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Browsing Институт математики и механики им. Н.И. Лобачевского by Author "Институт математики и механики им.Н.И.Лобачевского"

Now showing items 1-20 of 216

A note about torsional rigidity and Euclidean moments of plane domains

Салахудинов Рустем Гумерович (2018)

Доказаны новые неравенства в классе выпуклых областей на плоскости
A. Kacimov, Y. Obnosov, O. Abdalla, O. Castro-Orgaz. Groundwater flow in hillslopes: Analytical solutions by the theory of holomorphic functions and hydraulic theory // Applied Mathematical Modelling. - 2015. - Vol. 39 (12). P. 3380-3397.

Обносов Юрий Викторович; Kacimov Anvar Rashidovich; Castro-Orgaz Oscar Oscar; Abdalla Osman Osman (2015)

Решения Дахлера-Герсеванова задач об установившемся, двумерном течении над наклонным водоупором обобщены на случай углообразного непроницаемого подстилающего слоя с вершиной угла в качестве точки торможения потока или ...
An R-linear conjugation problem for two concentric annuli

Обносов Юрий Викторович; Казарин Анатолий Юрьевич (2015)

We consider an infinite planar four-phase heterogeneous medium with three concentric circles as a boundary between isotropic medium's components of distinct resistivities/conductivities. It is supposed that the velocity ...
Approximate Conformal Mappings and Elasticity Theory

Ivanshin Petr Nikolaevich; Shirokova Elena Aleksandrovna (2016)

Here, we present the new method of approximate conformal mapping of the unit disk to a one-connected domain with smooth boundary without auxiliary constructions and iterations. The mapping function is a Taylor polynomial. ...
Bikchentaev A.M., Ivanshin P.A. On operators all of which powers have the same trace // The 14th Biennial IQSA Conference "Quantum Structures 2018", 16-20 July 2018, Kazan, Russia. Kazan Federal University. - P. 16.

Bikchentaev Airat Midkhatovich; Ivanshin Petr Nikolaevich (2018)

We investigate operators all of which powers have the same trace
Block projection operators in normed solid spaces of measurable operators

Bikchentaev Airat Midkhatovich (2012)

We investigate a block projection operators in normed solid spaces of measurable operators
Boolean algebras realized by c.e. equivalence relations

Bazhenov Nikolaj Alekseevich; Mustafa Manat; Stephan Frank; Yamaleev Mars Mansurovich (2017)

В статье рассматривается связь между алгоритмическими свойствами отношений эквивалентности и булевыми алгебрами, реализованными этими отношениями эквивалентности.
COMBINATORIAL PROBLEMS OF ENUMERATION IN PROGRAMMING CONTESTS

Kinder Mihail Ivanovich; Falileeva Marina Viktorovna; Shakirova Liliana Rafikovna (2016)

This paper describes a recursive approach to the enumeration of some classes of combinatorial tasks. Most tasks are used in the specific scope of teaching and learning informatics through olympiads and other competitions ...
Commuation of projections and characterization of tracial states on von Neumann algebras

Bikchentaev Airat Midkhatovich (2019)

Установлены критерии перестановочности проекторов и получены характеризации следовых функционалов среди всех положительных нормальных функционалов на алгебре фон Неймана.
Commutativity of operators and characterization of traces on C*-algebras

Бикчентаев Айрат Мидхатович (2013)

We investigate connections between commutativity of operators and characterization of traces on C*-algebras
Comporable functionals of convex domains

Salakhudinov Rustem Gumerovich (2018)

Приведены новые сравнимые функционалы области.
Control of Topology of Water Fluxes in Arid Agriculture: Amalgamation of Subsurface Irrigation, Managed Aquifer Recharge and Engineered Soil Substrat

Kacimov Anvar Rashidovich; Al-Ismaily Said; Al-Maktoumi Ali; Obnosov Yurii Viktorovich (2016)

We present the results of field-, farm- observations and experiments, as well as mathematical modeling of optimal control of descending, ascending and lateral water fluxes (viz., evapotranspiration, infiltration, seepage ...
Cross-national study of lower secondary mathematics teachers' content knowledge in USA and Russia

Шакирова Лилиана Рафиковна; Ибрагимова Елена Николаевна; Шакирова Кадрия Бариевна; Quinones Maria Cruz; Чошанов Мурат Аширович (2017)

The quantitative study focused on comparative analysis of middle school mathematics teachers' content knowledge in two countries. The sample consisted of lower secondary mathematics teachers from the US (grades 6-9, N=102) ...
Cамодействие скалярного заряда в заряженной экстремальной анти-дилатонной кротовой норе

Аслан Осман; Попов Аркадий Александрович (2018)

Вычислена сила самодействия скалярного заряда в пространстве-времени экстремальной заряженной анти-дилатонной кротовой норы. Предполагается, что скалярный заряд является источником безмассового скалярного поля, минимально ...
Cамодействие электромагнитного заряда в кротовой норе с бесконечно короткой горловиной

Аслан Осман; Попов Аркадий Александрович (2021)

Вычислена сила самодействия электромагнитного заряда в пространстве-времени кротовой норы с бесконечно короткой горловиной. Предполагается, что заряд является источником электромагнитного поля, неминимально связанного с ...
Dark Matter as a Result of Field Oscillations in the Modified Theory of Induced Gravity

Zaripov Farkhat Shaukatovich (2020)
Digital Mathematical Libraries: Overview of Implementations and Content Management Services

Elizarov Aleksandr Mihajlovich; Lipachev Evgeny Konstantinovich; Zuev Denis Sergeevich (2017)

The paper gives a review of existing projects of implementation of digital mathematical libraries. An analysis of existing information systems of digital mathematical libraries is performed using the evaluation criteria ...
Dipolic MAR "bubble" inside confined brine formation or floating "lens" on top of unconfined saline aquifer.

Kacimov Anvar; Obnosov Yurii Viktorovich; Al-Maktoumi Ali (2019)

In arid desert environments, MAR sites are often characterized by high salinity of the ambient groundwater and intensive evaporation. We present mathematical modeling of two MAR scenarios: 1) injection-abstraction of fresh ...
Dominated convergence in measure on semifinite von Neumann algebras and arithmetic averages of measurable operators

Bikchentaev Airat Midkhatovich; Sabirova Albina Albertovna (2012)

We study dominated convergence in measure on semifinite von Neumann algebras and arithmetic averages of measurable operators
Elementary Theories and Structural properties of D-C.E and N-C.E. Degrees

Yamaleev Mars Mansurovich; Arslanov Marat Mirzaevich; Kalimullin Iskander Shagitovich (2016)

In the paper we present a survey on n-c.e. Turing and e-degrees. Also we discuss some open problems and prove a new results.

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Browsing Институт математики и механики им. Н.И. Лобачевского by Author "Институт математики и механики им.Н.И.Лобачевского"

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