TY - JOUR
T1 - Alternative approach to second-order linear differential equations with constant coefficients
AU - Rivera-Figueroa, Antonio
AU - Rivera-Rebolledo, José Manuel
N1 - Publisher Copyright:
© 2014 Taylor & Francis.
PY - 2015/7/4
Y1 - 2015/7/4
N2 - In this paper, we give a straightforward method to solve non-homogeneous second-order linear differential equations with constant coefficients. The advantage of this method is that it does not require the uniqueness and existence theorem of the solution of the problem of initial values. Neither does it require the characterization of the linear independence of solutions by the Wronskian, nor the unnatural method of variation of parameters. As an additional benefit of this method, we obtain a single formula for the general solution, that is, a formula that expresses the general solution independent of the nature of the roots of the characteristic equation, namely it does not matter if the roots are equal or different real numbers or if they are two conjugated complex numbers.
AB - In this paper, we give a straightforward method to solve non-homogeneous second-order linear differential equations with constant coefficients. The advantage of this method is that it does not require the uniqueness and existence theorem of the solution of the problem of initial values. Neither does it require the characterization of the linear independence of solutions by the Wronskian, nor the unnatural method of variation of parameters. As an additional benefit of this method, we obtain a single formula for the general solution, that is, a formula that expresses the general solution independent of the nature of the roots of the characteristic equation, namely it does not matter if the roots are equal or different real numbers or if they are two conjugated complex numbers.
KW - general solution
KW - linear differential equations
KW - method of variation of parameters
UR - http://www.scopus.com/inward/record.url?scp=84929710749&partnerID=8YFLogxK
U2 - 10.1080/0020739X.2014.992988
DO - 10.1080/0020739X.2014.992988
M3 - Artículo
SN - 0020-739X
VL - 46
SP - 765
EP - 775
JO - International Journal of Mathematical Education in Science and Technology
JF - International Journal of Mathematical Education in Science and Technology
IS - 5
ER -