연구성과로 돌아가기
2023 연구성과 (201 / 285)
※ 컨트롤 + 클릭으로 열별 다중 정렬 가능합니다.
Excel 다운로드
| WoS | SCOPUS | Document Type | Document Title | Abstract | Authors | Affiliation | ResearcherID (WoS) | AuthorsID (SCOPUS) | Author Email(s) | Journal Name | JCR Abbreviation | ISSN | eISSN | Volume | Issue | WoS Edition | WoS Category | JCR Year | IF | JCR (%) | FWCI | FWCI Update Date | WoS Citation | SCOPUS Citation | Keywords (WoS) | KeywordsPlus (WoS) | Keywords (SCOPUS) | KeywordsPlus (SCOPUS) | Language | Publication Stage | Publication Year | Publication Date | DOI | JCR Link | DOI Link | WOS Link | SCOPUS Link |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ○ | ○ | Article | Detection of deformed wing virus in the greenhouse for possible horizontal transmission of virus in honey bee colony | The honey bee Apis mellifera L. is a crucial insect in the agricultural industry and natural ecosystem by being a major pollinator. Nevertheless, honey bee population has been recently facing a decline. Among the several factors responsible for this decline, deformed wing virus (DWV) is considered a primary cause that negatively affects honey bee health. DWV is a cosmopolitan honey bee pathogen and causes morphological disadvantages in individual honey bees and colony collapse. Regarding the horizontal transmission of DWV, in addition to Varroa destructor, a well-known major vector of DWV, flowers have recently been implied as a transmission route. Therefore, in this study, we detected DWV from various substances, including flowers, honey bee feces, pupa, larva, nurse bee, surface of nurse bee, pollen collected by forager bee, and forager bee samples in four strawberry greenhouses, which could suggest the potential for the horizontal transmission of DWV in the semi-field condition. We also detected DWV in pollen collected by DWV-negative forager bees, implying that flowers can serve as a potential source of virus infection. These findings suggest that the surrounding environment such as shared floral sources affects the spread of DWV. | You, Euijin; Moon, Kyunghwan; Kim, Hyemin; Kim, Young Ho | Kyungpook Natl Univ, Dept Ecol Sci, Sangju, South Korea; Kyungpook Natl Univ, Dept Vector Entomol, Sangju, South Korea; Kyungpook Natl Univ, Res Inst Invertebrate Vector, Sangju, South Korea | Kim, Young/J-5414-2012 | 58723539100; 57202874378; 57965331200; 58516491300 | yhkim05@knu.ac.kr; | ENTOMOLOGICAL RESEARCH | ENTOMOL RES | 1738-2297 | 1748-5967 | 53 | 12 | SCIE | ENTOMOLOGY | 2023 | 1.2 | 53.7 | 0.31 | 2025-06-25 | 1 | 1 | Apis mellifera L; deformed wing virus; flower; horizontal transmission; pollen | APIS-MELLIFERA; PARALYSIS-VIRUS; VERTICAL TRANSMISSION; VARROA-DESTRUCTOR; MITES; QUEENS; VECTOR; DIETS | Apis mellifera L; deformed wing virus; flower; horizontal transmission; pollen | English | 2023 | 2023-12 | 10.1111/1748-5967.12686 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Evaluating quantum yield and ultraviolet-visible reflectance in baby pumpkins: Implications for oviposition behavior of pumpkin fruit flies | Frugivorous insects utilize both olfactory and visual cues to locate their host plants. Although volatiles have been extensively studied for detecting infested fruits, the role of visual cues in oviposition site selection remains mostly unknown among frugivorous insects. To investigate physiological changes in a host plant, we measured the quantum yield and reflectance of three wavelengths of light (350, 450 and 520 nm) after puncturing the surfaces of