- invertible ideal
- обратимый идеал
English-Russian scientific dictionary. 2008.
English-Russian scientific dictionary. 2008.
Invertible sheaf — In mathematics, an invertible sheaf is a coherent sheaf S on a ringed space X , for which there is an inverse T with respect to tensor product of O X modules. That is, we have : S otimes; T isomorphic to O X , which acts as identity element for… … Wikipedia
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Formal power series — In mathematics, formal power series are devices that make it possible to employ much of the analytical machinery of power series in settings that do not have natural notions of convergence. They are also useful, especially in combinatorics, for… … Wikipedia
Anillo unitario — Saltar a navegación, búsqueda Un anillo (no necesariamente conmutativo) es anillo unitario, o anillo unital, o anillo con unidad si existe un elemento en R, diferente del neutro para la suma, que es elemento neutro para la operación producto ( ·… … Wikipedia Español
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Smith normal form — The Smith normal form is a normal form that can be defined for any matrix (not necessarily square) with entries in a principal ideal domain (PID). The Smith normal form of a matrix is diagonal, and can be obtained from the original matrix by… … Wikipedia