## Seminars and Colloquium

#### Ha, Joon (National Institute of Health)Applied Math

Pathways to type 2 diabetes with a mathematical model

#### Chun-Hung Liu (Princeton University)Discrete Math

Packing and covering topological minors and immersions

#### Duk-Soon Oh (Rutgers Univ. 수학과)Computational Math Seminar

Adaptive Domain Decomposition Methods for Problems Posed in H(div)

#### Insuk Seo (Mathematics, UC Berkeley)Applied Math

Metastable behavior of the dynamics perturbed by a small random noise

#### Botong Wang (University of Wisconsin-Madison)

Cohomology Jump Loci in Algebraic Geometry

## Conferences and Workshops

#### 위상수학 단기강좌

자연과학동, Room 3433

#### 2016 CMC Distinguished Lecture by Mladen Bestvina

Rm.1501, Natural Sciences B/D E6-1

#### 제14회 Geometric Topology Fair

KAIST 수리과학과

#### 2016 CMC Foundations for Mathematical Challenge -1 (대전CMC)

Rm.3435, Natural Sciences B/D E6-1

## Bookmarks

## Bulletin Boards

2016년 삼성화재 UX/Data Analytics/Deep Learning 분야 경력사원 채용 | 06. 08 | |

(안내)제7회 병렬수치계산 여름학교 개최 | 06. 02 | |

[행사] 제4회 생명물리 여름학교: Information and Energy in Life | 05. 24 | |

(안내)2016 IDEA COOKING | 05. 18 | |

[국가수리과학연구소] 채용 공고 | 05. 18 |

중3 수학 과외 선생님 모십니다. | 04. 06 | |

여학생 과외 원합니다. | 03. 07 | |

고교2학년생입니다. 수학선생님 원해요 | 11. 11 | |

대학원 입시 설명회 자료 좀 올려주시겠어요? | 06. 22 | |

모듈 형식과 타원 방정식에 대해서 질문합니다 | 11. 13 |

## Problem of the week

For a positive integer \( n \), define \( f(n) \) by
\[
f(n) =
\begin{cases}
0 & \text{ if } n \equiv 0 \pmod{5} \\
1 & \text{ if } n \equiv \pm 1 \pmod{5} \\
-1 & \text{ if } n \equiv \pm 2 \pmod{5}
\end{cases}.
\]
Compute the infinite series
\[
\sum_{n=1}^{\infty} \frac{f(n)}{n} = 1 - \frac{1}{2} - \frac{1}{3} + \frac{1}{4} + \frac{1}{6} - \dots.
\]
(This is the last problem of this semester. Thank you.)