commercially grown pumpkins using insect pins during two different seasons outdoors. Quantum yields did not show significant differences between undamaged and simulated oviposition sites. Two wavelengths within the visual spectrum were similar between the two treatments. However, photon counts at 350 nm, in the ultraviolet range, were 1.76 fold higher in simulated oviposition sites than in undamaged sites, which was consistently observed across three field seasons. Considering that frugivorous insects and other phytophagous insects recognize the 350 nm wavelength for host identification and oviposition, we conclude that the disparities in ultraviolet reflectance can serve as a baseline for assessing the actual oviposition response of fruit flies. This finding contributes to the role of visual cues in the oviposition behavior of frugivorous insects and the development of a nondestructive detection method for pumpkin fruit flies. | Kim, Seohyun; Kwon, Ohseok; Park, Ikju | Kyungpook Natl Univ, Dept Grad Plant Quarantine, Daegu, South Korea; Kyungpook Natl Univ, Dept Plant Med, Daegu, South Korea; Univ Calif Riverside, Dept Entomol, Riverside, CA USA; Kyungpook Natl Univ, Dept Grad Plant Quarantine, Daegu 41566, South Korea; Univ Calif Riverside, Dept Entomol, Riverside, CA 92521 USA | 58724887200; 56323648400; 57200320797 | ecoento@knu.ac.kr;ikju.park@ucr.edu; | ENTOMOLOGICAL RESEARCH | ENTOMOL RES | 1738-2297 | 1748-5967 | 53 | 11 | SCIE | ENTOMOLOGY | 2023 | 1.2 | 53.7 | 0 | 2025-06-25 | 0 | 0 | plant protection; pumpkin fruit fly; quarantine; ultraviolet | BACTROCERA; FLY | plant protection; pumpkin fruit fly; quarantine; ultraviolet | English | 2023 | 2023-11 | 10.1111/1748-5967.12690 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Host and environmental influences on the gut bacterial community of carabid beetles in distinct paddy fields | The relationship between the gut bacterial communities of carabid beetles and their habitats holds implications for understanding ecological dynamics. This study examined the gut bacterial communities of two carabid beetle species, Chlaenius pallipes and Pheropsophus jessoensis, in terraced and flat paddy fields. Differences in gut bacterial communities were evident at the species level and were based on habitat. Specifically, P. jessoensis had a greater presence of Firmicutes and Proteobacteria in terraced fields but more Actinobacteria in flatland fields. In comparison, C. pallipes consistently showed high levels of Firmicutes in both habitats. These differences were reflected at class and genus levels, emphasizing the role of host specificity in shaping gut microbiota. Alpha diversity metrics indicated that P. jessoensis hosted a more diverse bacterial community than C. pallipes. Terraced fields, however, showed slightly reduced diversity in P. jessoensis, suggesting environmental effects on microbial populations. Beta diversity analysis using Bray-Curtis distances differentiated the bacterial communities of the two beetles. Multivariate analysis of variance reinforced these findings. Insights from the Sloan neutral model indicate that environmental factors predominantly influence bacterial community assembly through stochastic processes. Functionally, metabolism was highlighted, indicating the role of gut bacteria in beetle metabolic processes. Notably, energy metabolism varied between field types, revealing environmental effects on gut bacterial functions. This study offers in-depth insights into interactions