ばいちょ(売価調査)、価格比較とネットでのお買い物を楽に

内容説明 This book deals with such important subjects as variational methods， the continuity method， parabolic equations on fiber bundles， ideas concerning points of concentration， blowing-up technique， geometric and topological methods. It explores important geometric problems that are of interest to many mathematicians and scientists but have only recently been partially solved.