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.

All labels observed (4)

How this entity was disambiguated

Statements (46)

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 ⓘ

How these facts were elicited

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 ⓘ