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 Results for DC.creator="D." AND DC.creator="B." AND DC.creator="Litvin" in section 1.2.15 of volume E
Minimal isotypic supergroups and enantiomorphic supergroups of lowest index
Kopskyacute, V. and Litvin, D. B.  International Tables for Crystallography (2010). Vol. E, Section 1.2.15.4, p. 21 [ doi:10.1107/97809553602060000783 ]
Minimal isotypic supergroups and enantiomorphic supergroups of lowest index 1.2.15.4. Minimal isotypic supergroups and enantiomorphic supergroups of lowest index No data are listed for supergroups IIc, because they can be derived directly from the corresponding data of subgroups IIc. Example: G: Rod group (R29) The maximal isotypic subgroup of lowest index ...

Minimal non-isotypic non-enantiomorphic supergroups
Kopskyacute, V. and Litvin, D. B.  International Tables for Crystallography (2010). Vol. E, Section 1.2.15.3, p. 21 [ doi:10.1107/97809553602060000783 ]
... the basis of p21/m11, the basis vectors a and b must be interchanged. This changes pbma to pmba, which is ...

Maximal isotypic subgroups and enantiomorphic subgroups of lowest index
Kopskyacute, V. and Litvin, D. B.  International Tables for Crystallography (2010). Vol. E, Section 1.2.15.2, p. 21 [ doi:10.1107/97809553602060000783 ]
... as different conventional origins of S with respect to G. (b) One entry may correspond to two isotypic subgroups of equal ... with a' = 2a and two with the enlarged cell with b' = 2b. The generators of these subgroups are (3) G: Rod ...

Maximal subgroups and minimal supergroups
Kopskyacute, V. and Litvin, D. B.  International Tables for Crystallography (2010). Vol. E, Section 1.2.15, pp. 19-21 [ doi:10.1107/97809553602060000783 ]
... as different conventional origins of S with respect to G. (b) One entry may correspond to two isotypic subgroups of equal ... with a' = 2a and two with the enlarged cell with b' = 2b. The generators of these subgroups are (3) G: Rod ... the basis of p21/m11, the basis vectors a and b must be interchanged. This changes pbma to pmba, which ...

Blocks I and IIa
Kopskyacute, V. and Litvin, D. B.  International Tables for Crystallography (2010). Vol. E, Section 1.2.15.1.1, p. 20 [ doi:10.1107/97809553602060000783 ]
Blocks I and IIa 1.2.15.1.1. Blocks I and IIa In blocks I and IIa, every maximal subgroup S of a subperiodic group G is listed with the following information:The symbols have the following meaning: [i]: index of S in G. HMS1: short Hermann-Mauguin symbol of S, referred to the ...

Maximal non-isotypic non-enantiomorphic subgroups
Kopskyacute, V. and Litvin, D. B.  International Tables for Crystallography (2010). Vol. E, Section 1.2.15.1, pp. 20-21 [ doi:10.1107/97809553602060000783 ]
Maximal non-isotypic non-enantiomorphic subgroups 1.2.15.1. Maximal non-isotypic non-enantiomorphic subgroups The maximal non-isotypic non-enantiomorphic subgroups S of a subperiodic group G are divided into two types: I translationengleiche or t subgroups and II klassengleiche or k subgroups. Type II is subdivided again into two blocks: IIa ...

Block IIb
Kopskyacute, V. and Litvin, D. B.  International Tables for Crystallography (2010). Vol. E, Section 1.2.15.1.2, pp. 20-21 [ doi:10.1107/97809553602060000783 ]
Block IIb 1.2.15.1.2. Block IIb Whereas in blocks I and IIa every maximal subgroup S of G is listed, this is no longer the case for the entries of block IIb. The information given in this block is The symbols have the following meaning: [i]: index of S in G. HMS1 ...

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