Articolul precedent |
Articolul urmator |
161 1 |
Ultima descărcare din IBN: 2023-04-12 15:00 |
SM ISO690:2012 WENKAI, Chen, ZHANG, Hong, GEORGESCU, Paul, LI, Tan, ZHANG, Bing. Off-label use of epidemiological modelling: how to estimate and curtail rumor spreading. In: Conference on Applied and Industrial Mathematics: CAIM 2021, 17-18 septembrie 2021, Iași, România. Chișinău, Republica Moldova: Casa Editorial-Poligrafică „Bons Offices”, 2021, Ediţia a 28-a, p. 24. |
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Conference on Applied and Industrial Mathematics Ediţia a 28-a, 2021 |
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Conferința "Conference on Applied and Industrial Mathematics" Iași, România, Romania, 17-18 septembrie 2021 | ||||||
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Pag. 24-24 | ||||||
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We propose and investigate a model for rumor spreading and control which accounts for di erent attitudes towards rumor spreading and for a distinct type of variable, related to the strength and e ectiveness of rumor inhibiting mechanisms. The control mechanisms essentially amount to budgeting and to adjusting the attitude of spreaders. The existence and stability of the trivial (rumor-free) equilibrium and of the semi-trivial equilibrium are characterized in terms of two threshold parameters which quantify the in uence of both categories of spreaders. The existence of a positive (rumor-prevailing) equilibrium is also established, its stability being discussed with the help of a bifurcation theorem. A nonstandard nite di erence (NSFD) scheme is devised to construct approximate solutions while preserving their positivity, necessary conditions for the existence of the optimal discrete rumor spreading controls being then established. |
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