"Landau's problems" meaning in All languages combined

{
  "etymology_text": "Listed by Edmund Landau at the International Congress of Mathematicians in 1912.",
  "head_templates": [
    {
      "args": {
        "head": "Landau's problems"
      },
      "expansion": "Landau's problems",
      "name": "en-prop"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mathematics",
          "orig": "en:Mathematics",
          "parents": [
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Four basic unsolved problems about prime numbers: (i) is Goldbach's conjecture true?; (ii) is the twin prime conjecture true?; (iii) is Legendre's conjecture true?; (iv) are there infinitely many primes p such that p − 1 is a perfect square?"
      ],
      "id": "en-Landau's_problems-en-name-npOf2sg2",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "unsolved",
          "unsolved"
        ],
        [
          "problem",
          "problem"
        ],
        [
          "prime number",
          "prime number"
        ],
        [
          "Goldbach's conjecture",
          "Goldbach's conjecture"
        ],
        [
          "twin prime conjecture",
          "twin prime conjecture"
        ],
        [
          "Legendre's conjecture",
          "Legendre's conjecture"
        ],
        [
          "perfect square",
          "perfect square"
        ]
      ],
      "raw_glosses": [
        "(mathematics) Four basic unsolved problems about prime numbers: (i) is Goldbach's conjecture true?; (ii) is the twin prime conjecture true?; (iii) is Legendre's conjecture true?; (iv) are there infinitely many primes p such that p − 1 is a perfect square?"
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "wikipedia": [
        "Edmund Landau"
      ]
    }
  ],
  "word": "Landau's problems"
}

{
  "etymology_text": "Listed by Edmund Landau at the International Congress of Mathematicians in 1912.",
  "head_templates": [
    {
      "args": {
        "head": "Landau's problems"
      },
      "expansion": "Landau's problems",
      "name": "en-prop"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Mathematics"
      ],
      "glosses": [
        "Four basic unsolved problems about prime numbers: (i) is Goldbach's conjecture true?; (ii) is the twin prime conjecture true?; (iii) is Legendre's conjecture true?; (iv) are there infinitely many primes p such that p − 1 is a perfect square?"
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "unsolved",
          "unsolved"
        ],
        [
          "problem",
          "problem"
        ],
        [
          "prime number",
          "prime number"
        ],
        [
          "Goldbach's conjecture",
          "Goldbach's conjecture"
        ],
        [
          "twin prime conjecture",
          "twin prime conjecture"
        ],
        [
          "Legendre's conjecture",
          "Legendre's conjecture"
        ],
        [
          "perfect square",
          "perfect square"
        ]
      ],
      "raw_glosses": [
        "(mathematics) Four basic unsolved problems about prime numbers: (i) is Goldbach's conjecture true?; (ii) is the twin prime conjecture true?; (iii) is Legendre's conjecture true?; (iv) are there infinitely many primes p such that p − 1 is a perfect square?"
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "wikipedia": [
        "Edmund Landau"
      ]
    }
  ],
  "word": "Landau's problems"
}