Involutions of the second kind on finitary incidence algebras

Autor: Fornaroli, Érica Zancanella

Let $K$ be a field and $X$ a connected partially ordered set. In the first part of this paper, we show that the finitary incidence algebra $FI(X,K)$ of $X$ over $K$ has an involution of the second kind if and only if $X$ has an involution and $K$ has

Externí odkaz: http://arxiv.org/abs/2306.12512

Time series of freshwater macroinvertebrate abundances and site characteristics of European streams and rivers

Autor: Ellen A. R. Welti, Diana E. Bowler, James S. Sinclair, Florian Altermatt, Mario Álvarez-Cabria, Giuseppe Amatulli, David G. Angeler, Gaït Archambaud, Iñaki Arrate Jorrín, Thomas Aspin, Iker Azpiroz, Nathan Jay Baker, Iñaki Bañares, José Barquín Ortiz, Christian L. Bodin, Luca Bonacina, Núria Bonada, Roberta Bottarin, Miguel Cañedo-Argüelles, Zoltán Csabai, Thibault Datry, Elvira de Eyto, Alain Dohet, Sami Domisch, Gerald Dörflinger, Emma Drohan, Knut A. Eikland, Judy England, Tor E. Eriksen, Vesela Evtimova, Maria J. Feio, Martial Ferréol, Mathieu Floury, Maxence Forcellini, Marie Anne Eurie Forio, Riccardo Fornaroli, Nikolai Friberg, Jean-François Fruget, Jaime R. Garcia Marquez, Galia Georgieva, Peter Goethals, Manuel A. S. Graça, Andy House, Kaisa-Leena Huttunen, Thomas Correll Jensen, Richard K. Johnson, J. Iwan Jones, Jens Kiesel, Aitor Larrañaga, Patrick Leitner, Lionel L’Hoste, Marie-Hélène Lizée, Armin W. Lorenz, Anthony Maire, Jesús Alberto Manzanos Arnaiz, Brendan Mckie, Andrés Millán, Timo Muotka, John F. Murphy, Davis Ozolins, Riku Paavola, Petr Paril, Francisco Jesús Peñas Silva, Marek Polasek, Jes Rasmussen, Manu Rubio, David Sánchez Fernández, Leonard Sandin, Ralf B. Schäfer, Astrid Schmidt-Kloiber, Alberto Scotti, Longzhu Q. Shen, Agnija Skuja, Stefan Stoll, Michal Straka, Rachel Stubbington, Henn Timm, Violeta G. Tyufekchieva, Iakovos Tziortzis, Yordan Uzunov, Gea H. van der Lee, Rudy Vannevel, Emilia Varadinova, Gábor Várbíró, Gaute Velle, Piet F. M. Verdonschot, Ralf C. M. Verdonschot, Yanka Vidinova, Peter Wiberg-Larsen, Peter Haase

Publikováno v: Scientific Data, Vol 11, Iss 1, Pp 1-8 (2024)

Abstract Freshwater macroinvertebrates are a diverse group and play key ecological roles, including accelerating nutrient cycling, filtering water, controlling primary producers, and providing food for predators. Their differences in tolerances and s

Externí odkaz: https://doaj.org/article/96318d810a1945acb67bc44d68964ad4

Commutativity preservers of incidence algebras

Autor: Fornaroli, Érica Z., Khrypchenko, Mykola, Santulo Jr, Ednei A.

Let $I(X,K)$ be the incidence algebra of a finite connected poset $X$ over a field $K$ and $D(X,K)$ its subalgebra consisting of diagonal elements. We describe the bijective linear maps $\varphi:I(X,K)\to I(X,K)$ that strongly preserve the commutativ

Externí odkaz: http://arxiv.org/abs/2207.10713

Proper Lie automorphisms of incidence algebras

Autor: Fornaroli, Érica Z., Khrypchenko, Mykola, Santulo Jr, Ednei A.

Let $X$ be a finite connected poset and $K$ a field. We study the question, when all Lie automorphisms of the incidence algebra $I(X,K)$ are proper. Without any restriction on the length of $X$ we find only a sufficient condition involving certain eq

Externí odkaz: http://arxiv.org/abs/2108.03765

Lie automorphisms of incidence algebras

Autor: Fornaroli, Érica Z., Khrypchenko, Mykola, Santulo Jr, Ednei A.

Let $X$ be a finite connected poset and $K$ a field. We give a full description of the Lie automorphisms of the incidence algebra $I(X,K)$. In particular, we show that they are in general not proper.
Comment: Minor changes. Accepted for publicat

Externí odkaz: http://arxiv.org/abs/2012.06661