between host-specific and environmental factors influencing gut bacterial communities of carabid beetles, contributing to a broader understanding of microbial ecology and the roles of environment and host in microbiota dynamics. | Do, Yuno; Park, Woong-Bae; Park, Jun-Kyu; Park, Siae; Kwon, Ohseok; Choi, Moon Bo | Kongju Natl Univ, Dept Biol Sci, Gongju, South Korea; Kyungpook Natl Univ, Dept Plant Protect & Quarantine, Daegu, South Korea; Kyungpook Natl Univ, Inst Plant Med, Daegu, South Korea; Wild Beei, Dept R&D, Chilgok, South Korea | Park, Junkyu/AAE-1509-2020 | 52163435800; 57537588500; 57216365592; 58706065600; 56323648400; 51863232400 | ecoento@knu.ac.kr;kosinchoi@hanmail.net; | ENTOMOLOGICAL RESEARCH | ENTOMOL RES | 1738-2297 | 1748-5967 | 53 | 11 | SCIE | ENTOMOLOGY | 2023 | 1.2 | 53.7 | 1.23 | 2025-06-25 | 4 | 4 | Chlaenius pallipes; gut bacterial communities; Pheropsophus jessoensis; paddy fields; Sloan neutral model | MICROBIOME; DIVERSITY; INSECTS; HABITAT; DIET | Chlaenius pallipes; gut bacterial communities; paddy fields; Pheropsophus jessoensis; Sloan neutral model | English | 2023 | 2023-11 | 10.1111/1748-5967.12684 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Multiplex PCR assay for identifying five species of chigger mites in the Republic of Korea | Chigger mites (Trombiculidae), which are known vectors of Orientia tsutsugamushi, have significantly fewer molecular data available than other known species, with a focus on morphological species identification rather than molecular species identification. However, chigger mites are easily damaged because of small size. In addition, natural variation and adult similarity would interrupt accurate classification and identification. Therefore, in this study, a multiple polymerase chain reaction (PCR) method using the internal transcribed spacer (ITS) region of five frequently occurring species (Euschoengastia koreaensis, Leptotrombidium orientale, Leptotrombidium pallidum, Leptotrombidium palpale, and Leptotrombidium scutellare) among eight species known to mediate the spread of is presented. This is the first report using molecular species identification for the classification method of chigger mites, which was only possible with morphological species identification, and is expected to be used as basic data for vector surveillance. | Lee, Hyeon Seung; Choi, Kwang Shik | Kyungpook Natl Univ, Coll Nat Sci, Sch Life Sci, Daegu 41566, South Korea; Kyungpook Natl Univ, Res Inst Phylogen & Evolut, Daegu, South Korea | Lee, Seunghwan/E-4992-2011 | 57225171629; 36602283400 | ksc@knu.ac.kr; | ENTOMOLOGICAL RESEARCH | ENTOMOL RES | 1738-2297 | 1748-5967 | 53 | 9 | SCIE | ENTOMOLOGY | 2023 | 1.2 | 53.7 | 0 | 2025-06-25 | 0 | 0 | chigger mite; ITS; multiplex PCR; Orientia tsutsugamushi | SCRUB TYPHUS; ACARI; TROMBICULIDAE | chigger mite; ITS; multiplex PCR; Orientia tsutsugamushi | English | 2023 | 2023-09 | 10.1111/1748-5967.12668 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Reference gene selection for normalizing gene expression using quantitative real-time PCR in Haemaphysalis longicornis | The Asian longhorned tick, Haemaphysalis longicornis, the dominant species of Ixodidae in Korea, has a wide distribution in East Asia, far-East Russia, and Western Pacific countries, and has recently been discovered in the Eastern states of the United States of America. H. longicornis transmits various pathogens, including Babesia ovate, Rickettsia japonica, and severe fever with thrombocytopenia