A general Definition of Convergence, Continuity, Differentiability and Integrability.
A nowhere differentiable and except on a denumerable set everywhere continuous function
On the Solution of an Arbitrary System of Linear Equations.
On the Solution of Simultaneous First Order Implicit Differential Equations.
Correction to: On the solution of simultaneous first order implicit differential equations. Math. Ann. 137. 9?16 (1959).
Some generalized Sheffer functions.
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