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t-Распределение случайной матрицы и его применение в регрессионной модели
Высшая школа экономики
,
2010.
№ 01.
This paper is concerned with matrix variate t-distribution. The degrees of freedom parameter of the t-distribution is a vector. The distribution is applied to multivariate regression models.
Research target:
Sociology (including Demography and Anthropology
Economics and Management
Mathematics
Language:
Russian
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Dunde T. O., Вестник Санкт-Петербургского университета. Серия 12: Социология 2026 Vol. 19 No. 1 P. 111–137
This systematic literature review examines how international students engage with urban spaces using Henri Lefebvre’s Relational Space Theory, challenging Berry’s bidimensional acculturation model. The review synthesizes 35 peer reviewed articles published between 1991 and 2025, identified through searches across six academic databases and manual screen-ing of journals. Using content analysis integrating text mining with close ...
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Levashev V., / Series arXiv "math". 2026. No. 2609.06010.
We prove that continuous A-bilinear pairings on the ring of Laurent series that are invariant under continuous automorphisms coincide, up to a constant, with the pairing given by the residue of a differential form over any commutative associative ring with identity. ...
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Shkolnikov, V. M., Timonin, S. A., Jdanov D. et al., Plos One 2026 Vol. 21 No. 2 P. 1–15
For decades, life expectancy in Eastern Europe has lagged behind that in Western Europe, although the gap has narrowed since the mid-2000s. We examined the impact of the COVID-19 pandemic on these long-term trends by estimating and decomposing East-West differences in excess mortality and life expectancy losses. Regression models were used to explore the contribution ...
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Sokolov V., BALAKHNEV M. Y., Ufa Mathematical Journal 2026 Vol. 18 No. №3 P. 85–93
A collection of miscellaneous continuous, semi-discrete, and discrete integrable
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Festa G., D'Amato A., Palladino R. et al., European Journal of Innovation Management 2026 Vol. 29 No. 3 P. 728–744
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Artificial intelligence (AI) is vastly impacting the digital transformation of societies, economies, businesses, markets and enterprises, at a very fast pace, mostly after the global success of the generative algorithms. In this respect, this study, with an exploratory intention, aims to provide evidence about the fundamental issues of AI, particularly if generative, when adapted to ...
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Yakovlev E., Maksimov D. A., Mathematical notes 2026 Vol. 120 No. 3 P. 483–496
Smooth principal bundles whose total spaces and bases are time oriented Lorentzian manifolds and whose projections are Lorentzian submersions preserving time orientations are studied. Previously, the authors showed that the chronologicity, causality, and stable causality always lift from the base to the space of a Lorentzian bundle. For strong causality and global hyperbolicity, this holds ...
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Sokolov V., Shabat G. B., Tsiganov A. V., Journal of Geometry and Physics 2026 Vol. 220
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Marshakov A., Yung A., Ievlev E. et al., Physical Review D - Particles, Fields, Gravitation and Cosmology 2026 No. 114 P. 1–22
We continue the study of non-Abelian vortex string in 4D N ¼ 2 supersymmetric QCD (SQCD) as critical superstring, and extend this analysis to UðNÞ gauge theory with arbitrary even N and Nf ¼ 2N number of quarks. We introduce a special mass deformation and show that the SQCD hadron spectrum is still given by ...
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Pyatov P. N., Pivovarov P. A., / Series math "arxiv.org". 2026. No. 2609.06274.
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