An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 5 Search : mapping
bijective mapping
  همتایش ِ دوشانی   
hamtâyeš-e došâni

Fr.: application bijective   

Same as → bijection.

bijective; → mapping.

conformal mapping
  همتایش ِ همدیس   
hamtâyeš-e hamdis

Fr.: application conforme   

A continuous mapping u = f(x) of a domain D in an n-dimensional Euclidean space (n≥ 2) into the n-dimensional Euclidean space is called conformal at a point x0D if it has the properties of constancy of dilation and preservation of angles at this point.

conformal; → mapping.

eclipse mapping
  نقشه‌برداری ِ گرفتی   
naqše bardâri-ye gerefti

Fr.: cartographie par éclipse   

A method for imaging the continuum light distributions of the → accretion disks of → cataclysmic variable stars. It relies on geometrical information contained in eclipse light curves. An alternative method is → Doppler tomography.

eclipse; → mapping.

mapping
  ۱) نقشه‌برداری؛ ۲) همتایش   
1) naqšé bardâri; 2) hamtâyeš

Fr.: 1) cartographie; 2) application   

1) The process of producing a map.
2) Math.: The operation of establishing → relations between two → sets in which one element of the second set is assigned to each element of the first set, as the expression y = x2. Same as → function.

Verbal noun from → map + → -ing.

1) Naqšé bardâri;, → map.
2) Hamtâyeš, verbal noun of hamtâyidan literally "folding together, relating units together," from ham- "together," → com-, + "fold, plait, ply; piece, part; single, a single unit of a pair," also a multiplicative suffix; Mid.Pers. tâg "piece, part," + infinitive suffix -idan.

surjective mapping
  همتایش ِ برشانی   
hamtâyeš-e baršâni

Fr.: application surjective   

Same as → surjection.

surjective; → mapping.