Уважаемые коллеги, доброго времени суток! представляем вам австралийское научное издание Australasian Journal of Combinatorics. Журнал имеет второй квартиль, издаётся в University of Queensland Press, его SJR за 2021 г. равен 0,593, импакт-фактор 0,70, печатный ISSN - 1034-4942, электронный - 2202-3518, предметная область Дискретная математика и комбинаторика. Вот так выглядит обложка:
Здесь два редактора -Майкл Альберт, контактные данные - malbert@cs.otago.ac.nz
и Элизабет Биллингтон - ejb@maths.uq.edu.au.
Австралийский журнал комбинаторики публикует высококачественные оригинальные исследовательские работы и обзорные статьи по всем разделам комбинаторики.
Пример статьи, название - Throttling for standard zero forcing on directed graphs. Заголовок (Abstract) - Zero forcing is an iterative process on graphs in which a color change rule is used to force vertices to become blue. The amount of time needed for all vertices in the graph to become blue is the propagation time. Throttling minimizes the sum of the number of initial blue vertices and the propagation time. In this paper, we study throttling in the context of directed graphs (digraphs). We characterize all simple digraphs with throttling number at most t and examine the change in the throttling number after flipping arcs and deleting vertices. We also introduce the orientation throttling interval (OTI) of an undirected graph, which is the range of throttling numbers achieved by the orientations of the graph. While the OTI is shown to vary among different graph families, some general bounds are obtained. Additionally, the maximum value of the OTI of a path is conjectured to be achieved by the orientation of a path whose arcs alternate in direction. The throttling number of this orientation is exactly determined in terms of the number of vertices.