It sounds obvious, but it is often overlooked:
If you are looking for the textbook itself to verify problem statements: Authorized Reprints : A digital version of the second edition is hosted on home.ustc.edu.cn for educational reference 中国科学技术大学 Alternate Academic Hosts : Another version is available through National Taiwan Normal University Solutions to Problems in Condensed Matter Physics 2 marder condensed matter physics solutions pdf free
The band structure of a solid can be calculated using various methods, such as the tight-binding model or density functional theory (DFT). For example, the band structure of a 1D solid can be calculated using the tight-binding model: It sounds obvious, but it is often overlooked: