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Найдены 52 823 публикации
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Статья
Cheltsov I., Park J., Won J. Journal of the European Mathematical Society. 2016. Vol. 18. No. 7. P. 1537-1564.

We show that affine cones over smooth cubic surfaces do not admit non-trivial Ga-actions.

Добавлено: 1 июля 2016
Статья
Arzhantsev I., Timashev D. Transformation Groups. 2001. Vol. 6. No. 2. P. 101-110.
Добавлено: 8 июля 2014
Статья
Braverman A., Finkelberg M. V., Kazhdan D. Springer Proceedings in Mathematics & Statistics. 2012. Vol. 9. P. 17-29.
Добавлено: 5 февраля 2013
Статья
Frenkel E., Feigin B. L. Communications in Mathematical Physics. 1990. Vol. 128. No. 1. P. 161-189.
Добавлено: 2 июня 2010
Статья
Gorsky E., Mazin M., Vazirani M. Transactions of the American Mathematical Society. 2016. Vol. 368. No. 12. P. 8403-8445.
Добавлено: 14 февраля 2015
Статья
Gaifullin S. A. Sbornik Mathematics. 2008. Vol. 199. No. 3. P. 319-339.
Добавлено: 17 декабря 2014
Статья
Krishna K., Tarasov A. American Economic Journal: Microeconomics. 2016. Vol. 8. No. 2. P. 215-252.

This paper identifies a new reason for giving preferences to the disadvantaged using a model of contests. There are two forces at work: the e§ort e§ect working against giving preferences and the selection e§ect working for them. When education is costly and easy to obtain (as in the U.S.), the selection e§ect dominates. When education is heavily subsidized and limited in supply (as in India), preferences are welfare reducing. The model also shows that unequal treatment of identical agents can be welfare improving, providing insights into when the counterintuitive policy of rationing educational access to some subgroups is welfare improving.

Добавлено: 2 октября 2015
Статья
Порус В. Н. Эпистемология и философия науки. 2014. Т. XLII. № 4. С. 41-45.

Анализируя опубликованную в этом же номере журнала работу Р. Харре, автор высказывает предположение, что Р. Харре рассматривает не абстрактную возможность, а реальные условия, при которых возможность актуализируется. В терминах Харре, потенциал человеческих возможностей может увеличиваться или уменьшаться в зависимости от того, какое воздействие на него оказывает культурный социум.

Добавлено: 16 марта 2015
Статья
Knyazev S. V. Linguistica Lettica. 2016. Vol. 24. P. 140-149.

Standard Modern Russian has phonological contrast between palatal- ized and velarized consonants. One of the most prominent changes attributed recently to this part of its phonetic system is the dramatic aƵrication of pala- talized dental stops which are now pronounced in most phonetic contexts as aƵricates [tsj], [dzj]. The paper proposes the hypothesis that a fast spread of palatalized dental stops’ aƵrication in Standard Modern Russian is triggered by the need to more eƵectively distinguish palatalized plosives in situations that do not provide the primary acoustic cue (formant transition of adjacent vowel) for their diƵerentiation to the listener. Palatalized dental plosives still should be treated phonologically as stops since in the context of homorganic nasal or stop they are not aƵricated (and often unreleased), while the fricative part of dental aƵricates in the same position still preserved in pronunciation of all the subjects studied.

