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Étudier la conversation pour mieux comprendre le langage
This chapter deals with the linguistic manifestations of conversation. For a long time, linguists have been interested in the levels of oral language (phonology, lexicon, syntax, discourse) separately, particularly based on prepared and non-interactive ...
Laurent Prévot +5 more
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Lie symmetry analysis for generalized short pulse equation
Lie symmetry analysis (LSA) is one of the most common, effective, and estimation-free methods to find the symmetries and solutions of the differential equations (DEs) by following an algorithm.
Zhao Weidong +4 more
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Uniform Polylogarithmic Space Completeness
It is well-known that polylogarithmic space (PolyL for short) does not have complete problems under logarithmic space many-one reductions. Thus, we propose an alternative notion of completeness inspired by the concept of uniformity studied in circuit ...
Flavio Ferrarotti +3 more
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We used the classical Lie symmetry method to study the damped Klein–Gordon equation (Kge) with power law non-linearity utt+α(u)ut=(uβux)x+f(u). We carried out a complete Lie symmetry classification by finding forms for α(u) and f(u).
Fiazuddin D. Zaman +2 more
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Kadomtsev–Petviashvili Hierarchy: Negative Times
The Kadomtsev–Petviashvili equation is known to be the leading term of a semi-infinite hierarchy of integrable equations with evolutions given by times with positive numbers. Here, we introduce new hierarchy directed to negative numbers of times.
Andrei K. Pogrebkov
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The study considers a nonlinear multi-parameter reaction–diffusion system of two Lotka–Volterra-type equations with several delays. It treats both cases of different diffusion coefficients and identical diffusion coefficients.
Andrei D. Polyanin, Alexei I. Zhurov
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As the coronavirus disease 2019 (Covid-19) pandemic evolves globally, we are realising its impact on communities from the disease itself and the measures being taken to limit infection spread. In South Africa (SA), 62 300 adults die annually from alcohol-
Hermann Reuter +4 more
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Reducing off-line to on-line: An example and its applications [PDF]
We study on-line versions of maximum weighted hereditary subgraph problems for which the instance is revealed in two clusters. We focus on the comparison of these on-line problems with their respective off-line versions.
Demange Marc
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ASPECTS REGARDING THE DEVELOPMENTS OF COMPOUND SURFACES
The compound surfaces which form the technical parts of metal woks are very diverse. Their practical production involves solving certain geometrical problems through the methods of descriptive geometry.
Alina Angelica ANGHEL +1 more
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Lie symmetries and reductions via invariant solutions of general short pulse equation
Around 1880, Lie introduced an idea of invariance of the partial differential equation (PDE) under one-parameter Lie group of transformation to find the invariant, similarity, or auto-model solutions.
Muhammad Mobeen Munir +2 more
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