On some solvable systems of difference equations with solutions associated to Fibonacci numbers von 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 von Rabago, Julius Fergy Tiongson

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

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

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