“A REGULARIZED TRACE OF A TWO-FOLD DIFFERENTIATION OPERATOR WITH NON-LOCAL MATCHING CONDITIONS ON A STAR GRAPH WITH ARCS OF THE SAME LENGTH” (2025) ҚазҰУ Хабаршысы. Математика, механика, информатика сериясы, 126(2). doi:10.26577/JMMCS2025126203.