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- Physico-Technical InstituteRU63 papers
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19 papers · 1 filter
Reconstructions in human history by mapping dental markers in living Eurasian populations
Vera F. Kashibadze, Olga G. Nasonova, Dmitry S. Nasonov
On the base of advantages in gene geography and anthropophenetics the phenogeographical method for anthropological research is initiated and experienced using dental data. Statisti…
A polynomial bound on solutions of quadratic equations in free groups
Igor Lysenok, Alexei Myasnikov
We provide polynomial upper bounds on the size of a shortest solution for quadratic equations in a free group. A similar bound is given for parametric solutions in the description…
Galactic Kinematics from OB3 Stars with Distances determined from Interstellar Ca II Lines
Vadim Bobylev, Anisa Bajkova
Based on data for 102 OB3 stars with known proper motions and radial velocities, we have tested the distances derived by Megier et al. from interstellar Ca II spectral lines. The i…
Searching for Possible Siblings of the Sun from a Common Cluster based on Stellar Space Velocities
V. V. Bobylev, A. T. Bajkova, A. Myllari +1
We propose a kinematic approach to searching for the stars that could be formed with the Sun in a common "parent" open cluster. The approach consists in preselecting suitable candi…
Statistical methods of SNP data analysis with applications
Alexander Bulinski, Oleg Butkovsky, Alexey Shashkin +1
Various statistical methods important for genetic analysis are considered and developed. Namely, we concentrate on the multifactor dimensionality reduction, logic regression, rando…
A physical mechanism of solar corona heating
I. K. Mirzoeva
Time profiles of solar soft X-ray microflares and structure soft X-ray solar corona thermal background are studied on RHESSI data. The observations of 2003 year are analyzed. Decre…