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Найдено 5 500 публикаций
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Статья
Shirokov D. Advances in Applied Clifford Algebras. 2010. Vol. 20. No. 2. P. 411-425.
Добавлено: 16 июня 2015
Статья
Decrouez G. G., Jones O. D. The Annals of Applied Probability. 2012. Vol. 22. No. 6. P. 2357-2387.

We present a new class of multifractal process on R, constructed using an embedded branching process. The construction makes use of known results on multitype branching random walks, and along the way constructs cascade measures on the boundaries of multitype Galton–Watson trees. Our class of processes includes Brownian motion subjected to a continuous multifractal time-change. In addition, if we observe our process at a fixed spatial resolution, then we can obtain a finite Markov representation of it, which we can use for on-line simulation. That is, given only the Markov representation at step n, we can generate step n+1 in O(log n) operations. Detailed pseudo-code for this algorithm is provided.R

 

nn+1O(logn)

 

Добавлено: 29 сентября 2014
Статья
Akaev A., Sadovnichiy V. Herald of the Russian Academy of Sciences. 2016. Vol. 86. No. 5. P. 371-383.

A full closed mathematical model to describe and calculate Kondratiev’s long wave (LW) of economic development is presented for the first time. The innovative process that generates a new long wave in the economy is described as a stochastic Poisson process. The key role in constructing production functions during both the upward and downward trends of the LW is played by the self-similarity property of the innovative process, which is determined by its fractal structure. The role of the switch from an upward wave to a downward one is played by entrepreneurial profit; this article places primary emphasis on calculation of it. The practical effect of the model developed is illustrated through predictive calculations of GDP movement paths and the number of employees in the economy and the dynamics of fixed physical capital formation and growth of labor productivity by the example of the development of the US economy during the coming sixth Kondratiev LW (2018–2050).

Добавлено: 28 октября 2018
Статья
Feigin B. L., Hashizume K., Hoshino A. et al. Journal of Mathematical Physics. 2009. Vol. 50. No. 9. P. 095215-1-095215-42.
Добавлено: 25 января 2013
Статья
Zlotnik A., Čiegis R. Applied Mathematics Letters. 2021. Vol. 115. P. 1-7.
Добавлено: 9 декабря 2020
Статья
Shevgunov T. Journal of Physics: Conference Series. 2019. Vol. 1163. No. 1. P. 1-6.
Добавлено: 28 апреля 2019
Статья
Malyshev D. Journal of Combinatorial Optimization. 2016. Vol. 32. No. 1. P. 226-243.
Добавлено: 4 апреля 2015
Статья
Gaydukov R. K., Fonareva A. V. Russian Journal of Mathematical Physics. 2019. Vol. 26. No. 3. P. 334-343.
Добавлено: 2 сентября 2019
Статья
Bogomolov F. A., Greenleaf F. P. Proceedings of the Edinburgh Mathematical Society. 2014. Vol. 57. No. 1. P. 31-53.
Добавлено: 15 августа 2014
Статья
Artale A., Kontchakov R., Ryzhikov V. et al. ACM Transactions on Computational Logic. 2014. Vol. 15. No. 3. P. 25.1-25.50.

We design temporal description logics (TDLs) suitable for reasoning about temporal conceptual data models and investigate their computational complexity. Our formalisms are based on DL-Lite logics with three types of concept inclusions (ranging from atomic concept inclusions and disjointness to the full Booleans), as well as cardinality constraints and role inclusions. The logics are interpreted over the Cartesian products of object domains and the flow of time (ℤ, <), satisfying the constant domain assumption. Concept and role inclusions of the TBox hold at all moments of time (globally), and data assertions of the ABox hold at specified moments of time. To express temporal constraints of conceptual data models, the languages are equipped with flexible and rigid roles, standard future and past temporal operators on concepts, and operators “always” and “sometime” on roles. The most expressive of our TDLs (which can capture lifespan cardinalities and either qualitative or quantitative evolution constraints) turns out to be undecidable. However, by omitting some of the temporal operators on concepts/roles or by restricting the form of concept inclusions, we construct logics whose complexity ranges between NLogSpace and PSpace. These positive results are obtained by reduction to various clausal fragments of propositional temporal logic, which opens a way to employ propositional or first-order temporal provers for reasoning about temporal data models.

Добавлено: 25 марта 2015
Статья
Gouezel S., Shchur V. Journal of Functional Analysis. 2019. Vol. 277. No. 4. P. 1258-1268.
Добавлено: 22 марта 2019
Статья
Haufe S., Nikulin V., Müller K. et al. Neuroimage. 2013. No. 64. P. 120-133.
Добавлено: 23 октября 2014
Статья
Le Floch B., Smilga I. Comptes Rendus Mathematique. 2018. Vol. 356. No. 8 . P. 852-858.
Добавлено: 26 сентября 2018
Статья
Kudryashov Y., Kleptsyn V. Ergodic Theory and Dynamical Systems. 2015. Vol. 35. No. 03. P. 935-943.

We construct a curve in the unstable foliation of an Anosov diffeomorphism such that the holonomy along this curve is defined on all of the corresponding stable leaves.

Добавлено: 30 сентября 2013
Статья
Gorsky E. Moscow Mathematical Journal. 2009. Vol. 9. No. 2. P. 305-323.
Добавлено: 9 декабря 2014
Статья
El-Fakih K., Nina Yevtushenko, Kushik N. Formal Aspects of Computing. 2018. Vol. 30. No. 2. P. 319-332.
Добавлено: 31 октября 2018
Статья
Stonyakin F. S., Alkousa M., Stepanov A. N. et al. Journal of Applied and Industrial Mathematics. 2019. Vol. 13. P. 557-574.
Добавлено: 29 октября 2020
Статья
Brav C. I., Bussi V., Joyce D. Journal of the American Mathematical Society. 2019. No. 32. P. 399-443.
Добавлено: 16 октября 2018
Статья
Gushchin A. A., Küchler U. Bernoulli: a journal of mathematical statistics and probability. 2001. Vol. 7. No. 4. P. 629-632.

We strengthen the convergence result in our paper, ibid. 5, No. 6, 1059-1098 (1999; Zbl 0983.62049), proving the local asymptotic mixed normality property in one of the 11 cases considered in that paper.

Добавлено: 9 октября 2013
Статья
Belomestny D., Kraetschmer V. Annals of Applied Probability. 2017. Vol. 2. No. 27. P. 1289-1293.
Добавлено: 22 сентября 2017
Статья
Dzhunusov S. International Journal of Algebra and Computation. 2021. No. 1. P. 19-35.
Добавлено: 15 января 2021