• 제목/요약/키워드: Bounded $\phi$-variation

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ON THE FUNCTIONS OF BOUNDED ${\kappa}{\phi}$-VARIATIONS(I)

  • Park, Jae-Keun
    • Journal of applied mathematics & informatics
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    • 제28권1_2호
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    • pp.487-498
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    • 2010
  • For some $\phi$-sequences $\phi_1$, $\phi_2$ and $\phi_3$, and $\kappa$-function $\kappa_1$, $\kappa_2$ and $\kappa_3$ with $\kappa_1^{-1}(x)\kappa_2^{-1}(x)\;{\geq}\;\kappa_3^{-1}(x)$ for $x\;{\geq}\;0$, the Luxemburg norm is lower semi-continuous on ${\kappa}{\phi}BV_0$, and some specialized equivalent conditions are considered.

FUNCTIONS OF $_{K}G_{\phi}$-BOUNDED VARIATIONS

  • Park, Jaekeun;Cho, Seong-Hoon
    • Journal of applied mathematics & informatics
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    • 제13권1_2호
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    • pp.447-455
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    • 2003
  • For some sequnces of monotone nondecreasing convex $\Phi$-functions $\Phi$$_1$, $\Phi$$_2$ and $\Phi$$_3$and $textsc{k}$-functions $textsc{k}$$_1$, $textsc{k}$$_2$ and $textsc{k}$$_3$, we obtain the most general Holder type inequalities, and some special cases are considered for the functions of $textsc{k}$G$\Phi$-bounded variations.

RIEMANN-STIELTJES INTEGRATION OF FUNCTIONS OF $\textsc{k}{\phi}-BOUNDED$ VARIATIONS

  • JAEKEUN PARK
    • Journal of applied mathematics & informatics
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    • 제4권2호
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    • pp.545-553
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    • 1997
  • By using the decreasing rearrangement of nonoverlapping subintervals of a closed bounded intervals and L.C.young's series for two ø-sequences we obtain some results concerning Riemann-Stieltijes integrals of functions of $\textsc{k}{\phi}-bounded$ variations.

GENERALIZED SOLUTIONS OF IMPULSIVE CONTROL SYSTEMS CORRESPONDING TO CONTROLS OF BOUNDED VARIATION

  • Shin, Chang-Eon
    • 대한수학회지
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    • 제34권3호
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    • pp.581-598
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    • 1997
  • This paper is concerned with the impulsive control problem $$ \dot{x}(t) = f(t, x) + g(t, x)\dot{u}(t), t \in [0, T], x(0) = \overline{x}, $$ where u is a possibly discontinuous control function of bounded variation, $f : R \times R^n \mapsto R^n$ is a bounded and Lipschitz continuous function, and $g : R \times R^n \mapsto R^n$ is continuously differentiable w.r.t. the variable x and satisfies $\mid$g(t,\cdot) - g(s,\cdot)$\mid$ \leq \phi(t) - \phi(s)$, for some increasing function $\phi$ and every s < t. We show that the map $u \mapsto x_u$ is Lipschitz continuous when u ranges in the set of step functions whose total variations are uniformly bounded, where $x_u$ is the solution of the impulsive control system corresponding to u. We also define the generalized solution of the impulsive control system corresponding to a measurable control functin of bounded variation.

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$\Phi$-유계 분산의 비단조 퍼지 측도에 관한연구 (On non-monotonic fuzzy measures of $\Phi$-bounded variation)

  • Jang, Lee-Chae;Kwon, Joong-Sung
    • 한국지능시스템학회:학술대회논문집
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    • 한국퍼지및지능시스템학회 1995년도 추계학술대회 학술발표 논문집
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    • pp.314-321
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    • 1995
  • This paper discuss some properties of non-monotonic fuzzy measures of Ф -bounded variation. We show that there is an example of Ф such that $\beta$V(x, F) is a proper subspace of Ф$\beta$V(x, F) And also, we prove that Ф$\beta$V(x, F) is a real Banach space. Furthermore, we investigate some properties of non-monotonic fuzzy Ф -measures.

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ABSOLUTE CONTINUITY OF FUNCTIONS OF ${\phi}{\Lambda}BV$

  • Kim Hwa-Jun
    • Journal of applied mathematics & informatics
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    • 제22권1_2호
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    • pp.557-562
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    • 2006
  • We consider the relationship between absolute continuity for functions of a real variable and absolute continuity of functions of generalized bounded variation. Here, we obtain necessary and sufficient conditions between these two functions.