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 _    _      ___     _    _     _____     _____   
| || | ||   / _ \\  | || | ||  |  ___||  /  ___|| 
| || | ||  | / \ || | || | ||  | ||__   | // __   
| \\_/ ||  | \_/ || | \\_/ ||  | ||__   | \\_\ || 
 \____//    \___//   \____//   |_____||  \____//  
  `---`     `---`     `---`    `-----`    `---`

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Text this: Spectral properties of transfer operators