syndrome virus (SFTSV). Considering its medical importance, in order to understand the physiology of H. longicornis, it is crucial to determine the expression of the genes of interest. Although quantitative real-time PCR (qRT-PCR) has been widely used to analyze gene expression, stably-expressed internal reference genes across samples of different conditions should be selected for the accurate normalization of target gene expression levels. Therefore, in this study, we investigated the expression levels of five candidate reference genes, namely ACT, RPP0, RPL23, TUB, and GAPDH, in H. longicornis under different conditions, including different collection months, developmental stages, and SFTSV infection status. Using four software programs, namely, NormFinder, BestKeeper, geNorm, and RefFinder, their expression stabilities were evaluated. Subsequently, a single gene between RPL23 and RPP0 was validated, which was found to be most stable reference gene after comparing the expression levels of HSP70 determined using different normalization methods. | Park, Ye Eun; Kim, YeongHo; Goh, Gyuhyeong; Lee, Si Hyeock; Choi, Kwang Shik; Kim, Young Ho | Kyungpook Natl Univ, Dept Vector Entomol, Sangju, Gyeongbuk, South Korea; Kyungpook Natl Univ, Dept Ecol Sci, Sangju, Gyeongbuk, South Korea; Kansas State Univ, Dept Stat, Manhattan, KS USA; Seoul Natl Univ, Dept Agr Biotechnol, Seoul, South Korea; Kyungpook Natl Univ, Sch Life Sci, Daegu, South Korea; Kyungpook Natl Univ, Res Inst Invertebrate Vector, Sangju, Gyeongbuk, South Korea; Kyungpook Natl Univ, Coll Ecol & Environm Sci, Dept Ecol Sci, Sangju 37224, Gyeongbuk, South Korea | Lee, Sang/R-7470-2019; Kim, Young/J-5414-2012 | 57271718700; 57204608118; 55964615700; 34872664900; 36602283400; 58516491300 | yhkim05@knu.ac.kr; | ENTOMOLOGICAL RESEARCH | ENTOMOL RES | 1738-2297 | 1748-5967 | 53 | 1 | SCIE | ENTOMOLOGY | 2023 | 1.2 | 53.7 | 0.61 | 2025-06-25 | 2 | 2 | Developmental stage; Haemaphysalis longicornis; Month; Quantitative real-time PCR; Reference gene; Severe fever with thrombocytopenia syndrome virus | REPUBLIC-OF-KOREA; POLYMERASE-CHAIN-REACTION; THROMBOCYTOPENIA SYNDROME; SEVERE FEVER; NEW-ZEALAND; DROSOPHILA-MELANOGASTER; TICK SURVEILLANCE; HARD TICK; IXODIDAE; JAPAN | Developmental stage; Haemaphysalis longicornis; Month; Quantitative real-time PCR; Reference gene; Severe fever with thrombocytopenia syndrome virus | English | 2023 | 2023-01 | 10.1111/1748-5967.12630 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Seasonal heavy metal effects on detoxification and antioxidant gene expression in the urban honeybee | Environmental pollutants are associated with honeybee colony losses and may show seasonal concentration variations with respect to the environment and plants. In this study, we examined arsenic (As), lead (Pb), and mercury (Hg) seasonal variations in honey and honeybees in urban areas. Seasonal trends in detoxification (CYP9Q1, CYP9Q2, and CYP9Q3) and antioxidant genes encoding catalase (CAT) and superoxide dismutase (SOD1) were also determined in honeybees. Accordingly, As, Pb, and Hg concentrations were significantly increased in summer in both honey and honeybee samples when compared with other seasons. Similarly, the expression level of CYP9Q1, CYP9Q2, CYP9Q3, SOD1, and CAT showed a significant increase in summer honeybees. This increased expression level particularly in summer honeybees indicating an increased summer honeybee exposure and adaptive oxidative stress responses to