Finite structure for Friedman ideals of finite trees
نویسندگان
چکیده
منابع مشابه
Finite structure for Friedman ideals of finite trees
Article history: Received 4 September 2008 Available online xxxx
متن کاملFinite Generation of Symmetric Ideals
Let A be a commutative Noetherian ring, and let R = A[X] be the polynomial ring in an infinite collection X of indeterminates over A. Let SX be the group of permutations of X. The group SX acts on R in a natural way, and this in turn gives R the structure of a left module over the left group ring R[SX ]. We prove that all ideals of R invariant under the action of SX are finitely generated as R[...
متن کاملCurve Selection for Finite-type Ideals
Let a be an ideal of holomorphic functions vanishing only at the origin in C. The type of a is an invariant that measures the order of vanishing of the functions in a along holomorphic curves; this invariant is of importance in the study of subelliptic estimates and subelliptic multiplier ideal sheaves. Recently there has been some interest in the question of which curves actually compute the t...
متن کاملFinite Derivation Type for Large Ideals
In this paper we give a partial answer to the following question: does a large subsemigroup of a semigroup S with the finite combinatorial property finite derivation type (FDT ) also has the same property? A positive answer is given for large ideals. As a consequence of this statement we prove that, given a finitely presented Rees matrix semigroup M [S; I, J ;P ], the semigroup S has FDT if and...
متن کاملFinite Generation of Powers of Ideals
Suppose M is a maximal ideal of a commutative integral domain R and that some power Mn of M is finitely generated. We show that M is finitely generated in each of the following cases: (i) M is of height one, (ii) R is integrally closed and htM = 2, (iii) R = K[X; S̃] is a monoid domain over a field K, where S̃ = S ∪ {0} is a cancellative torsion-free monoid such that ⋂∞ m=1 mS = ∅, and M is the m...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Combinatorial Theory, Series B
سال: 2015
ISSN: 0095-8956
DOI: 10.1016/j.jctb.2014.11.007