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Selected exact spacetimes in Einstein's gravity
Ryzner, Jiří ; Žofka, Martin (advisor) ; McNutt, David D. (referee) ; Pravdová, Alena (referee)
The aim of this thesis is to construct exact, axially symmetric solutions of Einstein- Maxwell(-dilaton) equations, which possess a discrete translational symmetry along an axis. We present two possible approaches to their construction. The first one is to solve Einstein-Maxwell equations, the second one relies on a dimensional reduction from a higher dimension. We examine the geometry of the solutions, their horizons and singu- larities, motions of charged test particles and compare them. 1
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Autonomous Weapon Systems as the next revolution in warfare and implications of technology deployment for global security
Kvasňovský, Tomáš ; Kučera, Tomáš (advisor) ; Solovyeva, Anzhelika (referee)
This thesis addresses developments in Artificial Intelligence and the increasing trend of robotization and autonomization of military forces in the context of Revolution in Military Affairs. It examines and categorizes different approaches to concepts of AI, autonomy and RMA in the public debate and academic and military literature. It further explores potential impacts and challenges of AI and its weaponized subset - Autonomous Weapon Systems on civil-military relations, legal and ethical norms, arms control regime and general security domain. Building upon findings from previous chapters, AI and AWSs are analyzed in a context of RMA and broader socio-economic context. Specifically, AI-enabled autonomy is compared with aspects of existing remotely controlled systems. The thesis comes to a conclusion that AWSs are harbingers of the next RMA and AI has the potential to match the importance of Neolithic, Industrial and Information revolution.
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Does a Singular Symmetric Interval Matrix Contain a Symmetric Singular Matrix?
Rohn, Jiří
We consider the conjecture formulated in the title concerning existence of a symmetric singular matrix in a singular symmetric interval matrix. We show by means of a counterexample that it is generally not valid, and we prove that it becomes true under an additional assumption of positive semide niteness of the midpoint matrix. The proof is constructive.
Fulltext: content.csg -  PDF
Plný tet: 0505752-av1 - PDF
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The organic and organized
Šarkadyová, Lucie ; Petříček, Miroslav (advisor) ; Kouba, Petr (referee)
Anotation: The diploma thesis Organic and Organized is divided into two parts. The first part is concerned with the relationship between the singular and the general, possibilities of the knowing the singular and its delineation considering the general - with a special attention being paid to medical discourse. A question will be raised whether we can get to know and describe the organic, which is also necessarily singular, which we can't be approached using general rules and laws. Speaking in even more general terms, we should consider the following: if we accept the singularity of the living organism, we should ask what it means for the science which tries to get to know it. The second task of this thesis is to answer (or at least to attempt to answer) the question, what is it that makes the organism singular and henceforth what is the important factor in the process of getting to know this singular. The thesis relies on a detailed reading of those French philosophers (George Canguilhem, Julien Offray de La Mettrie, Claude Bernard) who dedicate their philosophical work to an analysis of the medical science and at the same time are doctors.
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Singular points of algebraic varieties
Vančura, Jiří ; Příhoda, Pavel (advisor) ; Šťovíček, Jan (referee)
This thesis is an introduction to exploring singularities of algebraic varieties. In the first chapter, we state basic definitions and theorems necessary for exploring singularities. Firstly, we define algebraic varieties and their corresponding ideals and explain the term of Krull dimension. We also focus on the local properties of varieties. In the second chapter, we begin by examining the term of singularity in detail and introducing methods for searching for singularities. We prove two theorems about the shape and the dimension of singularities. In the second part, we prove theorems about the zero divisors, which enable us to define Cohen-Macaulay and Gorenstein rings. We use them to roughly classify singularities of algebraic varieties.
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The holy foolishness and other expressions of sub-standard behaviour from the point of view of speech-behaviour tactics Based on Dimitry of Rostov's Chetii Minei
Řoutil, Michal ; Lášek, Jan Blahoslav (advisor) ; Kovačičová, Oľga (referee) ; Milko, Pavel (referee)
The presented thesis deals with the holy foolishness and other expressions of sub- standard behaviour as part of hagiography. It is examined from the point of view of the so-called "singular speech-behaviour tactics" (сингулярные рече-поведенческие тактики) and based on the analysis of texts taken from the most comprehensive corpus of the hagiographic texts written in the Church Slavonic, Dimitry of Rostov's Chetii Minei. The thesis consists of the Introduction, three main chapters, Conclusion and Bibliography. The first chapter focuses on history: it describes relevant works on the Russian hagiographic literature of the 11th-17th centuries concerning the hagiographies of the holy fools, it shows the current state of search in Russia and describes the basic monuments of literature. The second part of this chapter deals with the life and work of a great Russian writer of the turn of the 17th and 18th centuries, Dimitry of Rostov (1651-1709). The second chapter is devoted to the methodological approach used in the thesis, i.e. the singular speech-behaviour tactics as understood by E.M. Vereshchagin and V.G. Kostomarov, who introduced them in the world science. Furthermore, the wider and narrower context of the research carried in this field up to date is shown. In the third chapter, the essential...
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Fingerprint Classification
Kostiha, Martin ; Orság, Filip (referee) ; Drahanský, Martin (advisor)
Automatic identification based on fingerprints requires the input fingerprint to be matched with a large number of fingerprints stored in a database. Fingerprint classification provides an important indexing mechanism in fingerprint databases that reduces the search time and computational complexity. This thesis is dealing with Galton-Henry's classification system. The classification method is based on orientation field and detection singularities using Poinaceré index.
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Fingerprints Generator
Chaloupka, Radek ; Orság, Filip (referee) ; Drahanský, Martin (advisor)
Algorithms for fingerprints recognition are already known for long time and there is also an effort for their best optimization. This master's thesis is dealing with an opposite approach, where the fingerprints are not being recognized, but are generated on the minutiae position basis. Such algorithm is then free of the minutiae detection from image and enhancements of fingerprints. Results of this work are the synthetic images generated according to few given parameters, especially minutiae.
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