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  ____       ___       _____   _    _     _____   
 |  _ \\    / _ \\    / ___// | || | ||  / ____|| 
 | |_| ||  | / \ ||   \___ \\ | || | || / //---`' 
 | .  //   | \_/ ||   /    // | \\_/ || \ \\___   
 |_|\_\\    \___//   /____//   \____//   \_____|| 
 `-` --`    `---`   `-----`     `---`     `----`

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Text this: Solid angles and Seifert hypersurfaces