"Geometria algèbrica." . . "Algèbre locale." . . "Homotopia." . . "Kommutative Algebra." . . "Stellenalgebra." . . "Algebra komutativni kolobarji." . . "Graduierter Ring." . . "Lokale Algebra." . . . . "Fonction caractéristique." . . "Homotopie." . . "Filtres (Matemàtica)" . . "Geordende algebraïsche structuren." . . "Àlgebra local." . . "Kodaira-Spencer-Abbildung." . . "Matemàtica." . . "Àlgebra." . . "Singularities (Mathematics)" . . "Osobliwości (matematyka)." . . "Filtrierter Modul." . . "Omotopia - Teorie." . . "SpringerLink (Service en ligne)" . . "Fonctions caractéristiques." . . "Àlgebra homològica" . . "Àlgebra homològica." . "Geometria algebraiczna." . . "Hilbert, Schémas de." . . "Homotopy theory." . . "Singularités (Mathématiques)" . . "Singularités (mathématiques)" . "Singularités (mathématiques)." . "Singulariteiten." . . "Singolarità (Matematica)" . . "Springer-Verlag." . . "Algebra Conmutativa." . . . . . . . . . . . "Electronic books"@en . . . . . . . . . "Kodaira-Spencer maps in local algebra"@en . "Kodaira-Spencer maps in local algebra" . . . . . . . . . . . . . . . . . . "Llibres electrònics" . . . . . . . . "Kodaira Spencer maps in local algebra" . "Kodaira-Spencer Maps in Local Algebra" . . . . . . . . "Kopdaira-Spencer Maps in Local Algebra"@it . . . . . . . "The monograph contributes to Lech's inequality - a 30-year-old problem of commutative algebra, originating in the work of Serre and Nagata, that relates the Hilbert function of the total space of an algebraic or analytic deformation germ to the Hilbert function of the parameter space. A weakened version of Lech's inequality is proved using a construction that can be considered as a local analog of the Kodaira-Spencer map known from the deformation theory of compact complex manifolds. The methods are quite elementary, and will be of interest for researchers in deformation theory, local singularities and Hilbert functions."@en . . . . . . . . . . "Characteristic functions." . .