Izvestiya. Mathematics, Tome 63 (1999) no. 1, pp. 73-102
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V. G. Zhuravlev. Embedding $p$-elementary lattices. Izvestiya. Mathematics, Tome 63 (1999) no. 1, pp. 73-102. http://geodesic.mathdoc.fr/item/IM2_1999_63_1_a3/
@article{IM2_1999_63_1_a3,
author = {V. G. Zhuravlev},
title = {Embedding $p$-elementary lattices},
journal = {Izvestiya. Mathematics},
pages = {73--102},
year = {1999},
volume = {63},
number = {1},
language = {en},
url = {http://geodesic.mathdoc.fr/item/IM2_1999_63_1_a3/}
}
TY - JOUR
AU - V. G. Zhuravlev
TI - Embedding $p$-elementary lattices
JO - Izvestiya. Mathematics
PY - 1999
SP - 73
EP - 102
VL - 63
IS - 1
UR - http://geodesic.mathdoc.fr/item/IM2_1999_63_1_a3/
LA - en
ID - IM2_1999_63_1_a3
ER -
%0 Journal Article
%A V. G. Zhuravlev
%T Embedding $p$-elementary lattices
%J Izvestiya. Mathematics
%D 1999
%P 73-102
%V 63
%N 1
%U http://geodesic.mathdoc.fr/item/IM2_1999_63_1_a3/
%G en
%F IM2_1999_63_1_a3
We investigate the ramification of embeddings of local lattices or quadratic forms over the ring $\mathbb Z_p$ of $p$-adic numbers. It is proved that every primitive embedding decomposes uniquely into an orthogonal sum of minimal indecomposable embeddings, and all such embeddings are constructed for $p$-elementary lattices. Ramification theory enables us to find the number of orbits of representations for forms and, in particular, for numbers by other quadratic forms over $\mathbb Z_p$, and to calculate the local multipliers in the weight formula for representations of a form by a genus of quadratic forms.