Mittag-Leffler, Gösta, (16 March 1846–1927), Professor of Mathematics, University of Stockholm, 1881–1911; Editor of the international mathematical journal, Acta Mathematica; possessor of probably the greatest existing library for mathematics

1860 ◽  
Vol 150 ◽  
pp. 13-42

In the following paper I propose to resume more in detail the subject of a communication made to the Cambridge and Dublin Mathematical Journal (vol. viii. p. 25). The present investigations are restricted to the case of two variables. § 1. The Theory of ∇ and ∇ 1 .


2021 ◽  
Vol 12 (1) ◽  
pp. 249-255
Author(s):  
Sava Grozdev ◽  
◽  
Veselin Nenkov ◽  

Various meaningful generalizations could be obtained after gaining insight into some mathematical assertions from different points of view. Generalizations of two problems from International Mathematical Olympiad papers are shown when the details are combined with the opportunities of the program software „The Geometer’s Sketchpad “ (GSP).


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