Nevanlinna–Pick interpolation

E506854

Nevanlinna–Pick interpolation is a classical problem in complex analysis and operator theory that seeks analytic functions, typically bounded by one in the unit disk, which match prescribed values at given points.

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Predicate Object
instanceOf interpolation problem
problem in complex analysis
problem in operator theory
applicationArea control theory
function theory on the unit disk
signal processing
system theory
classicalVersion scalar Nevanlinna–Pick interpolation
codomain unit disk
conditionOnNodes interpolation nodes are distinct
constraint |f(z)| ≤ 1 on the unit disk
dataType interpolation nodes in the unit disk
target values in the unit disk
domain unit disk
existenceCriterion positivity of the Pick matrix
field complex analysis
operator theory
generalization matrix-valued Nevanlinna–Pick interpolation
operator-valued Nevanlinna–Pick interpolation
goal characterize existence of bounded analytic interpolants
find analytic functions matching prescribed values at given points
hasVariant Nevanlinna–Pick interpolation in several variables
Nevanlinna–Pick interpolation on the upper half-plane
historicalPeriod early 20th century
involves Hilbert space operators
Nevanlinna–Pick kernels
positive definite kernels
namedAfter Georg Pick
Rolf Nevanlinna
relatedConcept Carathéodory interpolation
Hardy spaces
Herglotz functions
Nevanlinna class
Pick theorem
Schur functions
reproducing kernel Hilbert spaces
solutionMethod linear fractional transformations
operator model theory
realization theory
solutionSetProperty solution set is convex in the Schur class
typeOfConstraint interpolation with norm bound
typicalAssumption interpolation nodes lie strictly inside the unit disk
target values lie in the closed unit disk
typicalFunctionClass Schur class
bounded analytic functions on the unit disk
uses Pick matrix

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Referenced by (8)

Full triples — surface form annotated when it differs from this entity's canonical label.

Carathéodory–Fejér interpolation relatedTo Nevanlinna–Pick interpolation
Nevanlinna–Pick interpolation hasVariant Nevanlinna–Pick interpolation on the upper half-plane
linked to: Nevanlinna–Pick interpolation
Nevanlinna–Pick interpolation hasVariant Nevanlinna–Pick interpolation in several variables
linked to: Nevanlinna–Pick interpolation
Schur algorithm usedFor Nevanlinna–Pick interpolation
Schur algorithm relatedTo Nevanlinna–Pick interpolation problem
linked to: Nevanlinna–Pick interpolation
Blaschke product usedFor Nevanlinna–Pick interpolation
subject linked to: Blaschke products
Schwarz–Pick theorem relatedTo Nevanlinna–Pick interpolation
Corona theorem relatedTo Nevanlinna–Pick interpolation