On some solvable systems of difference equations with solutions associated to Fibonacci numbers door Halim, Yacine, Rabago, Julius Fergy T.

Shape optimization for Bernoulli free boundary problem via Cea's classical Lagrange method and min-max differentiability of the Lagrangian door Rabago, Julius Fergy Tiongson

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Periodic sequences of numbers in generalized arithmetic and geometric alternate progressions door Rabago, Julius Fergy T.

Short remark on the diophantine equation door Ascaño, Joy P., Rabago, Julius Fergy Tiongson

On second-order linear recurrent homogeneous differential equations with period k door Rabago, Julius Fergy Tiongson