Refereed Publications
  • Nina, H.; Flores Callisaya, H.; Pickmann-Soto, H.; Rodriguez, J. Nonnegative Inverse Elementary Divisors Problem for Lists with Nonnegative Real Parts. Mathematics 2020, 8, 1662. https://doi.org/10.3390/math8101662
  • H. Blas, H.F. Callisaya, J.P.R. Campos, Riccati-type pseudo-potentials, conservation laws and solitons of deformed sine-Gordon models, Nuclear Physics B, Volume 950, 2020, 114852, ISSN 0550-3213,
  • BLAS, HAROLD ; CALLISAYA, HECTOR FLORES. Quasi-integrability in deformed sine-Gordon models and infinite towers of conserved charges Communications in Nonlinear Science and Numerical Simulation. 13, pp. 105-126 (2017).
  • E. G. Birgin, L. H. Bustamente, H. F. Callisaya, and J. M. Martínez. Packing Circles within Ellipses. International Transactions in Operations Research 20, pp. 365-389, 2013.