@article{alpay2020extension,
  title = {On the extension of positive definite kernels to topological algebras},
  author = {Alpay, Daniel and Paiva, Ismael L},
  fjournal = {Journal of Mathematical Physics},
  journal = {J. Math. Phys.},
  volume = {61},
  number = {6},
  pages = {063507},
  year = {2020},
  doi = {10.1063/5.0007301},
  publisher = {AIP Publishing LLC},
  archiveprefix = {arXiv},
  primaryclass = {math.FA},
  arxivid = {2003.05632},
  eprint = {2003.05632}
}