environmental pollutants, including heavy metals due to increased flight activity when compared with other seasons. Thus, active season honeybees were subjected to environmental oxidative and detoxification stressors when exposed to environmental pollutants, including heavy metals. | Gizaw, Gashawbeza; Kim, Yeongho; Moon, Kyunghwan; Choi, Jong Bong; Mwamula, Abraham; Lee, Dong Woon; Kim, Young Ho; Park, Jong Kyun | Arsi Univ, Sch Agr & Environm Sci, Dept Nat Resource Management, Assela, Ethiopia; Kyungpook Natl Univ, Dept Ecol Sci, Sangju, Gyeongbuk, South Korea; Kyungpook Natl Univ, Dept Vector Entomol, Sangju, Gyeongbuk, South Korea; Kyungpook Natl Univ, Res Inst Invertebrate Vector, Sangju, Gyeongbuk, South Korea; Kyungpook Natl Univ, Dept Ecol Sci, Sangju 37224, South Korea | Kim, Young/J-5414-2012 | 57216522597; 57204608118; 57202874378; 57193335227; 56786549100; 7406669991; 58516491300; 37661967000 | yhkim05@knu.ac.kr;entopark@knu.ac.kr; | ENTOMOLOGICAL RESEARCH | ENTOMOL RES | 1738-2297 | 1748-5967 | 53 | 12 | SCIE | ENTOMOLOGY | 2023 | 1.2 | 53.7 | 0 | 2025-06-25 | 0 | 0 | antioxidant pathways; detoxification; heavy metals; pollution exposure | APIS-MELLIFERA; BEE; IDENTIFICATION; METABOLISM; BIOMARKERS; POLLUTION; CATALASE; ENZYMES | antioxidant pathways; detoxification; heavy metals; pollution exposure | English | 2023 | 2023-12 | 10.1111/1748-5967.12691 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Validation of reference genes for quantitative real-time polymerase chain reaction assay of honeybee under various pesticide treatment conditions | In quantitative real-time polymerase chain reaction (qRT-PCR), target gene expression levels are normalized to internal reference gene(s) that are stably expressed across different conditions to determine whether they are up- or down-regulated. Therefore, it is essential to select appropriate reference gene(s) for the accurate comparison of target gene expression across different experimental conditions. Honeybee colonies can be damaged due to pesticide exposure, resulting in a decline of their population. Determination of gene expression levels is important for understanding the physiological response of honeybees to pesticide exposure. Therefore, in this study, we used qRT-PCR to analyze the expression stability of five candidate reference genes (RPS5, RPS18, GAPDH, ARF1, and RAB1a) in honeybees subjected to treatment with different dosages and exposure durations of seven pesticides (acetamiprid, imidacloprid, flupyradifurone, fenitrothion, carbaryl, amitraz, and bifenthrin) using four programs (geNorm, NormFinder, BestKeeper, and RefFinder). Subsequently, the expression levels of the target genes (PER, FOR, and EGR1) were calculated using different normalization methods and compared. Based on our collective results, we propose RPS5 as the most appropriate reference gene for the normalization of target gene expression levels in qRT-PCR assays for honeybees under various conditions of pesticide exposure, including pesticide type, exposure duration, and concentration. | Kim, YeongHo; Cha, JooHeon; Kim, Hyemin; Lee, Si Hyeock; Kim, Young Ho | Kyungpook Natl Univ, Dept Ecol Sci, Sangju 37224, Gyeongbuk, South Korea; Kyungpook Natl Univ, Dept Vector Entomol, Sangju, Gyeongbuk, South Korea; Kyungpook Natl Univ, Dept Appl Biol, Sangju, Gyeongbuk, South Korea; Seoul Natl Univ, Dept Agr Biotechnol, Seoul, South Korea; Kyungpook Natl Univ, Res Inst Invertebrate Vector, Sangju, Gyeongbuk, South Korea | Kim, Young/J-5414-2012; Lee, Sang/R-7470-2019 | 57204608118; 57965439100; 57965331200; 34872664900; 58516491300 | yhkim05@knu.ac.kr; | ENTOMOLOGICAL RESEARCH | ENTOMOL RES | 1738-2297 | 1748-5967 | 53 | 2 | SCIE | ENTOMOLOGY | 2023 | 1.2 | 53.7 | 0.61 | 2025-06-25 | 2 | 2 | expression level; honeybee; pesticides; qRT-PCR; reference gene | DROSOPHILA-MELANOGASTER; EXPRESSION; PCR; BEE; IDENTIFICATION; STABILITY; SELECTION; EXPOSURE | expression level; honeybee; pesticides; qRT-PCR; reference gene | English | 2023 | 2023-02 | 10.1111/1748-5967.12634 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | AN EXTENSION OF SCHNEIDER'S CHARACTERIZATION THEOREM FOR ELLIPSOIDS | Suppose that M is a strictly convex hypersurface in the (n + 1)-dimensional Euclidean space En+1 with the origin o in its convex side and with the outward unit normal N. For a fixed point p & ISIN; M and a positive constant t, we put (13t the hyperplane parallel to the tangent hyperplane (13 at p and passing through the point q = p- tN(p). We con-sider the region cut from M by the parallel hyperplane (13t, and denote by Ip(t) the (n + 1)-dimensional volume of the convex hull of the region and the origin o. Then Schneider's characterization theorem for ellip-soids states that among centrally symmetric, strictly convex and closed surfaces in the 3-dimensional Euclidean space E3, the ellipsoids are the only ones satisfying Ip(t) = & phi;(p)t, where & phi; is a function defined on M. Recently, the characterization theorem was extended to centrally sym-metric, strictly convex and closed hypersurfaces in En+1 satisfying for a constant & beta;, Ip(t) = & phi;(p)t & beta;. In this paper, we study the volume Ip(t) of a strictly convex and complete hypersurface in En+1 with the origin o in its convex side. As a result, first of all we extend the characterization theorem to strictly convex and closed (not necessarily centrally symmetric) hypersurfaces in En+1 satisfying Ip(t) = & phi;(p)t & beta;. After that we generalize the character-ization theorem to strictly convex and complete (not necessarily closed) hypersurfaces in En+1 satisfying Ip(t) = & phi;(p)t & beta;. | Kim, Dong-Soo; Kim, Young Ho | Chonnam Natl Univ, Dept Math, Gwangju 61186, South Korea; Kyungpook Natl Univ, Dept Math, Daegu 41566, South Korea | 57203012638; 57215211825 | dosokim@chonnam.ac.kr;yhkim@knu.ac.kr; | BULLETIN OF THE KOREAN MATHEMATICAL SOCIETY | B KOREAN MATH SOC | 1015-8634 | 60 | 4 | SCIE | MATHEMATICS | 2023 | 0.6 | 53.8 | 0 | 2025-06-25 | 0 | 0 | Ellipsoid; volume; cone; strictly convex; hypersurface; Gauss-Kronecker curvature | SPHERES | cone; Ellipsoid; Gauss-Kronecker curvature; hypersurface; strictly convex; volume | English | 2023 | 2023-07 | 10.4134/bkms.b220393 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Criteria for Algebraic Operators to be Unitary | By the spectral theorem, a unitary operator with a finite spectrum is algebraic and its spectrum is contained in T, the unit circle centered at 0. The most fundamental example of a unitary algebraic operator is the Fourier transform. According to the famous theorem of Plancherel, the Fourier transform extends uniquely to a unitary operator on L2(R) (see e.g., [18, Theorem IX.6]). Denote it by ". The Fourier transform has the following properties: | Jablonski, Zenon Jan; Stochel, Jan; Jung, Il Bong | Uniwersytet Jagiellonski, Inst Matematyki, Ul Lojasiewicza 6, PL-30348 Krakow, Poland; Kyungpook Natl Univ, Dept Math, Daegu 41566, South Korea | 6602624635; 