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Institution

Romanian Academy

ArchiveBucharest, Romania
About: Romanian Academy is a archive organization based out in Bucharest, Romania. It is known for research contribution in the topics: Population & Nonlinear system. The organization has 3662 authors who have published 10491 publications receiving 146447 citations. The organization is also known as: Academia Română & Societatea Literară Română.


Papers
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Journal ArticleDOI
TL;DR: Complex compounds of copper(II) were synthesized, structurally characterized and tested for biological activity, proving both antibacterial and antiproliferative activity.

85 citations

Book ChapterDOI
01 Jan 1998
TL;DR: From silicon to carbon, from microchips to DNA molecules, the basic idea in DNA computing is to use information processing capabilities of organic molecules in computers to replace digital switching primitives as discussed by the authors.
Abstract: From silicon to carbon. From microchips to DNA molecules. This is the basic idea in DNA computing. Information-processing capabilities of organic molecules can be used in computers to replace digital switching primitives.

85 citations

Journal ArticleDOI
TL;DR: In this article, the authors examined the characteristic indices of laminar deflagrations propagating in methane-air gaseous mixtures diluted by several inert gases: He, Ar, N2 or CO2.

85 citations

Journal ArticleDOI
TL;DR: In this article, an analytic approximate technique, namely Optimal Homotopy Asymptotic Method (OHAM), is employed for non-linear oscillations of planar, flexural large amplitude free vibrations of a slender, inextensible cantilever beam carrying a lumped mass with rotary inertia at an intermediate position along its span.
Abstract: This paper is concerned with analytical treatment of non-linear oscillations of planar, flexural large amplitude free vibrations of a slender, inextensible cantilever beam carrying a lumped mass with rotary inertia at an intermediate position along its span. An analytic approximate technique, namely Optimal Homotopy Asymptotic Method (OHAM) is employed for this purpose. It is proved that OHAM provide accurate solutions for large amplitudes and large modal constants in the considered nonlinear equations, when other classical methods fail. Our procedure provides us with a convenient way to optimally control the convergence of solution, such that the accuracy is always guaranteed. An excellent agreement of the approximate frequencies and periodic solutions with the numerical results and published results has been demonstrated. Two examples are given and the results reveal that this procedure is very effective, simple and accurate. This paper demonstrates the general validity and the great potential of the OHAM for solving strongly nonlinear problems.

85 citations

Journal ArticleDOI
TL;DR: In this paper, the authors elucidate the key role played by formality in the theory of characteristic and resonance varieties, and show that the germs at the origin of V_k and R_k are analytically isomorphic, if the group is 1-formal.
Abstract: We elucidate the key role played by formality in the theory of characteristic and resonance varieties. We define relative characteristic and resonance varieties, V_k and R_k, related to twisted group cohomology with coefficients of arbitrary rank. We show that the germs at the origin of V_k and R_k are analytically isomorphic, if the group is 1-formal; in particular, the tangent cone to V_k at 1 equals R_k. These new obstructions to 1-formality lead to a striking rationality property of the usual resonance varieties. A detailed analysis of the irreducible components of the tangent cone at 1 to the first characteristic variety yields powerful obstructions to realizing a finitely presented group as the fundamental group of a smooth, complex quasi-projective algebraic variety. This sheds new light on a classical problem of J.-P. Serre. Applications to arrangements, configuration spaces, coproducts of groups, and Artin groups are given.

84 citations


Authors

Showing all 3740 results

NameH-indexPapersCitations
Cristina Popescu7428518434
Adrian Covic7357017379
Gheorghe Paun6539918513
Floriana Tuna6027111968
Arto Salomaa5637417706
Jan A. Bergstra5561613436
Alexandru T. Balaban5360514225
Cristian Sminchisescu5317312268
Maya Simionescu4719210608
Marius Andruh462398431
Werner Scheid465189186
Vicenţiu D. Rădulescu463607771
Cornelia Vasile442977108
Irinel Popescu444018448
Mihail Barboiu442395789
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202335
2022113
2021671
2020690
2019704
2018630