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This is a text from a math textbook. I just wonder how to type the "italic" symbols given in the text using Latex (I do not even know the names of the symbols...) For example how to type the symbol resembling H(appearing in the end of the first line)? Also, how to type the symbol right next to the word "Banach space" in the second line? How about the symbol resembling B(H) in the fourth line? I have no ideas..Could anyone tell me?

Keith
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    See \mathfrak and \mathcal as well as \mathscr of the mathrsfs package.. – Steven B. Segletes Feb 27 '18 at 10:57
  • You can see too this link: https://tex.stackexchange.com/questions/355320/looking-for-a-times-roman-math-font-that-closely-matches-selected-glyphs – Sebastiano Feb 27 '18 at 11:09
  • This is also related: https://tex.stackexchange.com/questions/58098/what-are-all-the-font-styles-i-can-use-in-math-mode – bmv Feb 27 '18 at 11:24

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This is good for B, T.

\documentclass{article}

\usepackage{euler,amsmath}

\begin{document}
    $\mathfrak{B}\mathfrak{T}\mathcal{H}$
\end{document}

Your H is from the MathTime Pro font, which is unfortunately not free. I would use \mathcal{H} instead.

bmv
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