6602273956; 7102964485 | Zenon.Jablonski@im.uj.edu.pl;Jan.Stochel@im.uj.edu.pl;ibjung@knu.ac.kr; | KYUNGPOOK MATHEMATICAL JOURNAL | KYUNGPOOK MATH J | 1225-6951 | 0454-8124 | 63 | 1 | ESCI | MATHEMATICS | 2023 | 0.6 | 53.8 | 0.91 | 2025-06-25 | 3 | 3 | Secondary Key words and phrases; Algebraic operator; unitary operator; normaloid operator; strong stability | M-ISOMETRIC TRANSFORMATIONS | Algebraic operator; normaloid operator; strong stability; unitary operator | English | 2023 | 2023-03 | 10.5666/kmj.2022.63.1.1 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Cyclic Structure Jacobi Semi-symmetric Real Hypersurfaces in the Complex Hyperbolic Quadric | In this paper, we introduce the notion of cyclic structure Jacobi semi symmetric real hypersurfaces in the complex hyperbolic quadric Qm* = SO02,m/SO2SOm. We give a classifiction of when real hypersurfaces in the complex hyperbolic quadric Qm* having 2t-principal or 2t-isotropic unit normal vector fields have cyclic structure Jacobi semi-symmetric tensor. | Jeong, Imsoon; Suh, Young Jin | Cheongju Univ, Dept Math Educ, Chungcheongbuk Do 28503, South Korea; Kyungpook Natl Univ, Dept Math, Daegu 41566, South Korea; Kyungpook Natl Univ, RIRCM, Daegu 41566, South Korea | 24461853600; 7202260479 | isjeong@cju.ac.kr;yjsuh@knu.ac.kr; | KYUNGPOOK MATHEMATICAL JOURNAL | KYUNGPOOK MATH J | 1225-6951 | 0454-8124 | 63 | 2 | ESCI | MATHEMATICS | 2023 | 0.6 | 53.8 | 0 | 2025-06-25 | 0 | 0 | cyclic Ricci semi-symmetric; 2t-isotropic; 2t-principal; Kahler structure; complex conjugation; complex quadric | EINSTEIN HYPERSURFACES; SPACE; OPERATOR | A-isotropic; A-principal; complex conjugation; complex quadric; cyclic Ricci semi-symmetric; Kähler structure | English | 2023 | 2023-06 | 10.5666/kmj.2023.63.2.287 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | DOUBLE LINES IN THE QUINTIC DEL PEZZO FOURFOLD | Let Y be the quintic del Pezzo 4-fold defined by the linear section of Gr(2, 5) by P7. In this paper, we describe the locus of double lines in the Hilbert scheme of coincs in Y. As a corollary, we obtain the desigularized model of the moduli space of stable maps of degree 2 in Y. We also compute the intersection Poincare & PRIME; polynomial of the stable map space. | Chung, Kiryong | Kyungpook Natl Univ, Dept Math Educ, Daegu 41566, South Korea | 47061194800 | krchung@knu.ac.kr; | BULLETIN OF THE KOREAN MATHEMATICAL SOCIETY | B KOREAN MATH SOC | 1015-8634 | 60 | 2 | SCIE | MATHEMATICS | 2023 | 0.6 | 53.8 | 0.8 | 2025-06-25 | 2 | 2 | Rational curves; Fano variety; desingularization; intersection cohomology | RATIONAL CURVES; MODULI SPACES | desingularization; Fano variety; intersection cohomology; Rational curves | English | 2023 | 2023 | 10.4134/bkms.b220238 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Eakin-Nagata-Eisenbud Theorem for Right S-Noetherian Rings | The Eakin-Nagata theorem examines the condition that the Noetherian property passes through each other between subrings and extension rings in 1968. Later, a noncommutative version of Eakin-Nagata theorem was also proved. Lam called this version Eakin-Nagata-Eisenbud theorem. In addition, Anderson and Dumitrescu introduced the S-Noetherian concept which is an extended notion of the Noetherian property on commutative rings in 2002. In this paper, we consider the S-variant of Eakin-Nagata-Eisenbud theorem for general rings by using S-Noetherian modules. We also show that every right S-Noetherian domain is right Ore, which is embedded into a