Photo of Manuel D. Ortigueira
  • Portugal

Accepting PhD Students

  • 2138 Citations
  • 23 h-Index
1984 …2019

Research output per year

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Research Output at NOVA

The failure of certain fractional calculus operators in two physical models

Ortigueira, M. D., Martynyuk, V., Fedula, M. & Machado, J. T., 24 Apr 2019, In : Fractional Calculus and Applied Analysis. 22, 2, p. 255-270 16 p.

Research output: Contribution to journalReview article

11 Citations (Scopus)

The fractional quantum derivative and its integral representations

Ortigueira, M. D. & DEE Group Author, 1 Jan 2010, In : Communications In Nonlinear Science And Numerical Simulation. 15, 4, p. 956-962

Research output: Contribution to journalArticle

Open Access
15 Citations (Scopus)

The Fractional Quantum Derivative and the Fractional Linear Scale Invariant Systems

Ortigueira, M. D. & DEE Group Author, 1 Jan 2011, Fractional Calculus for Scientists and Engineers. Berlin: Springer-Verlag, Vol. 84. p. 123-144 (Lecture Notes in Electrical Engineering).

Research output: Chapter in Book/Report/Conference proceedingChapter

Open Access

The incremental ratio based causal Fractional Calculus

Ortigueira, M. D., 1 Apr 2012, In : International Journal of Bifurcation and Chaos. 22, 4, p. 9 pages

Research output: Contribution to journalArticle

Open Access
14 Citations (Scopus)

The incremental ratio based causal Fractional Calculus for analytic functions

Ortigueira, M. D. & DEE Group Author, 1 Jan 2010, IFAC-FDA. p. -

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Threshold choice for automatic spindle detection

Batista, A. M. G., Ortigueira, M. D. & DEE Group Author, 1 Jan 2012, Proceedings of the 19th International Conference on Systems, Signals and Image Processing (IWSSIP 2012). p. 197-200

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)
30 Citations (Scopus)
4 Citations (Scopus)

Two-sided discrete fractional derivatives and systems

Ortigueira, M. D. & DEE Group Author, 1 Jan 2012, AIP Conference Proceedings. p. 1416-1419

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
2 Citations (Scopus)

Variable order fractional systems

Ortigueira, M. D., Valério, D. & Machado, J. T., 15 Jun 2019, In : Communications In Nonlinear Science And Numerical Simulation. 71, p. 231-243 13 p.

Research output: Contribution to journalArticle

21 Citations (Scopus)

What is a fractional derivative?

Ortigueira, M. D. & Tenreiro Machado, J. A., Jul 2015, In : Journal of Computational Physics. 293, SI, p. 4-13 10 p.

Research output: Contribution to journalArticle

174 Citations (Scopus)