A generalized triangle group is a group that can be presented in the form G = 〈 x, y | x = y = w(x, y) = 1 〉 where p, q, r ≥ 2 and w(x, y) is an element of the free product 〈 x, y | x = y = 1 〉 involving both x and y. Rosenberger has conjectured that every generalized triangle group G satisfies the Tits alternative. It is known that the conjecture holds except possibly when the triple (p, q, r)...

A.S. Trushechkin, 2, 3 E.O. Kiktenko, 4 and A.K. Fedorov 5, 6 Steklov Mathematical Institute of Russian Academy of Sciences, Moscow 119991, Russia National Research Nuclear University MEPhI, Moscow 115409, Russia Department of Mathematics and Russian Quantum Center, National University of Science and Technology MISiS, Moscow 119049, Russia Bauman Moscow State Technical University, Moscow 105005...

(a) The medians intersect in a point interior to the triangle, called the centroid, which divides each of the medians in the ratio 2 : 1. (b) The medians form a new triangle, called the median triangle. (c) The area of the median triangle is 3/4 of the area of the given triangle in which the medians were constructed. (d) The median triangle of the median triangle is similar to the given triangl...

experience of double revolutionary upheavals in russia during the 20th century which produced a new socio-economic regularity on one hand and changed the political system from monarchial to democratic republic and then soviet state and finally presidential republic at the end of 20th century on the other hand are treated as democratic movements. in this regard, crumbling of ex-soviet regime and...

the chechen republic (commonly referred to as chechnya) is a part of vast territory of russian federation that has been a source of contention since collapse of the soviet :union:. identity elements and tattered cultural bonds have strained ties between two nations of chechnya and russia. various aspects of crisis in chechnya have been addressed by many theoretical approaches of international r...

V. Avetisov, A. Gorsky, S. Maslov, S. Nechaev, and O. Valba N.N. Semenov Institute of Chemical Physics of the Russian Academy of Sciences, 119991, Moscow, Russia, Department of Applied Mathematics, National Research University Higher School of Economics, 101000, Moscow, Russia, Institute of Information Transmission Problems of the Russian Academy of Sciences, Moscow, Russia, Moscow Institute of...

A new algorithm for mesh simplification with triangle constriction is presented in this paper. Constricting error defined by a combination of square volume error variation with constraint (SVEC), shape factor and normal constraint factor of triangle. Gauss curvature factor of each constricted triangle is used to distinguish strong feature triangle or nonstrong feature triangle. The triangle whi...

Informal Economy in Russia: A Brief Overview by Svetlana Barsukova and Vadim Radaev_4 How the Law Really Works: The New Sociology of Law in Russia by Aryna Dzmitryieva_13 Commercialization of Police and Shadow Economy: The Russian Case by Leonid Kosals and Anastasia Dubova_21 Informal Employment in Russia: Why is it so Sustainable? by Tatiana Karabchuk_29 Freelancers in Russia: Remote Work Patt...

Victor A. TARASOV, Professor, Head of the Department of Thoracic Surgery, Medical Academy of Postgraduate Education, St.Petersburg, Russia Evgeny S. POBEGALOV, Associate Professor, Department of Thoracic Surgery, Medical Academy of Postgraduate Education, St.Petersburg, Russia Vladimir V. STAVROVIETSKIY, Chief of the Thoracic Surgery Unit, Municipal Hospital No. 26, St.Petersburg, Russia Yuriy ...

To visualize the structure of Iranian chemistry scientific publications in SciSearch, 43 Iranian and International chemists were identified. They were the highly cited scientists in 7682 Iranian chemistry publications (defined as an article with at least one Iranian author address) indexed in Science Citation Index during the period from 1990 to 2006. Co-citation data for these authors from the...