亞大學(xué)
講座時(shí)間：2018年6月18日下午2:30
講座地點(diǎn)：數(shù)學(xué)院大會(huì)議室
主辦單位：煙臺(tái)大學(xué)數(shù)學(xué)與信息科學(xué)學(xué)院
內(nèi)容摘要：
For ordinary graphs, Tutte proved that the integer flows and modular flows are equivalent. However this equivalence doesn't hold for signed graphs. In this talk, I will discuss how to convert modular flows into integer flows and present some new results on flows on signed graphs.
主講人介紹：
羅榮,，美國(guó)西弗吉尼亞大學(xué)（West Virginia University,，USA）數(shù)學(xué)系教授。主要研究圖的染色理論和流的理論,。發(fā)表60余篇論文多數(shù)在圖論頂尖雜志上,，如Journal of Cominatorial Theory Ser. B, Journal of Graph Theory, SIAM Journal on Discrete Math, European J. of Combinatorics.
