Constructive Approximation

Aims & Scope

Constructive Approximation is an international mathematics journal dedicated to Approximations and Expansions and related research in computation, function theory, functional analysis, interpolation spaces and interpolation of operators, numerical analysis, space of functions, special functions, and applications.

View Aims & Scope

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Metrics & Ranking

Impact Factor

Year	Value
2025	1.2
2024	2.30

SJR (SCImago Journal Rank)

Year	Value
2024	1.871

Quartile

Year	Value
2024	Q1

h-index

Year	Value
2024	56

Journal Rank

Year	Value
2024	1630

Journal Citation Indicator

Year	Value
2024	345

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Abstracting & Indexing

Journal is indexed in leading academic databases, ensuring global visibility and accessibility of our peer-reviewed research.

• Scopus
• Google Scholar
• Web of Science

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Subjects & Keywords

Journal’s research areas, covering key disciplines and specialized sub-topics in Mathematics, designed to support cutting-edge academic discovery.

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Most Cited Articles

The Most Cited Articles section features the journal's most impactful research, based on citation counts. These articles have been referenced frequently by other researchers, indicating their significant contribution to their respective fields.

• A Simple Proof of the Restricted Isometry Property for Random Matrices

  Citation: 1618

  Authors: Richard, Mark, Ronald, Michael

• Interpolation of scattered data: Distance matrices and conditionally positive definite functions

  Citation: 1105

  Authors: Charles A.

• Adaptive greedy approximations

  Citation: 831

  Authors: G., S., M.

• Fractal functions and interpolation

  Citation: 738

  Authors: Michael F.

• On Early Stopping in Gradient Descent Learning

  Citation: 637

  Authors: Yuan, Lorenzo, Andrea

• Symmetric iterative interpolation processes

  Citation: 524

  Authors: Gilles, Serge

• Learning Theory Estimates via Integral Operators and Their Approximations

  Citation: 353

  Authors: Steve, Ding-Xuan

• Recurrent iterated function systems

  Citation: 222

  Authors: Michael F., John H., Douglas P.

• Simple Cubature Formulas with High Polynomial Exactness

  Citation: 206

  Authors: Erich, Klaus

• O(dlog N)-Quantics Approximation of N-d Tensors in High-Dimensional Numerical Modeling

  Citation: 186

  Authors: Boris N.

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