Results 21 to 30 of about 538 (171)

Multiple phases and meromorphic deformations of unitary matrix models

open access: yesNuclear Physics B, 2022
We study a unitary matrix model with Gross–Witten–Wadia weight function and determinant insertions. After some exact evaluations, we characterize the intricate phase diagram. There are five possible phases: an ungapped phase, two different one-cut gapped
Leonardo Santilli, Miguel Tierz
doaj   +1 more source

Food Waste: The Good, the Bad, and (Maybe) the Ugly

open access: yesStandards, 2023
Approximately one-third of the food produced globally—close to 1 billion tons—ends up as waste, and, at the same time, more than 800 million people are undernourished, which makes Sustainable Development Goal 12.3, to halve food waste by 2020, rather ...
Lars Carlsen
doaj   +1 more source

Gallery Posets of Supersolvable Arrangements [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2014
We introduce a poset structure on the reduced galleries in a supersolvable arrangement of hyperplanes. In particular, for Coxeter groups of type A or B, we construct a poset of reduced words for the longest element whose Hasse diagram is the graph of ...
Thomas McConville
doaj   +1 more source

Relational Theory of Risk and Its Applications to Game Theory Problems of Non-Numerical Economics

open access: yesСтатистика и экономика, 2021
The purpose of the work is to study the foundations of a general risk theory. To form a single formal concept of risk, a number of definitions of the term “risk” found in the literature have been analyzed.
T. A. Urazaeva
doaj   +1 more source

Visualizing Experimental Designs for Balanced ANOVA Models using Lisp-Stat

open access: yesJournal of Statistical Software, 2004
The structure, or Hasse, diagram described by Taylor and Hilton (1981, American Statistician) provides a visual display of the relationships between factors for balanced complete experimental designs.
Philip W. Iversen, Mervyn Marasinghe
doaj   +1 more source

Set Visualisations with Euler and Hasse Diagrams [PDF]

open access: yes, 2021
AbstractThis paper discusses set visualisations with concept lattices in the sense of Formal Concept Analysis (FCA) in contrast to visualisations with Euler diagrams. Both types of visualisations have advantages and disadvantages. Because of the connection between both fields and the body of knowledge that exists in both fields it is of interest to ...
openaire   +1 more source

EL-labelings and canonical spanning trees for subword complexes [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2013
We describe edge labelings of the increasing flip graph of a subword complex on a finite Coxeter group, and study applications thereof. On the one hand, we show that they provide canonical spanning trees of the facet-ridge graph of the subword complex ...
Vincent Pilaud, Christian Stump
doaj   +1 more source

Uniformly discrete hit-and-miss hypertopology. A missing link in hypertopologies

open access: yesApplied General Topology, 2006
Recently it was shown that the lower Hausdorff metric (uniform) topology is generated by families of uniformly discrete sets as hit sets. This result leads to a new hypertopology which is the join of the above topology and the upper Vietoris topology ...
Giuseppe Di Maio   +2 more
doaj   +1 more source

Hierarchy of RG flows in 6d (1, 0) orbi-instantons

open access: yesJournal of High Energy Physics, 2022
N M5-branes probing the intersection between the orbifold ℂ2 /ΓADE and an E 8 wall give rise to 6d (1, 0) SCFTs known as ADE-type orbi-instantons. At fixed N and order of the orbifold, each element of Hom(ΓADE , E 8) defines a different SCFT.
Marco Fazzi, Suvendu Giri
doaj   +1 more source

A numeral system for the middle-levels graphs

open access: yesElectronic Journal of Graph Theory and Applications, 2021
A sequence S of restricted-growth strings unifies the presentation of middle-levels graphs Mk as follows, for 0 < k ∈ Z. Recall Mk is the subgraph in the Hasse diagram of the Boolean lattice 2[2k+1] induced by the k- and (k+1)-levels.
Italo J. Dejter
doaj   +1 more source

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