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Displaying 421 – 440 of 882

On nowhere density of the class of somewhat continuous functions in $M (X)$

Tibor Šalát (1978)

Časopis pro pěstování matematiky

On nowhere weakly symmetric functions and functions with two-element range

Krzysztof Ciesielski, Kandasamy Muthuvel, Andrzej Nowik (2001)

Fundamenta Mathematicae

A function f: ℝ → {0,1} is weakly symmetric (resp. weakly symmetrically continuous) at x ∈ ℝ provided there is a sequence hₙ → 0 such that f(x+hₙ) = f(x-hₙ) = f(x) (resp. f(x+hₙ) = f(x-hₙ)) for every n. We characterize the sets S(f) of all points at which f fails to be weakly symmetrically continuous and show that f must be weakly symmetric at some x ∈ ℝ∖S(f). In particular, there is no f: ℝ → {0,1} which is nowhere weakly symmetric. It is also shown that if at each point x we...

On nuclear maps between spaces of ultradiferentiables jets of Roumieu type.

Jean Schmets, Manuel Valdivia (2003)

RACSAM

Si K es un compacto no vacío en Rr, damos una condición suficiente para que la inyección canónica de ε{M},b(K) en ε{M},d(K) sea nuclear. Consideramos el caso mixto y obtenemos la existencia de un operador de extensión nuclear de ε{M1}(F)A en ε{M2}(Rr)D donde F es un subconjunto cerrado propio de Rr y A y D son discos de Banach adecuados. Finalmente aplicamos este último resultado al caso Borel, es decir cuando F = {0}.

On Oleck-Opial-Beesack-Troy integro-differential inequalities.

Bravyi, Evgeniy I., Gusarenko, Sergey S. (2004)

Electronic Journal of Differential Equations (EJDE) [electronic only]

On one class of operators associated with differential equations of fractional order.

Aleroev, T.S. (2005)

Sibirskij Matematicheskij Zhurnal

On one of H. Alzer's problems.

Wu, Yu-Dong (2006)

JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only]

On one-sided BMO and Lipschitz functions

Hugo Aimar, Raquel Crescimbeni (1998)

Annali della Scuola Normale Superiore di Pisa - Classe di Scienze

On open problems of F. Qi.

Belaidi, Benharrat, El Farissi, Abdallah, Latreuch, Zinelaâbidine (2009)

JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only]

On Opial-type inequalities in two varaiables.

Wing-Sum Cheung (1989)

Aequationes mathematicae

On Opial-type integral inequalities.

Cheung, Wing-Sum, Zhao, Chang-Jian (2007)

Journal of Inequalities and Applications [electronic only]

On ordinary differentiability of Bessel potentials

Tord Sjödin (1984)

Annales Polonici Mathematici

On Ostrowski-Grüss-Čebyšev type inequalities for functions whose modulus of derivatives are convex.

Pachpatte, B.G. (2005)

JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only]

On Ostrowski-type inequalities for higher-order partial derivatives.

Changjian, Zhao, Cheung, Wing-Sum (2010)

Journal of Inequalities and Applications [electronic only]

On overdetermined Hardy inequalities

Alois Kufner, Herbert Leinfelder (1998)

Mathematica Bohemica

Necessary and sufficient condition on the weights will be derived under which a $k$ -th order Hardy inequality holds on classes of functions satisfying more than $k$ “boundary” conditions.

On Ozeki's inequality.

Izumino, Saichi, Mori, Hideo, Seo, Yuki (1998)

Journal of Inequalities and Applications [electronic only]

On Ozeki’s inequality for power sums

Horst Alzer (2000)

Czechoslovak Mathematical Journal

Let $p \in (0, 1)$ be a real number and let $n \geq 2$ be an even integer. We determine the largest value $c_{n} (p)$ such that the inequality $\sum_{i = 1}^{n} {| a_{i} |}^{p} \geq c_{n} (p)$ holds for all real numbers $a_{1}, ..., a_{n}$ which are pairwise distinct and satisfy ${min}_{i \neq j} | a_{i} - a_{j} | = 1$ . Our theorem completes results of Ozeki, Mitrinović-Kalajdžić, and Russell, who found the optimal value $c_{n} (p)$ in the case $p > 0$ and $n$ odd, and in the case $p \geq 1$ and $n$ even.

On Pawlak's problem concerning entropy of almost continuous functions

Tomasz Natkaniec, Piotr Szuca (2010)

Colloquium Mathematicae

We prove that if f: → is Darboux and has a point of prime period different from $2^{i}$ , i = 0,1,..., then the entropy of f is positive. On the other hand, for every set A ⊂ ℕ with 1 ∈ A there is an almost continuous (in the sense of Stallings) function f: → with positive entropy for which the set Per(f) of prime periods of all periodic points is equal to A.

Currently displaying 421 – 440 of 882

Previous Page 22 Next

Displaying 421 – 440 of 882

On nowhere density of the class of somewhat continuous functions in $M (X)$

On nowhere weakly symmetric functions and functions with two-element range

On nuclear maps between spaces of ultradiferentiables jets of Roumieu type.

On Oleck-Opial-Beesack-Troy integro-differential inequalities.

On one class of operators associated with differential equations of fractional order.

On one of H. Alzer's problems.

On one-sided BMO and Lipschitz functions

On open problems of F. Qi.

On Opial-type inequalities in two varaiables.

On Opial-type integral inequalities.

On ordinary differentiability of Bessel potentials

On Ostrowski-Grüss-Čebyšev type inequalities for functions whose modulus of derivatives are convex.

On Ostrowski-type inequalities for higher-order partial derivatives.

On overdetermined Hardy inequalities

On Ozeki's inequality.

On Ozeki’s inequality for power sums

On Pawlak's problem concerning entropy of almost continuous functions

On Pečarić-Rajić-Dragomir-type inequalities in normed linear spaces.

On perturbed trapezoid inequalities.

On points of absolute continuity. Functions of several variables

Currently displaying 421 – 440 of 882