翁志文演講的 powerpoint

• 2009/12/6, 中正大學, Pooling design and its construction, (2009 年數學學術研討會暨中華民國數學會年會, 2009/12/4-6 ).
• 2009/11/10 ,  台灣大學, D-bounded distance-regular graphs,  摘要,    (India-Taiwan Conference on Discrete Mathematics, 2009/11/9-12) 
• 2009/7/30, 南開大學, The Lit-Only Sigma Game on a Simple Graph  (2009年图论与组合学国际学术会议暨第五届海峡两岸图论与组合学学术会议 (2009年7月29日至八月一日)) 
• 2009/7/28. 北京師大, Nontrivial Pooling Designs (2009/7/24-28 順道訪問北京師大王愷順教授) (相片)
• 2009/2/10, 釜山, The flipping puzzle on a simple graph (Korea-Japan Workshop on Algebra and Combinatorics) 
• 2009/2/11-13, 浦項, The D-bounded Property on a Distance-regular Graph with a1=0, a2\not=0   (順道訪問 POSTECH)
• 2008/8/20, Oisterwijk, The flipping puzzle on a graph    (Geometric and Algebraic Combinatorics 4, Oisterwijk, The Netherlands, August 17-August 22, 2008
• 2007/6/27 台大 Regular Graphs with Four eigenvalues    (2007年圖論與組合學國際研討會暨第四屆海峽兩岸圖論與組合學研討會(2007年6月24至29日) )
• 2007/6/7 橫濱  Construct pooling designs from Hermitian forms graphs (相片)     (International Workshop on Combinatorics 2007, Keio University Yagami Campus (June 6-8), Kyoto University Yoshida Campus(June 10-14), Japan)
• 2006/12/10 台北 The q-analogue problems in different aspects   (2006 Mathmematical Meeting and Annual Meeting of the Mathematical Society of ROC)
• 2006/6/26 仙台 Triangle-free Distance-regular Graphs   (Algebraic Combinatorics, An International Conference in Honor of Eiichi Bannai's 60th Birthday)
• 2005/6/28 金華 More Examples of Pooling Spaces    (2005 年圖論與組合學國際學術會議季第三屆海峽兩岸圖論與組合學術會議, 金華, 中國 26-30, 2005)　
• 2004/7/21 釜山 Bidiagonal Triples and the quantum group U_q(sl_2)      (2004 Com2MaC Conference on Association Schemes, Codes and Designs, Pusan, Korea: July 19-23, 2004)

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