scholarly journals Integration of nonperiodic functions of two variables by Fibonacci lattice rules

1994 ◽  
Vol 51 (1) ◽  
pp. 57-70 ◽  
Author(s):  
Harald Niederreiter ◽  
Sloan Ian H.
Keyword(s):  
Lattice Rules ◽  
Functions Of Two Variables ◽  
Fibonacci Lattice

scholarly journals On Generalized Step-Functions and Superposition Operators

2004 ◽  
Vol 11 (4) ◽  
pp. 753-758
Author(s):  
A. Kharazishvili
Keyword(s):  
Step Functions ◽  
Functions Of Two Variables ◽  
Superposition Operators

Abstract For a given σ-ideal of sets, the notion of a generalized stepfunction is introduced and investigated in connection with the problem of sup-measurability of certain functions of two variables, regarded as superposition operators.

On students’ understanding of the differential calculus of functions of two variables

2015 ◽  
Vol 38 ◽  
pp. 57-86 ◽  
Author(s):  
Rafael Martínez-Planell ◽  
Maria Trigueros Gaisman ◽  
Daniel McGee
Keyword(s):  
Differential Calculus ◽  
Functions Of Two Variables
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