Publications

Publications by Rui Gonçalves

2014

BHP universality in energy sources

Authors
Ferreira, H; Goncalves, R; Pinto, AA;

Publication
Springer Proceedings in Mathematics and Statistics

Abstract

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2011

Universality in the stock exchange markets.

Authors
Rui Gonçalves; Helena Ferreira; Alberto Pinto

Publication
Journal of Difference Equations and Applications - Journal of Difference Equations and Applications, vol.17, no.7, pp.1049-1063

Abstract

2008

Nonlinear Prediction in Riverflow - the Paiva River Case

Authors
Rui Gonçalves; Alberto Pinto; Francisco Calheiros

Publication
vol.75, pp.231-240

Abstract

2007

Comparison of methodologies in river flow prediciton. The Paiva river case

Authors
Rui Gonçalves; Alberto Pinto; Francisco Calheiros

Publication
vol.0, pp.381-390

Abstract

2009

Cycles and universality in sunspot numbers _fluctuations

Authors
Rui Gonçalves; Alberto Pinto; Nico Stollenwerk

Publication
apj - The Astrophysical Journal, vol.691, no.2, pp.1583-1586

Abstract
We analyze the famous Wolf's sunspot numbers. Surprisingly, we discovered that the distribution of the sunspot number fluctuations for both the ascending and descending phases is close to the universal nonparametric Bramwell-Holdsworth-Pinton (BHP) distribution. Since the BHP probability density function appears in several other physical phenomena, our result reveals a universal feature of the Wolf's sunspot numbers.

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2009

Cycles and universality in sunspot numbers fluctuations

Authors
Alberto Pinto; Rui Gonçalves; Nico Stollenwerk

Publication
vol.691, pp.1583-1586

Abstract

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