The multidimensional truncated moment problem: The moment cone
نویسندگان
چکیده
Let A = { a 1 , … m } ? N be measurable functions on space ( X ) . If ? is positive measure such that ? i d < ? for all then the sequence called truncated moment sequence. By Richter's Theorem each has k -atomic representing with ? The set S of sequences cone. aim this paper to analyze various structures main results concern facial structure (exposed faces, dimensions) and lower upper bounds Carathéodory number (that is, smallest atoms which suffices sequences) convex cone In case when ? R n C differential map regularity/singularity properties are analyzed. maximal mass problem considered some applications other problems sketched.
منابع مشابه
Truncated Moment Problem versus Moment Problem 3
It is shown that the truncated multidimensional moment problem is more general than the full multidimensional moment problem.
متن کاملThe Truncated Tracial Moment Problem
We present tracial analogs of the classical results of Curto and Fialkow on moment matrices. A sequence of real numbers indexed by words in non-commuting variables with values invariant under cyclic permutations of the indexes, is called a tracial sequence. We prove that such a sequence can be represented with tracial moments of matrices if its corresponding moment matrix is positive semidefini...
متن کاملSolution of the Truncated Parabolic Moment Problem
Given real numbers β ≡ β = {βij}i,j≥0,i+j≤2n, with γ00 > 0, the truncated parabolic moment problem for β entails finding necessary and sufficient conditions for the existence of a positive Borel measure μ, supported in the parabola p(x, y) = 0, such that βij = ∫ yx dμ (0 ≤ i+ j ≤ 2n). We prove that β admits a representing measure μ (as above) if and only if the asociated moment matrixM (n) (β) ...
متن کاملSolution of the Stieltjes Truncated Moment Problem
The conditions of solvability and description of all solutions of the truncated Stieltjes moment problem are obtained using as the starting point earlier results on the Hamburger truncated moment problem. An algebraic algorithm for the explicit solution of both problems is proposed.
متن کاملThe Truncated Moment Problem via Homogenization and Flat Extensions
A truncated moment sequence (tms) y in n variables and of degree d is a finite real sequence {yα} indexed by nonnegative integer vectors α := (α1, . . . , αn) with |α| := α1 + · · · + αn ≤ d. It admits a measure if there exists a positive Borel measure μ on Rn such that each yα is the α-th moment of μ. The truncated moment problem (TMP) studies conditions for a tms y to admit a measure. A homog...
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 Mathematical Analysis and Applications
سال: 2022
ISSN: ['0022-247X', '1096-0813']
DOI: https://doi.org/10.1016/j.jmaa.2022.126066