block group

block group
группа смежных кварталов переписи (в США), включающая около 1000 человек

Англо-русский толковый словарь по геоинформатике. . 2015.

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  • Block (group theory) — In mathematics and group theory, a block system for the action of a group G on a set X is a partition of X that is G invariant. In terms of the associated equivalence relation on X , G invariance means that : x ≡ y implies gx ≡ gy for all g in G… …   Wikipedia

  • Census block group — A census block group is a geographical unit used by the United States Census Bureau which is between the census tract and the census block. It is the smallest geographical unit for which the bureau publishes sample data, i.e data which is only… …   Wikipedia

  • Block — may refer to: * A way of controlling train movement in railway signalling * Postage stamp block, an attached group of postage stampsObjects* A large concrete or stone brick * Block (sailing), a single or multiple pulley used on sailboats *… …   Wikipedia

  • block — n. interruption obstacle 1) (Am. football) to throw a block at smb. 2) a mental block (when it comes to word games, I have a mental block) 3) (med.) a heart; nerve; saddle block 4) a stumbling block street city square (AE) 5) a city block (the… …   Combinatory dictionary

  • Group 6 element — Group → 6 ↓ Period 4 24 Cr 5 …   Wikipedia

  • Group 10 element — Group 10 redirects here. For the rugby league competition, see Group 10 Rugby League. Group → 4 ↓ Period 4 …   Wikipedia

  • Group 7 element — Group → 7 ↓ Period 4 25 Mn 5 …   Wikipedia

  • Group 9 element — Group → 4 ↓ Period 4 27 Co 5 …   Wikipedia

  • Block B — (BlockBuster) Cyworld Dream Music Festival 23.07.11 Основная информация …   Википедия

  • Group 11 element — Group → 11 ↓ Period 4 29 Cu 5 …   Wikipedia

  • Group 3 element — || Group 3/ungrouped | 7 || **ActinidesThe Group 3 elements are chemical elements comprising the third vertical column of the periodic table. IUPAC has not recommended a specific format for the periodic table, so different conventions are… …   Wikipedia


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