Добавлено: 17 декабря 2016
Статья
Safranchuk I. Russia in Global Affairs. 2012. Vol. 10. No. 3. P. 154-160.
Although Moscow has no reasons to be proactive in Afghan affairs, it will probably need to step up its efforts. Ultimately, the Afghans should be given the opportunity to build up a steady balance of forces at home, and then use these forces as a basis for political compromise.
Добавлено: 13 августа 2017
Статья
Safranchuk I. India Quarterly. 2019.
Добавлено: 11 декабря 2018
Статья
Vadim Arzamasov, Penikas H. I. Procedia Computer Science. 2014. Vol. 31. P. 985-994.
Добавлено: 3 июля 2014
Статья
Braverman A., Rybnikov L. G., Feigin B. L. et al. Communications in Mathematical Physics. 2011. Vol. 308. No. 2. P. 457-478.
Недавно Алдай, Гайотто и Тачикава выдвинули гипотезу (AGT), связывающую 4-мерную супер-симметричную калибровочную теорию с калибровочной группой G с некоторой 2-мерной конформной теорией поля. Эта гипотеза предсказывает наличие некоторых структур на эквивариантных когомологиях Горески-Макферсона компактификаций Уленбек пространства модулей G-расслоений на P^2. Более точно, она предсказывает действие W-алгебры в этих когомологиях, обладающее определенными свойствами. Мы доказываем «конечный аналог» (этого следствия) этого утверждения.
Добавлено: 12 мая 2012
Статья
Glutsyuk A., Ramassamy S. Journal of Geometry and Physics. 2018. Vol. 130. P. 121-129.
Добавлено: 29 июня 2018
Статья
Budkov Y., Kolesnikov A., Georgi N. et al. EPL. 2015. Vol. 109. P. 36005-p1-36005-p6.
Добавлено: 21 марта 2015
Статья
V Grekul, Baydalina L. Computer Modelling and New Technologies. 2014. Vol. 18. No. 6. P. 261-270.
Добавлено: 20 октября 2014
Статья
Verbitsky M. Selecta Mathematica, New Series. 2012. Vol. 18. No. 3. P. 539-555.

A knot space in a manifold M is a space of oriented immersions S1M up to Diff(S 1). J.-L. Brylinski has shown that a knot space of a Riemannian threefold is formally Kähler. We prove that a space of knots in a holonomy G 2 manifold is formally Kähler.

Добавлено: 25 октября 2012
Статья
Smeliansky R., Chemeritsky E., Zakharov V. Automatic Control and Computer Sciences. 2014. Vol. 48. No. 7. P. 398-406.
Добавлено: 30 сентября 2015
Статья
Fomichov V. A., Кирилов А. С. Lecture Notes in Computer Science. 2012. Vol. 7557 LNAI. P. 296-304.
The paper describes a new method of constructing semantic expansions of search requests about the achievements and failures of active systems (organizations, people) for improving the results of Web search. This method is based on the theory of K-representations (knowledge representations), proposed by V.A. Fomichov - a new theory of designing semantic-syntactic analysers of natural language texts with the broad use of formal means for representing input, intermediary, and output data. The method uses an original formal model of a goals base - a knowledge base containing the information about the goals of active systems. The stated approach is implemented with the help of the Web programming language Java: an experimental search system AOS (Aspect Oriented Search) has been developed and tested.
Добавлено: 6 февраля 2013
Статья
Veretennikova M., Kolokoltsov V. Communications in Applied and Industrial Mathematics. 2015. Vol. 6. No. 1. P. 1-18.

In this article we study a controlled Continuous Time Random Walk and its position-dependent extensions. We heuristically derive the optimal payoff function equations for their scaling limits. The general equation for the corresponding optimal payoff of the limiting process may be called a fractional Hamilton Jacobi Bellman equation.

Добавлено: 5 октября 2016
Статья
Korotayev A., Issaev L., Shishkina A. et al. Social Evolution & History. 2016. Vol. 15. No. 2. P. 120-140.

The evolution of the Afroeurasian world-system which in the ‘long 16th century’ was transformed into the global World System comprised both economic and political components, some of which are discussed in the present article. Earlier research has identified four major zones of instability which can be designated as the Central Asian (including Afghanistan and Pakistan), the Middle East, North Africa, and the Sahel region. We suggest considering these four zones as a single Afrasian macrozone of instability. We show that this zone correlates rather closely with the zone of traditional prevalence of the parallel cousin marriage, as well as with the zone of very low female labor force participation rate, and the territory of the Umayyad Califate. The article demonstrates that this correlation is not coincidental and also discusses the factors and mechanisms that have produced it. 

Добавлено: 30 сентября 2016