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Aug 14, 2012
Cellular Automata and Lattice Gases
Formal Languages and Automata Theory
General Topology

In the future, it would be interesting to consider connections between dynamical notions such as transitivity, mixingness, sensitivity and entropy by proving that under some additional natural constraints on the topologies considered, closedness of …

Topology Inspired Problems for Cellular Automata, and a Counterexampl…

We consider two relatively natural topologizations of the set of all cellular automata on a fixed alphabet. The first turns out to be rather patholog…
Feb 19, 2009

Bayesian analysis of the radial velocities of HD 11506 reveals anothe…

We aim to demonstrate the efficiency of a Bayesian approach in analysing radial velocity data by reanalysing a set of radial velocity measurements. W…
Nov 12, 2016

X-ray burst induced spectral variability in 4U 1728-34

Aims. INTEGRAL has been monitoring the Galactic center region for more than a decade. Over this time INTEGRAL has detected hundreds of type-I X-ray b…
Aug 25, 2015

Redshift measurement of Fermi Blazars for the Cherenkov Telescope Arr…

Blazars are active galactic nuclei, and the most numerous High Energy (HE) and Very High Energy (VHE) gamma-ray emitters. Their optical emission is o…
Apr 05, 2013
Discrete Mathematics
Combinatorics

The major part of this work was achieved when the first author was a member of the FiDiPro group of the FUNDIM research center at the University of Turku. The authors warmly thank Juhani Karhumäki and Luca Zamboni for their support.

The freeness problem over matrix semigroups and bounded languages

We study the freeness problem for matrix semigroups. We show that the freeness problem is decidable for upper-triangular $2\times 2$ matrices with ra…
Jul 18, 2014

Galaxy and Mass Assembly (GAMA): merging galaxies and their properties

We derive the close pair fractions and volume merger rates as a function of luminosity and morphology for galaxies in the GAMA survey with -23 < M(r)…
Jan 22, 2018
Materials Science
Atomic and Molecular Clusters

Electron spin resonance study of atomic hydrogen stabilized in solid …

We report on an electron spin resonance study of atomic hydrogen stabilized in a solid Ne matrices carried out at a high field of 4.6 T and temperatu…
Nov 06, 2012

Counting the number of planets around GJ 581. False positive rate of …

The four-planet system around GJ 581 has received attention because it has been claimed that there are possibly two additional low-mass companions as…
Aug 29, 2011

Scattering of knotted vortices (Hopfions) in the Faddeev-Skyrme model

Several materials, such as ferromagnets, spinor Bose-Einstein condensates, and some topological insulators, are now believed to support knotted struc…
Mar 19, 2010

Decoherence control in different environments

We investigate two techniques for controlling decoherence, focusing on the crucial role played by the environmental spectrum. We show how environment…
Nov 15, 2016

The K-band luminosity functions of cluster galaxies

We derive the galaxy luminosity function in the $K_s$ band for galaxies in 24 clusters to provide a local reference for higher redshift studies and t…
May 17, 2014
Machine Learning

A two-step learning approach for solving full and almost full cold st…

Dyadic prediction methods operate on pairs of objects (dyads), aiming to infer labels for out-of-sample dyads. We consider the full and almost full c…
May 27, 2015

Study of FK Comae Berenices: VII. Correlating photospheric and chro…

We study the connection between the chromospheric and photospheric behaviour of the active late-type star FK Comae. We use spot temperature modelling…
Feb 09, 2012

Correlations in quantum states and the local creation of quantum disc…

Quantum discord is usually referred to as a measure for quantum correlations. In the search of the fundamental resource to gain a quantum advantage i…
Jun 07, 2013

Up to four planets around the M dwarf GJ 163. Sensitivity of Bayesian…

Exoplanet Doppler surveys are currently the most efficient means to detect low-mass companions to nearby stars. Among these stars, the light M dwarfs…
Aug 03, 2009

Measure for the Degree of Non-Markovian Behavior of Quantum Processes…

We construct a general measure for the degree of non-Markovian behavior in open quantum systems. This measure is based on the trace distance which qu…
Dec 21, 2017

Experimental implementation of fully controlled dephasing dynamics an…

Engineering, controlling, and simulating quantum dynamics is a strenuous task. However, these techniques are crucial to develop quantum technologies,…
Jan 07, 2016
Machine Learning

Fast Kronecker product kernel methods via generalized vec trick

Kronecker product kernel provides the standard approach in the kernel methods literature for learning from graph data, where edges are labeled and bo…
Sep 21, 2012
Machine Learning

Efficient Regularized Least-Squares Algorithms for Conditional Rankin…

In domains like bioinformatics, information retrieval and social network analysis, one can find learning tasks where the goal consists of inferring a…
Jun 29, 2011
Methodology

Application of Bayesian model inadequacy criterion for multiple data …

We present a simple mathematical criterion for determining whether a given statistical model does not describe several independent sets of measuremen…
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