Various spaces

This page is my personal notes of various spaces. Part of the contents are from 中神 祥臣 著, 柳井 晴夫 著, 矩形行列の行列式, 2012, 丸善出版, and lecture notes of 関数解析（２０１９年度）. Therefore, there will be both English and Japanese in this page.

Inequalities いくつかの不等式