Results 251 to 260 of about 274,031 (283)

On the differentiability of the support function

Journal of Global Optimization, 2012
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The Differentiability of Riemann's Function

Proceedings of the American Mathematical Society, 1972
The functiong(x)= :P%-= (sin 7rp2X/7rp2), thought by Riemann to be nowhere differentiable, is shown to be differentiable only at rational points expressible as the ratio of odd integers. The proof depends on properties of Gaussian sums, and these properties enable us to give a complete discussion of the possible existence of left and right derivatives ...
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Functional differentiation in the hippocampus

Hippocampus, 1998
The hippocampus is critically involved in certain kinds of memory. During memory formation, it may operate as an integrated unit, or isolated parts may be responsible for different functions. Recent evidence suggests that the hippocampus is functionally differentiated along its dorsoventral (septotemporal) axis. The cortical and subcortical connections
M B, Moser, E I, Moser
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On the Sum of Differentiable Functions

Mathematical Proceedings of the Cambridge Philosophical Society, 1962
Ryll-Nardzewski has proposed the following problem (New Scottish Book, no. 119). If fn(x) are continuous, differentiable* functions in a closed finite interval, do there always exist constants cn (no cn = 0) (depending on the ), such that converges and is also a continuous differentiable function?
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The Differentiation of a Composite Function

The Mathematical Gazette, 1971
In a previous issue of the Gazette J. G. Colman gives a formula for the n th derivative of the composite function f[g(x)] , states that this is proved by induction and asks for a more direct and illuminating proof.
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Extension of differentiable functions

1985
If a real function f is differentiable on a perfect subset H of the real line, then f' is Baire 1 on H and f can be extended to R as an everywhere differentiable function. The authors have studied similar questions for functions of several variables.
AVERSA, VINCENZO LIBERO, LACZKOVICH M., PREISS D.   +2 more
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On a Functional Differential Equation

IMA Journal of Applied Mathematics, 1971
Fox, L., Mayers, D. F., Ockendon, J. R., Tayler, A. B.   +3 more
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On the Fractional Differentiability of Functions

Proceedings of the London Mathematical Society, 1965
Stein, Elias M., Zygmund, Antoni
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On the exactness and the convergence of the $$l_{1}$$ exact penalty E-function method for E-differentiable optimization problems

Opsearch, 2023
Tadeusz Antczak, Najeeb Abdulaleem
exaly  

Geometric differentiability of Riemann's non-differentiable function

Advances in Mathematics, 2020
Daniel Eceizabarrena
exaly