"Morse theory" meaning in English

{
  "etymology_text": "Based on the work of Marston Morse.",
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      "expansion": "Morse theory (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "name": "Mathematics",
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      "examples": [
        {
          "text": "March 14, 2018, Roger Penrose writing in The Guardian, Mind over matter': Stephen Hawking – obituary\n[…] the spaces that are used in Einstein’s theory are really pseudo-Riemannian and the relevant Morse theory differs in subtle but important ways."
        }
      ],
      "glosses": [
        "The study of differentiable functions, where the domain of each is a manifold and the codomain is the real line."
      ],
      "id": "en-Morse_theory-en-noun-g1JtcObr",
      "links": [
        [
          "mathematics",
          "mathematics"
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        [
          "differentiable",
          "differentiable"
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          "function",
          "function"
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        [
          "manifold",
          "manifold"
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        [
          "codomain",
          "codomain"
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          "real line",
          "real line"
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      "raw_glosses": [
        "(mathematics) The study of differentiable functions, where the domain of each is a manifold and the codomain is the real line."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "wikipedia": [
        "Marston Morse",
        "Morse theory"
      ]
    }
  ],
  "word": "Morse theory"
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{
  "etymology_text": "Based on the work of Marston Morse.",
  "head_templates": [
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      "expansion": "Morse theory (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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      "examples": [
        {
          "text": "March 14, 2018, Roger Penrose writing in The Guardian, Mind over matter': Stephen Hawking – obituary\n[…] the spaces that are used in Einstein’s theory are really pseudo-Riemannian and the relevant Morse theory differs in subtle but important ways."
        }
      ],
      "glosses": [
        "The study of differentiable functions, where the domain of each is a manifold and the codomain is the real line."
      ],
      "links": [
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          "mathematics",
          "mathematics"
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          "differentiable",
          "differentiable"
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        "(mathematics) The study of differentiable functions, where the domain of each is a manifold and the codomain is the real line."
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      "tags": [
        "uncountable"
      ],
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        "mathematics",
        "sciences"
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  "word": "Morse theory"
}