### CONTENTS
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$q$-Dedekind-type Daehee-Changhee sums with weight $\alpha$ associated with modified $q$-Euler polynomials with weight $\alpha$
Jong Jin Seo, Serkan Araci, and Mehmet Acikgoz |
1 |

Remark on the mean value of $L(\frac{1}{2}, \chi)$ in the hyperelliptic ensemble
Hwanyup Jung |
9 |

The Sobolev regularity of solutions of first order nonlinear equations
Seongjoo Kang |
17 |

Lorentzian almost $r$-para-contact structure in tangent bundle
Mohammad Nazrul Islam Khan and Jae-Bok Jun |
29 |

A note on a question related to Kolmogorov forward equation
Joongul Lee |
35 |

Secant varieties to the variety of reducible forms
Yong-Su Shin |
39 |

Weak $C_{k}^{f}$-spaces for maps and their duals
Yeon Soo Yoon |
47 |

On a closed deductive system of a $CS$-algebra
Yong Hoon Lee and Min Surp Rhee |
57 |

Jordan derivations on prime rings and their applications in Banach algebras, II
Byung-Do Kim |
65 |

Existence of solutions in the $\alpha$-norm for neutral differential equations with nonlocal conditions
Sung Kyu Choi, Hyun Ho Jang, Namjip Koo, and Chanmi Yun |
89 |

m-isometric weighted shifts
Jun Ik Lee |
99 |

On an R-E-KKM theorem and its applications
Won Kyu Kim |
105 |

The relation between McShane integral and McShane delta integral
Jae Myung Park, Deok Ho Lee, Ju Han Yoon, Young Kuk
Kim, and Jong Tae Lim |
113 |

Fuzzy stability for a class of quadratic functional equations
Giljun Han |
123 |

A quadraparametric family of eighth-order root-finding methods
Young Ik Kim |
133 |

Portfolio selection with nonnegative wealth constraints: a dynamic programming approach
Yong Hyun Shin |
145 |

Examples of measure expansive systems
Soyean Kim |
151 |

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