Essays about: "differential evolution"

Showing result 16 - 20 of 52 essays containing the words differential evolution.

  1. 16. Mathematical modelling andsimulation for tumour growth andangiogenesis

    University essay from Karlstads universitet/Institutionen för matematik och datavetenskap (from 2013)

    Author : René Edgardo Luna; [2021]
    Keywords : Multiscale modelling; tumor growth; angiogenesis; agent-based model; variance reduction;

    Abstract : Cancer is a complex illness that affects millions of people every year. Amongst the most frequently encountered variants of this illness are solid tumours. The growth of solid tumours depends on a large number of factors such as oxygen concentration, cell reproduction, cell movement, cell death, and vascular environment. READ MORE

  3. 17. Does Noise Trader Risk Repel Arbitrageurs? Evidence from Chinese A-H Share Premia

    University essay from Handelshögskolan i Stockholm/Institutionen för finansiell ekonomi

    Author : Qing Zhu; Haihui Li; [2020]
    Keywords : noise trader risk; A-H premia; volatility; investor sentiment; limits to arbitrage;

    Abstract : What causes the Chinese A-H share premia puzzle? A-shares enjoy a premium over corresponding H-shares on average by 125%, despite the same rights and dividends. The existing hypotheses such as differential risk, differential demand, liquidity, and asymmetric information cannot successfully account for the great magnitude of inflated A-share prices and are also inconsistent with our sample from 2014-2019. READ MORE

  4. 18. Foreland evolution of Blåisen, Norway, over the course of an ablation season

    University essay from Lunds universitet/Geologiska institutionen

    Author : Alexander Hamilton-Foyn; [2020]
    Keywords : Geomorphological Mapping; Structure from Motion; Glacial Landforms; Ice-Marginal Landforms; Landform Preservation; Hardangerjøkulen; Norway; Earth and Environmental Sciences;

    Abstract : This study presents a detailed investigation into the evolution of sedimentary landforms over an ablation season at Blåisen, an outlet of the Hardangerjøkulen Icecap, Norway. The two visits to Blåisen, one each side of the ablation season, allowed the preservation and evolution of the landforms to be studied. READ MORE

  5. 19. Dissipative Perturbations on LRS Class II Cosmologies Using the 1+1+2 Covariant Split of Spacetime

    University essay from Umeå universitet/Institutionen för fysik

    Author : Philip Semrén; [2020]
    Keywords : ;

    Abstract : By including dissipative fluxes in the description, this thesis extends previous results regarding first order perturbations on homogeneous and hypersurface orthogonal locally rotationally symmetric (LRS) class II cosmologies using the 1 + 1 + 2 covariant split of spacetime. Whereas previous works consider perturbations of perfect fluid type, perturbations pertaining to heat flux and fluid viscosity are here studied with the aim to ascertain their effect on the evolution of the fluid vorticity. READ MORE

  6. 20. Optimizing multigrid smoothers using GLT theory

    University essay from Lunds universitet/Matematik LTH; Lunds universitet/Matematikcentrum

    Author : Denhanh Huynh; [2020]
    Keywords : multigrid; smoothers; GLT; Mathematics and Statistics;

    Abstract : Multigrid algorithms are algorithms used to find numerical solutions to differential equations using a hierarchy of grids of different coarseness. This exploits the fact that short-wavelength components of the solutions converges at a faster rate than the long-wavelength components when using some basic iterative methods, such as the Jacobi method or the Gauss-Seidel method. READ MORE