@Article{ 
  BisDasGho21,
  author = { Biswas, Nirjan and Das, Ujjal and Ghosh, Mrityunjoy },
  title = { On the optimization of the first weighted eigenvalue },
  journal = { Proc. Roy. Soc. Edinburgh Sect. A },
  year = { 2022 },
  doi = { 10.1017/prm.2022.60 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/6966/ },
  note = { cvgmt preprint}
}