Zobrazeno 1 - 10
of 465
pro vyhledávání: '"PARKKONEN, P."'
Autor:
Parkkonen, Jouni, Paulin, Frédéric
Let $A^-$ and $A^+$ be properly immersed closed locally convex subsets of a Riemannian manifold $M$ with pinched negative sectional curvature. When the Bowen-Margulis measure on $T^1M$ is finite and mixing for the geodesic flow, we prove that the Leb
Externí odkaz:
http://arxiv.org/abs/2410.09216
Autor:
Parkkonen, Jouni, Paulin, Frédéric
We give an asymptotic formula as $t\to+\infty$ for the number of common perpendiculars of length at most $t$ between two divergent geodesics or a divergent geodesic and a compact locally convex subset in negatively curved locally symmetric spaces wit
Externí odkaz:
http://arxiv.org/abs/2409.18251
Autor:
Parkkonen, Jouni, Paulin, Frédéric
Publikováno v:
Ergod. Th. Dynam. Sys. 44 (2024) 2700-2736
We prove a joint partial equidistribution result for common perpendiculars with given density on equidistributing equidistant hypersurfaces, towards a measure supported on truncated stable leaves. We recover a result of Marklof on the joint partial e
Externí odkaz:
http://arxiv.org/abs/2212.09123
Publikováno v:
Materials & Design, Vol 245, Iss , Pp 113230- (2024)
The increased interest in printed electronics necessitates the development of suitable sustainable substrates for them. In this study, the suitability of acetylated cellulose nanofiber (ACNF) films as substrates for printed electronics were examined
Externí odkaz:
https://doaj.org/article/113f9ef968284afa86adbaaeeb2082f9
Autor:
Parkkonen, Jouni, Paulin, Frédéric
We study the correlations of pairs of complex logarithms of $\mathbb Z$-lattice points in the complex line at various scalings, proving the existence of pair correlation functions. We prove that at the linear scaling, the pair correlations exhibit le
Externí odkaz:
http://arxiv.org/abs/2206.14600
Autor:
Parkkonen, Jouni, Paulin, Frédéric
We extend formulae of Mertens and Mirsky on the asymptotic behaviour of the standard Euler function to the Euler functions of principal rings of integers of imaginary quadratic number fields, giving versions in angular sector and with congruences.
Externí odkaz:
http://arxiv.org/abs/2205.15844
Autor:
Tayler, Michael C. D., Mouloudakis, Kostas, Zetter, Rasmus, Hunter, Dominic, Lucivero, Vito G., Bodenstedt, Sven, Parkkonen, Lauri, Mitchell, Morgan W.
Publikováno v:
Physical Review Applied 18, 014036 -- Published 15 July 2022
Atomic spin sensors offer precision measurements using compact, microfabricated packages, placing them in a competitive position for both market and research applications. Performance of these sensors such as dynamic range may be enhanced through mag
Externí odkaz:
http://arxiv.org/abs/2204.01370
Autor:
Iivanainen, Joonas, Borna, Amir, Zetter, Rasmus, Carter, Tony R., Stephen, Julia M., McKay, Jim, Parkkonen, Lauri, Taulu, Samu, Schwindt, Peter D. D.
In this paper, we propose a method to estimate the position, orientation and gain of a magnetic field sensor using a set of (large) electromagnetic coils. We apply the method for calibrating an array of optically pumped magnetometers (OPMs) for magne
Externí odkaz:
http://arxiv.org/abs/2203.04900
Autor:
Parkkonen, Jouni, Paulin, Frédéric
We prove an abstract result on the correlations of pairs of elements in an exponentially growing discrete subset $\mathcal E$ of $[0,+\infty[\,$ endowed with a weight function. Assume that there exist $\alpha\in\mathbb R$, $c,\delta>0$ such that, as
Externí odkaz:
http://arxiv.org/abs/2201.12118
Autor:
Joonas Wasiljeff, Johanna M. Salminen, Andrew P. Roberts, Pengxiang Hu, Maxwell Brown, Jukka Kuva, Sari Lukkari, Ester M. Jolis, Atko Heinsalu, Wei‐Li Hong, Aivo Lepland, Sten Suuroja, Joni Parkkonen, Joonas J. Virtasalo
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 25, Iss 5, Pp n/a-n/a (2024)
Abstract Ferromanganese concretions commonly occur in shallow‐water coastal regions worldwide. In the Baltic Sea, they can record information about past and present underwater environments and could be a potential source for critical raw materials.
Externí odkaz:
https://doaj.org/article/0bffba52da1848c5be56a0cffeba1573