"Chebyshev space" meaning in English

{
  "etymology_text": "Named after Pafnuty Chebyshev.",
  "forms": [
    {
      "form": "Chebyshev spaces",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Chebyshev space (plural Chebyshev spaces)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Synonym of Haar space"
      ],
      "id": "en-Chebyshev_space-en-noun-gQI7kRfQ",
      "links": [
        [
          "Haar space",
          "Haar space#English"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "Haar space"
        }
      ]
    }
  ],
  "word": "Chebyshev space"
}

{
  "etymology_text": "Named after Pafnuty Chebyshev.",
  "forms": [
    {
      "form": "Chebyshev spaces",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Chebyshev space (plural Chebyshev spaces)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys"
      ],
      "glosses": [
        "Synonym of Haar space"
      ],
      "links": [
        [
          "Haar space",
          "Haar space#English"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "Haar space"
        }
      ]
    }
  ],
  "word": "Chebyshev space"
}