Completely multiplicative functions arising from simple operations. - Vichian Laohakosol; Nittiya Pabhapote (Int. J. Math. Math. Sci., 2004)

Properties of rational arithmetic functions. - Vichian Laohakosol; Nittiya Pabhapote (Int. J. Math. Math. Sci., 2005)

Exact Solutions of Iterative Functional Differential Equations. - Sui Sun Cheng; Sukrawan Talwong; Vichian Laohakosol (Computing, 2006)

Ramanujan sums via generalized Möbius functions and applications. - Vichian Laohakosol; Pattira Ruengsinsub; Nittiya Pabhapote (Int. J. Math. Math. Sci., 2006)

Cauchy's functional equation in restricted complex domains. - Watcharapon Pimsert; Vichian Laohakosol; Sajee Piansakool (Int. J. Math. Math. Sci., 2006)

Two types of explicit continued fractions. - Pakwan Riyapan; Vichian Laohakosol; Tuangrat Chaichana (Period. Math. Hung., 2006)

Independence of continued fractions in the field of Laurent series. - Tuangrat Chaichana; Vichian Laohakosol (Period. Math. Hung., 2007)

A modification of Fitzgerald's characterization of primitive polynomials over a finite field. - Vichian Laohakosol; Umarin Pintoptang (Finite Fields Their Appl., 2008)

Lengths, periods and expansions of elements written with respect to a digit system over Fq[x]. - Vichian Laohakosol; Umarin Pintoptang (Finite Fields Their Appl., 2008)

Positivity of third order linear recurrence sequences. - Vichian Laohakosol; Pinthira Tangsupphathawat (Discret. Appl. Math., 2009)

Engel Series and Cohen-Egyptian Fraction Expansions. - Vichian Laohakosol; Tuangrat Chaichana; Jittinart Rattanamoong; Narakorn Rompurk Kanasri (Int. J. Math. Math. Sci., 2009)

Combinatorial Aspects of the Generalized Euler's Totient. - Nittiya Pabhapote; Vichian Laohakosol (Int. J. Math. Math. Sci., 2010)

Stability of a generalized trigonometric functional equation. - Janyarak Tongsomporn; Vichian Laohakosol; Charinthip Hengkrawit; Patanee Udomkavanich (J. Comput. Appl. Math., 2010)

Consequences of a Factorization Theorem for Generalized Exponential Polynomials with Infinitely Many Integer Zeros. - Ouamporn Phuksuwan; Vichian Laohakosol (Number Theory and Related Fields, 2013)

Generalized Folding Lemmas in the Field of Formal Series and Their Applications. - Jittinart Rattanamoong; Vichian Laohakosol; Tuangrat Chaichana (Integers, 2015)

Minimal Polynomials of Algebraic Cosine Values at Rational Multiples of π. - Pinthira Tangsupphathawat; Vichian Laohakosol (J. Integer Seq., 2016)

Reducibility of Polynomials Over Algebraic Number Fields. - Patiwat Singthongla; Narakorn Rompurk Kanasri; Vichian Laohakosol (Integers, 2017)

Minimal Polynomials of Algebraic Cosine Values, II. - Pinthira Tangsupphathawat; Takao Komatsu; Vichian Laohakosol (J. Integer Seq., 2018)

Complex Cantor Series, Cantor Products and Their Independence. - Takao Komatsu; Vichian Laohakosol; Jittinart Rattanamoong (Integers, 2019)

Closed-form solutions of general second order linear recurrences and applications. - Vichian Laohakosol; Rattiya Meesa; Phiraphat Sutthimat (Discret. Math., 2023)

A unified approach to derive explicit solutions of generalized second-order linear recurrences and applications. - Phiraphat Sutthimat; Vichian Laohakosol; Rattiya Meesa (Discret. Math., 2024)