Brilliant figures such as Sergey Nikitovich Mergelyan (1928-2008) defined the 20th century as an era for extraordinary ...
Pi Approximation Day 2025: Pi is a special number in mathematics. It shows the relationship between a circle’s circumference (the distance around the circle) and its diameter (the distance across the ...
SIAM Journal on Numerical Analysis, Vol. 54, No. 4 (2016), pp. 2619-2639 (21 pages) We study a discretization technique for the parabolic fractional obstacle problem in bounded domains. The fractional ...
Journal of Computational Mathematics, Vol. 20, No. 3 (May 2002), pp. 277-288 (12 pages) Some superapproximation and ultra-approximation properties in function, gradient and two-order derivative ...