Browsing by Title
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Više Autora (Beograd , 1986)[more][less]
URI: http://hdl.handle.net/123456789/3772 Files in this item: 1
MEDJUNARODNE_MATEMATICKE_OLIMPIJADE.pdf ( 9.528Mb ) -
Sadžakov, Sofija; Cvetković, Zorica (ASTRONOMSKA OPSERVATORIJA U BEOGRADU , 2011)[more][less]
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Landau, L. D.; Lifšic, E. M. (Beograd , 1961)[more][less]
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Stojanović, Kosta (Belgrade , 1912)[more][less]
URI: http://hdl.handle.net/123456789/513 Files in this item: 1
KostaStojanovicMehanika1912.pdf ( 8.736Mb ) -
Plavšić, Milan (Beograd , 1988)[more][less]
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Rašković, Danilo (Naučna Knjiga, Beograd , 1972)[more][less]
URI: http://hdl.handle.net/123456789/3777 Files in this item: 1
Mehanika_III_dinamika_R.pdf ( 29.22Mb ) -
Rašković, Danilo (Beograd , 1966)[more][less]
URI: http://hdl.handle.net/123456789/3776 Files in this item: 1
Mehanika_II_kinematika_R.pdf ( 29.91Mb ) -
Smojevar, Ivica (Zagreb , 2007)[more][less]
URI: http://hdl.handle.net/123456789/3820 Files in this item: 1
materijali_mehanika_kompozita.pdf ( 729.2Kb ) -
Matejevič Ogibalov, Pjotr; Anđelić, Tatomir (Beograd , 1975)[more][less]
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Plavšić, Milan (Belgrade , 1975)[more][less]
URI: http://hdl.handle.net/123456789/515 Files in this item: 1
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Trbić, Vasilije (GIP 'KULTURA' BEOGRAD , 1996)[more][less]
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Trbić, Vasilije (GIP 'KULTURA' BEOGRAD , 1996)[more][less]
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Halaši, Ruža (ASTRONOMSKO DRUŠTVO 'NOVI SAD' , 1994)[more][less]
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Lazović, Zlatko (Beograd , 2019)[more][less]
Abstract: In the first section we present the theory on uniform spaces and measures of noncompactness in metric and uniform spaces. Next, we recall the basic concepts and properties of C∗ and W∗-algebras and Hilbert modules over these algebras with some known topologies on Hilbert W∗-module. In the second section we construct a local convex topology on the standard Hilbert module l2(A), such that any compact” operator (i.e., any operator in the norm closure of the linear span of the operators of the form maps bounded sets into totally bounded sets. In the biginning A presents unital W∗-algebra, leter on A presents unital C∗-algebra. The converse is true in the special case where A = B(H) is the full algebra of all bounded linear operators on a Hilbert space H. In the third section we define a measure of noncompactness λ on the standard Hilbert C∗-module l2(A) over a unital C∗-algebra, such that λ(E) = 0 if and only if E is A-precompact (i.e. it is ε-close to a finitely generated projective submodule for any ε > 0) and derive its properties. Further, we consider the known, Kuratowski, Hausdorff and Istratescu measure of noncompactnes on l2(A) regarded as a locally convex space with respect to a suitable topology. We obtain their properties as well as some relationships between them and above introduced measure of noncompactness. In the forth section we generalize the notion of a Fredholm operator to an arbitrary C∗-algebra. Namely, we define finite type elements in an axiomatic way, and also we define a Fredholm type element a as such an element of a given C∗-algebra for which there are finite type elements p and q such that (1−q)a(1−p) is invertible. We derive an index theorem for such operators. In subsection Corollaries we show that many well-known operators are special cases of our theory. Those include: classical Fredholm operators on a Hilbert space, Fredholm operators in the sense of Breuer, Atiyah and Singer on a properly infinite von Neumann algebra, and Fredholm operators on Hilbert C∗-modules over a unital C∗-algebra in the sense of Mishchenko and Fomenko. URI: http://hdl.handle.net/123456789/4819 Files in this item: 1
dr_Zlatko_Lazovic.pdf ( 2.019Mb ) -
Tojagić, Dragana (Beograd , 2016)[more][less]
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Dačić, Miodrag (Astr. Soc. "Rudjer Bošković" , 2004)[more][less]
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Trifunović, Tamara (Beograd , 2015)[more][less]
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Stojković, Andrija (Beograd , 1979)[more][less]
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Kovač, Nataša (Beograd , 2018)[more][less]
Abstract: Dissertation title : Metaheuristic approach for solving one class of optimization problems in transp ort Abstract : Berth Allo cation Problem incorp orates some of the most imp ortant de- cisions that have to b e made in order to achieve maximum e ciency in a p ort. Terminal manager of a p ort has to assign incoming vessels to the available b erths, where they will b e loaded/unloaded in such a way that some ob jective function is optimized. It is well known that even the simpler variants of Berth Allo cation Problem are NP-hard, and thus, metaheuristic approaches are more convenient than exact metho ds, b ecause they provide high quality solutions in reasonable compu- tational time. This study considers two variants of the Berth Allo cation Problem: Minimum Cost Hybrid Berth Allo cationProblem (MCHBAP) and Dynamic Mini- mum Cost Hybrid Berth Allo cationProblem (DMCHBAP), b oth with xed handling times of vessels. Ob jective function to b e minimized consists of the following com- p onents: costs of p ositioning, sp eeding up or waiting of vessels, and tardiness of completion for all vessels. Having in mind that the sp eed of nding high-quality solutions is of crucial imp ortance for designing an e cient and reliable decision supp ort system in container terminal, metaheuristic metho ds represent the natural choice when dealing with MCHBAP and DMCHBAP. This study examines the fol- lowing metaheuristic approaches for b oth typ es of a given problem: two variants of the Bee Colony Optimization (BCO), two variants of the Evolutionary Algorithm (EA), and four variants of Variable Neighb orho o d Search (VNS). All metaheuristics are evaluated and compared against each other and against exact metho ds inte- grated in commercial CPLEX solver on real-life instances from the literature and randomly generated instances of higher dimensions. The analysis of the obtained results shows that on real-life instances all metaheuristics were able to nd optimal solutions in short execution times. Randomly generated instances were out of reach for exact solver due to time or memory limits, while metaheuristics easily provided high-quality solutions in short CPU time in each run. The conducted computational analysis indicates that metaheuristics represent a promising approach for MCHBAP and similar problems in maritime transp ortation. The results presented in this pap er represent a contribution to the elds of combinatorial optimization, op erational research, metaheuristic metho ds, and b erth allo cation problem in the container terminals. URI: http://hdl.handle.net/123456789/4747 Files in this item: 1
N_Kovac-doktorska_disertacija.pdf ( 3.540Mb ) -
Mitrović-Varga, Zorana (MATEMATIČKI FAKULTET UNIVERZITETA U BEOGRADU , 2008)[more][less]
URI: http://hdl.handle.net/123456789/1777 Files in this item: 1
Master rad 28.12.2008.pdf ( 2.297Mb )