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  2. List of scientific occupations - Wikipedia

    en.wikipedia.org/wiki/List_of_scientific_occupations

    This is a list of science and science-related occupations, which include various scientific occupations and careers based upon scientific research disciplines and explorers. A medical laboratory scientist at the National Institutes of Health preparing DNA samples

  3. Lists of occupations - Wikipedia

    en.wikipedia.org/wiki/Lists_of_occupations

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

  4. List of obsolete occupations - Wikipedia

    en.wikipedia.org/wiki/List_of_obsolete_occupations

    With the end of colonialism in the 20th century, the resident minister system came to an end, and was replaced by country-to-country diplomatic relations. Legal: 18: 20: Resin worker: Resin workers' work involved the extraction or working of resin, [186] which was needed as a raw material in the manufacture of pitch, tar and turpentine.

  5. Projective unitary group - Wikipedia

    en.wikipedia.org/wiki/Projective_unitary_group

    This space is not SU(n) (which only requires the determinant to be one), because SU(n) still contains elements e iθ I where e iθ is an n-th root of unity (since then det(e iθ I) = e iθn = 1). Abstractly, given a Hermitian space V , the group PU( V ) is the image of the unitary group U( V ) in the automorphism group of the projective space P ...

  6. Glossary of areas of mathematics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_areas_of...

    see discrete geometry Combinatorial group theory the theory of free groups and the presentation of a group. It is closely related to geometric group theory and is applied in geometric topology. Combinatorial mathematics an area primarily concerned with counting, both as a means and an end in obtaining results, and certain properties of finite ...

  7. List of words with the suffix -ology - Wikipedia

    en.wikipedia.org/wiki/List_of_words_with_the...

    The ology ending is a combination of the letter o plus logy in which the letter o is used as an interconsonantal letter which, for phonological reasons, precedes the morpheme suffix logy. [1] Logy is a suffix in the English language, used with words originally adapted from Ancient Greek ending in -λογία ( -logia ).

  8. Projective geometry - Wikipedia

    en.wikipedia.org/wiki/Projective_geometry

    The term "projective geometry" is used sometimes to indicate the generalised underlying abstract geometry, and sometimes to indicate a particular geometry of wide interest, such as the metric geometry of flat space which we analyse through the use of homogeneous coordinates, and in which Euclidean geometry may be embedded (hence its name ...

  9. Blowing up - Wikipedia

    en.wikipedia.org/wiki/Blowing_up

    Let Z be the origin in n-dimensional complex space, C n.That is, Z is the point where the n coordinate functions , …, simultaneously vanish. Let P n - 1 be (n - 1)-dimensional complex projective space with homogeneous coordinates , …,.