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강정흥 陸軍士官學校 1996 한국군사학논집 Vol.50 No.-
일반적으로, Banach 공간으로서 l_1과 Banach 공간이 아닌 위상 벡터공간으로는 l_p)(0<p<1)가 올림연산자를 찾을 수 있는 공간들이다. 본 연구는 “wL_1가 Banach 공간에서 우주적(Universal)공간이기 때문에 적절한 조건이 주어진다면 올림연산자를 구할 수 없을까” 하는 의문에서 출발하여 다음과 같은 결과를 얻었다. “만약 E가 Banach 공간이고 F가 E의 반사부분 공간이면, 임의의 연산자 T:wL_1(U)→E/F 와 상연산자(quotient map) π: E→E/F에 대하여, π∘T=T를 만족하는 올림연산자(Lifting operator) T:wL_1(U)→E가 존재한다.”
Liftings of absolutely summing operators on $\mathcal{L}_1^\lambda-$ spaces
강정흥 강원경기수학회 2022 한국수학논문집 Vol.30 No.1
In this article, we prove that an absolutely summing operator on $\mathcal{L}_1^{\lambda}$ spaces has a lifting under the conditions that a target Banach space is a quotient of reflexive Banach subspaces.
강정흥,유진철 육군사관학교 화랑대연구소 2011 한국군사학논집 Vol.67 No.1
Korea Military Army (KMA) cadet selection criteria are the 1st level academic exam that is similar to the College Scholastic Ability Test (CSAT),the 2nd level aptitude test (AT: physical examination, fitness assessment, and personal interview), high school grade (HSG), and the CSAT. So far, cadets are finally selected by the total scores of CSAT (80%), HSG (10%), and AT (10%). The purpose of this study is to conduct the following two investigations:1) A mutual correlation analysis among the above-mentioned cadet selection criteria 2) A regression analysis with 11 simulation models to figure out the real contributed ratios of cadet selection criteria compared with the given nominal proportions The mutual correlation analysis showed that all of the cadet selection criteria play decent roles as the bases for recruitment. From the regression analysis, if we take the nominal ratios of CSAT (75%), HSG (10%), and AT (15%), then we can also deduce that the means of the real contributed ratios of the selection criteria are CSAT (70.6%), HSG (6.8%), and AT (22.6%). In consequence, we offered basic information on the selection of students who have the potential to become elite officers by setting an ideal admissiondetermining ratio for the aptitude aspect of applicants.
SEPARABLE REFLEXIVE BANACH SUBLATTICES OF THE BANACH ENVELOPE OF WEAKL1
강정흥 충청수학회 2013 충청수학회지 Vol.26 No.3
We investigate complemented Banach sublattices of the Banach envelope of WeakL1. In particular, the Banach envelope of WeakL1 contains a complemented Banach sublattice that is isometrically isomorphic to a separable re°exive Banach lattice.
Extending and lifting operators on Banach spaces
강정흥 강원경기수학회 2019 한국수학논문집 Vol.27 No.3
In this article, we show that the nuclear operator defined on Banach space has an extending and lifting operator. Also we give new proofs of the well known facts which were given Pelcz\'ynski theorem for complemented subspaces of $\ell_1$ and Lewis and Stegall's theorem for complemented subspaces of $L_1(\mu)$.
안전한 공급망 관리를 위한 국방사이버보호 파트너십 인증 방안 연구
김종화,김용철,김경민,강정흥 한국융합보안학회 2019 융합보안 논문지 Vol.19 No.3
Our military‘s cyberspace is under constant threat from the enemy. These cyber threats are targeted at the information service assets held by the military, and securing the security of the organization's information service assets is critical. However, since Information assets can not be 100% selt-sufficient in any organization as well as the military, acquisition of information assets by the supply chain is an inevitable. Therefor, after reviewing supply chain protection measures to secure the safety of the military supply chain, we proposed a method for securing supply chain companies through the citation of partnership based on the validated trust model. 우리 軍의 사이버 공간은 적들로부터 지속적인 위협을 받고 있다. 이러한 사이버 위협은 軍이 보유하고 있는 정보화 자산 을 대상으로 한 것으로 조직의 정보화 자산에 대한 안전성 확보는 매우 중요하다. 그러나 정보화 자산은 軍 뿐만 아니라 어떠 한 조직도 100% 자급자족할 수는 없기 때문에 공급망에 의한 정보화 자산 획득은 어쩔 수 없는 선택이다. 따라서 군 공급망 에 대한 안전을 확보하기 위해 공급망 보호대책 검토 후, 이를 근거로 공급망 업체를 검증된 신뢰모델 기반의 파트너십 인증 (引證)을 통해 군 공급망 안전을 확보하기 위한 방안을 제시하였다.