Galería en tributo al pintor costarricense Rafa Fernández (1935-2018)

Correction to Bratt et al. (2018)

Reports an error in "Perceived age discrimination across age in Europe: From an ageing society to a society for all ages" by Christopher Bratt, Dominic Abrams, Hannah J. Swift, Christin-Melanie Vauclair and Sibila Marques (Developmental Psychology, 2018[Jan], Vol 54[1], 167-180). In the article, the copyright license has been changed to the Creative Commons CC-BY Attribution License. The online...

Sur les maladies contagieuses des Animaux domestiques, observées en Iran de 1930 à 1935 par Louis

S. Fernández-Merchant †

Even the most superficial glance at the vast majority of crossing-minimal geometric drawings of Kn reveals two hard-to-miss features. First, all such drawings appear to be 3-fold symmetric (or simply 3-symmetric) . And second, they all are 3-decomposable, that is, there is a triangle T enclosing the drawing, and a balanced partition A,B,C of the underlying set of points P , such that the orthog...

CombinaTexas 2018 February 10 – 11 , 2018

In this talk we give combinatorial proofs of q-Stirling identities using restricted growth words. This includes a poset theoretic proof of Carlitz’s identity, a new proof of the q-Frobenius identity of Garsia and Remmel and of Ehrenborg’s Hankel q-Stirling determinantal identity. We also develop a two parameter generalization to unify identities of Mercier and include a symmetric function versi...

Nominal Rewriting ? Maribel Fernández and Murdoch

Nominal rewriting is based on the observation that if we add support for alphaequivalence to first-order syntax using the nominal-set approach, then systems with binding, including higher-order reduction schemes such as lambda-calculus betareduction, can be smoothly represented. Nominal rewriting maintains a strict distinction between variables of the objectlanguage (atoms) and of the meta-lang...