40 citations · 407 across the 63 of their papers we have counts for
8 papers · 1 filter
The nonlinear Schrödinger equation: A mathematical model with its wide-ranging applications
N. Karjanto
The nonlinear Schrödinger equation (NLSE) models the slowly varying envelope dynamics of a weakly nonlinear quasi-monochromatic wave packet in dispersive media. In the context of B…
Active participation and student journal in Confucian heritage culture mathematics classrooms
N. Karjanto
This article discusses an effort to encourage student-instructor interactive engagement through active learning activities during class time. We not only encouraged our students to…
Optimizing students' combinatorial-thinking skill through design-based research
I. R. Ihsan, N. Karjanto
The aim of this study is to construct and compose an instructional design in combinatorial learning, particularly in the concept of counting. A composed design is expected to optim…
Note on wavefront dislocation in surface water waves
N. Karjanto, E. van Groesen
At singular points of a wave field, where the amplitude vanishes, the phase may become singular and wavefront dislocation may occur. In this Letter, we investigate for wave fields…
On physical optics approximation of viscous stratified shear flows
N. Karjanto
We study a mathematical model of a perturbed stratified shear mean flow in the presence of eddy coefficients of turbulent viscosity. We adopt the standard Boussinesq approximation…
Soliton and breather splitting on star graphs from tricrystal Josephson junctions
H. Susanto, N. Karjanto, Zulkarnain +2
We consider the interactions of traveling localized wave solutions with a vertex in a star graph domain that describes multiple Josephson junctions with a common/branch point (i.e.…