The present paper is a detailed and almost self-contained introduction to
Kazarnovskii mixed pseudovolume. It provides new formulas and new results about
Alexandroff-Fenchel type inequalities for Kazarnovskii mixed pseudovolume....
MADHAT: Model-Agnostic Dark Halo Analysis Tool
October 7, 2019
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Physics
High Energy Physics - Phenomenology
High Energy Astrophysical Phenomena
We present the Model-Agnostic Dark Halo Analysis Tool (MADHAT), a numerical
tool which implements a Fermi-LAT data-driven, model-independent analysis of
gamma-ray emission from dwarf satellite galaxies and dwarf galaxy candidates
due to dar...
Do charged pions condense in a magnetic field with rotation?
October 7, 2019
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Physics
High Energy Physics - Phenomenology
Nuclear Theory
We revisit the condensation scenario of charged pions in external magnetic
field and rotation, which was first considered by Y. Liu and I. Zahed. Based on
the Ginzburg-Landau analysis of the Nambu--Jona-Lasinio model, we find that the
charg...
C*-algebras of self-similar actions of groupoids on higher-rank graphs
and their equilibrium states
October 6, 2019
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Mathematics
Operator Algebras
We introduce the notion of a self-similar action of a groupoid G on a
finite higher-rank graph. To these actions we associate a compactly aligned
product system of Hilbert bimodules, and thereby obtain corresponding universal
Nica--Toepli...
Decidability of membership problems for flat rational subsets of
GL(2,Q) and singular matrices
October 5, 2019
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Computer Science
Formal Languages and Automata Theory
We consider membership problems for rational subsets of the semigroup of
2×2 matrices over Q. For a semigroup M, the rational
subsets Rat(M) are defined as the sets accepted by NFAs whose
transitions are labe...
A Note on Fractional DP-Coloring of Graphs
October 4, 2019
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Mathematics
Combinatorics
DP-coloring (also called correspondence coloring) is a generalization of list
coloring introduced by Dvo\v{r}\'{a}k and Postle in 2015. In 2019, Bernshteyn,
Kostochka, and Zhu introduced a fractional version of DP-coloring. They showed
that...
Maximum Matchings in Geometric Intersection Graphs
October 4, 2019
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Computer Science
Computational Geometry
Data Structures and Algorithms
Let G be an intersection graph of n geometric objects in the plane. We
show that a maximum matching in G can be found in
O(ρ3ω/2nω/2) time with high probability, where ρ is
the density of the geometric object...
Transitive closure in a polluted environment
October 4, 2019
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Mathematics
Probability
Combinatorics
We introduce and study a new percolation model, inspired by recent works on
jigsaw percolation, graph bootstrap percolation, and percolation in polluted
environments. Start with an oriented graph G0 of initially occupied edges on
n ver...
Donor's Deferral and Return Behavior: Partial Identification from a
Regression Discontinuity Design with Manipulation
October 4, 2019
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Statistics
Methodology
Applications
Machine Learning
Volunteer labor can temporarily yield lower benefits to charities than its
costs. In such instances, organizations may wish to defer volunteer donations
to a later date. Exploiting a discontinuity in blood donations' eligibility
criteria, w...
Method for the semantic indexing of concept hierarchies, uniform
representation, use of relational database systems and generic and case-based
reasoning
October 3, 2019
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Computer Science
Artificial Intelligence
Artificial Intelligence
This paper presents a method for semantic indexing and describes its
application in the field of knowledge representation. Starting point of the
semantic indexing is the knowledge represented by concept hierarchies. The goal
is to assign ke...