6533b823fe1ef96bd127f732

RESEARCH PRODUCT

Symmetry reduction of a model in spherical symmetry for benign tumor

Gaetana GambinoA. M. GrecoMaria Carmela Lombardo

subject

Mathematical analysisOdeCircular symmetrySymmetry reductionExpansiveWeak equivalenceMathematics

description

A PDEs system, describing the expansive growth of a benign tumor and the phe- nomenon of encapsulation, is studied via a group analysis approach. A weak equiv- alence classi¯cation is obtained and the original PDEs system is reduced to an ODEs system. Numerical simulations are performed both for ODEs and PDEs, which turn out to be in perfect agreement between each other, showing a realistic enough description of the biological process.

http://hdl.handle.net/10447/5393