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- Centre National de la Recherche ScientifiqueFR58 papers
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7 papers · 1 filter
On weak generalized stability and (c,d)-pseudostable random variables via functional equations
W. Jarczyk, J. Misiewicz
In this paper we give a first attempt to define and study stable distributions with respect to the weak generalized convolution, focusing our attention on the symmetric weakly stab…
Dark Matter Gravitational Clustering With a Long-Range Scalar Interaction
Wojciech A. Hellwing, Roman Juszkiewicz
We explore the possibility of improving the CDM model at megaparsec scales by introducing a scalar interaction which increases the mutual gravitational attraction of dark matter…
The Coin Exchange Problem and the Structure of Cube Tilings
Andrzej P. Kisielewicz, Krzysztof Przesławski
Let k_1,...,k_d be positive integers, and D be a subset of [k_1]x...x[k_d], whose complement can be decomposed into disjoint sets of the form {x_1}x...x{x_{s-1}}x[k_s]x{x_{s+1}}x..…
XMM-Newton Observations of Radio Pulsars B0834+06 and B0826-34 and Implications for Pulsar Inner Accelerator
J. Gil, F. Haberl, G. Melikidze +2
We report the X-ray observations of two radio pulsars with drifting subpulses: B0834 + 06 and B0826 - 34 using \xmm\. PSR B0834 + 06 was detected with a total of 70 counts from the…
Global integrability of cosmological scalar fields
Andrzej J. Maciejewski, Maria Przybylska, Tomasz Stachowiak +1
We investigate the Liouvillian integrability of Hamiltonian systems describing a universe filled with a scalar field (possibly complex). The tool used is the differential Galois gr…
Crossover from Reptation to Rouse dynamics in the Extended Rubinstein-Duke Model
Andrzej Drzewinski, J. M. J. van Leeuwen
The competition between reptation and Rouse Dynamics is incorporated in the Rubinstein-Duke model for polymer motion by extending it with sideways motions, which cross barriers and…