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RELATIONS BETWEEN QUATERNIONIC DIFFERENTIAL AND THE CORRESPONDING CAUCHY RIEMANN SYSTEM
강한울,김민지,손광호 영남수학회 2016 East Asian mathematical journal Vol.32 No.3
In this paper, we investigate several properties of quaternionicfunctions. We research some differentials of quaternionic functions, andrelations between the differentials and the corresponding Cauchy Riemannsystem in Clifford analysis.
Several properties of Quaternionic regular functions in Clifford Analysis
강한울,손광호,김민지 호남수학회 2015 호남수학학술지 Vol.37 No.4
In this paper, we research some properties of quaternionic regular functions in Clifford analysis. We investigate the corresponding Cauchy-Riemann system and find regularities of some hypercomplex valued functions.
Relations of L-regular functions on quaternions in Clifford analysis
강한울,손광호 영남수학회 2015 East Asian mathematical journal Vol.31 No.5
In this paper, we provide some properties of several left regular functions in Clifford analysis. We find the corresponding Cauchy-Riemann system and conjugate harmonic functions of the harmonic functions, for each left regular function in the sense of several complex variables. And we investigate certain properties of generalized quaternions in Clifford analysis.
Differentials of the bicomplex functions for each conjugations by the naive approach
강한울,김민지,손광호 호남수학회 2017 호남수학학술지 Vol.39 No.2
In this paper, we aim to compare the differentials with the regularity of the hypercomplex valued functions in Clifford analysis. For three kinds of conjugation of the bicomplex numbers, we define the differentials of the bicomplex number functions by the naive approach. And we investigate some relations of the corresponding Cauchy-Riemann system and the conditions of the differentiable functions in the bicomplex number system.
REGULAR FUNCTIONS FOR DIFFERENT KINDS OF CONJUGATIONS IN THE BICOMPLEX NUMBER FIELD
강한울,정상수,손광호 영남수학회 2016 East Asian mathematical journal Vol.32 No.5
In this paper, using three types of conjugations in a bicomplex number filed T, we provide some basic definitions of bicomplex number and definitions of regular functions for each differential operators. And we investigate the corresponding Cauchy-Riemann systems and the corresponding Cauchy theorems in T in Clifford analysis.
CHARACTERIZATIONS OF SEVERAL SPLIT REGULAR FUNCTIONS ON SPLIT QUATERNION IN CLIFFORD ANALYSIS
강한울,조정영,손광호 영남수학회 2017 East Asian mathematical journal Vol.33 No.3
In this paper, we investigate the regularities of the hyper- complex valued functions of the split quaternion variables. We define several differential operators for the split qunaternionic function. We re- search several left split regular functions for each differential operators. We also investigate split harmonic functions. And we find the correspond- ing Cauchy-Riemann system and the corresponding Cauchy theorem for each regular functions on the split quaternion field.
Derivatives for the linearity of ternary number valued functions
강한울,이광호,손광호 호남수학회 2016 호남수학학술지 Vol.38 No.4
The aim of this paper is to investigate the differentials of the hypercomplex valued functions in Clifford analysis. Like as the differentials defined by the na\"{\i}ve approach in one complex variable analysis, we define the differentials of functions with values in ternary number functions by same ways. And we survey the properties of each differential with respect to a non-commutativity of the skew field.
Scientific Publication Speed of Korean Medical Journals during the COVID-19 Era
서현석,김애찬,김동령,강한울,박찬수,박세진,강준하,오장형,강현성,한미아 대한의료정보학회 2024 Healthcare Informatics Research Vol.30 No.3
Objectives: This study compared the scientific publication speeds of Korean medical journals before and during the coronavirus disease 2019 (COVID-19) era. Methods: We analyzed 2,064 papers from 43 international Korean medical journals, selecting 12 papers annually from 2019 to 2022. We assessed publication speed indicators, including the time from submission to revision and from submission to publication. Additionally, we examined variations in publication speed based on journal and paper characteristics, including whether the studies were related to COVID-19. Results: Among the 43 journals analyzed, 39.5% disclosed the peer review duration from submission to the first decision, and 11.6% reported their acceptance rates. The average time from submission to acceptance was 127.0 days in 2019, 126.1 days in 2020, 124.6 days in 2021, and 126.4 days in 2022. For COVID-19-related studies, the average time from submission to revision was 61.4 days, compared to 105.1 days for non-COVID-19 studies; from submission to acceptance, it was 87.4 days for COVID-19-related studies and 127.1 days for non-COVID-19 studies. All indicators for COVID-19-related studies showed shorter durations than those for non-COVID-19 studies, and the proportion of studies accepted within 30 or 60 days was significantly higher for COVID-19-related studies. Conclusions: This study investigated the publication speed of Korean international medical journals before and during the COVID-19 pandemic. The pandemic influenced journals’ review and publication processes, potentially impacting the quality of academic papers. These findings provide insights into publication speeds during the COVID-19 era, suggesting that journals should focus on maintaining the integrity of their publication and review processes.