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Miroslav Langer (2014)
Kybernetika
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Positioned eco-grammar systems (PEG systems, for short) were introduced in our previous papers. In this paper we engage in a new field of research, the hierarchy of PEG systems, namely in the hierarchy of the PEG systems according to the number of agents presented in the environment and according to the number of types of agents in the system.
Daniel Reidenbach, Markus L. Schmid (2014)
Kybernetika
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We introduce and investigate Nondeterministically Bounded Modulo Counter Automata (NBMCA), which are two-way multi-head automata that comprise a constant number of modulo counters, where the counter bounds are nondeterministically guessed, and this is the only element of nondeterminism. NBMCA are tailored to recognising those languages that are characterised by the existence of a specific factorisation of their words, e. g., pattern languages. In this work, we subject NBMCA to a theoretically...
van Leeuwen, Marc A.A. (1998)
Séminaire Lotharingien de Combinatoire [electronic only]
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Marek Rutkowski (1998)
Applicationes Mathematicae
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Recently, there has been a growing interest in optimization problems associated with the arbitrage pricing of derivative securities in imperfect markets (in particular, in models with transaction costs). In this paper, we examine the valuation and hedging of European claims in the multiplicative binomial model proposed by Cox, Ross and Rubinstein [5] (the CRR model), in the presence of proportional transaction costs. We focus on the optimality of replication; in particular, we provide...
Dumont, Dominique (1996)
Séminaire Lotharingien de Combinatoire [electronic only]
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Christian Mauduit, András Sárközy (1997)
Acta Arithmetica
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W. Dwyer, C. Wilkerson (1995)
Fundamenta Mathematicae
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We show that a connected p-compact group with a trivial center is equivalent to a product of simple p-compact groups. More generally, we show that product splittings of any connected p-compact group correspond bijectively to algebraic splittings of the fundamental group of the maximal torus as a module over the Weyl group. These are analogues for p-compact groups of well-known theorems about compact Lie groups.