division ring. For a right S-Noetherian ring, we obtain sufficient conditions for its right ring of fractions to be right S-Noetherian or right Noetherian. As applications, the S-variant of Eakin-Nagata-Eisenbud theorem is applied to the composite polynomial, composite power series and composite skew polynomial rings. | Lee, Gangyong; Baeck, Jongwook; Lim, Jung Wook | Chungnam Natl Univ, Dept Math Educ, Daejeon 34134, South Korea; Hanbat Natl Univ, Sch Bas Sci, Daejeon 34158, South Korea; Kyungpook Natl Univ, Coll Nat Sci, Dept Math, Daegu 41566, South Korea | Baeck, Jongwook/AHB-2096-2022 | 54879832500; 57192100589; 35766755400 | lgy999@cnu.ac.kr;jubaik@hanbat.ac.kr;jwlim@knu.ac.kr; | TAIWANESE JOURNAL OF MATHEMATICS | TAIWAN J MATH | 1027-5487 | 2224-6851 | 27 | 2 | SCIE | MATHEMATICS | 2023 | 0.6 | 53.8 | 1.61 | 2025-06-25 | 4 | 4 | S-Noetherian ring; S-finite; Eakin-Nagata-Eisenbud theorem; Cohen type theorem; composite polynomial ring | Cohen type theo-rem; composite polynomial ring; Eakin–Nagata–Eisenbud theorem; S-finite; S-Noetherian ring | English | 2023 | 2023-04 | 10.11650/tjm/221101 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Ideal Classes and Cappell-Shaneson Homotopy 4-Spheres | Gompf proposed a conjecture on Cappell-Shaneson matrices whose affirmative answer implies that all Cappell-Shaneson homotopy 4-spheres are diffeomorphic to the standard 4-sphere. We study Gompf conjecture on Cappell-Shaneson matrices using various algebraic number theoretic techniques. We find a hidden symmetry between trace n Cappell-Shaneson matrices and trace 5 - n Cappell-Shaneson matrices which was suggested by Gompf experimentally. Using this symmetry, we prove that Gompf conjecture for the trace n case is equivalent to the trace 5 - n case. We confirm Gompf conjecture for the special cases that -64 <= trace <= 69 and corresponding Cappell-Shaneson homotopy 4-spheres are diffeomorphic to the standard 4-sphere. We also give a new infinite family of Cappell-Shaneson spheres which are diffeomorphic to the standard 4-sphere. | Kim, Min Hoon; Yamada, Shohei | Kyungpook Natl Univ, Dept Math Educ, Daegu, South Korea | Kim, Min/AAM-7628-2020 | 57192082019; 57219643863 | minhoonkim@knu.ac.kr;alcyone@yahoo.co.jp; | KYUNGPOOK MATHEMATICAL JOURNAL | KYUNGPOOK MATH J | 1225-6951 | 0454-8124 | 63 | 3 | ESCI | MATHEMATICS | 2023 | 0.6 | 53.8 | 0.6 | 2025-06-25 | 2 | 2 | Cappell-Shaneson homotopy 4-spheres; Ideal class monoids | ANDREWS-CURTIS; SPHERES | Cappell-Shaneson homotopy 4-spheres; Ideal class monoids | English | 2023 | 2023-09 | 10.5666/kmj.2023.63.3.373 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Inner Automorphisms of an Abelian Extension of a Quandle | The inner automorphism groups of quandles are related to the classification problem of quandles. The inner automorphism group of a quandle is generated by inner automorphisms which are presented by columns in the operation table of the quandle.In this paper, we describe inner automorphisms of an abelian extension of a quandle by expressing columns of the operation table of the extended quandle as columns of the operation table of the original quandle. Such a description will be helpful in studying inner automorphism groups of abelian extensions of quandles. | Bae, Yongju; Kim, Byeorhi | Kyungpook Natl Univ, Dept Math, Daegu 41566, South Korea; POSTECH, Ctr Res Topol, Pohang 37673, South Korea | 7201465969; 56883339900 | ybae@knu.ac.kr;byeorhikim@postech.ac.kr; | KYUNGPOOK MATHEMATICAL JOURNAL | KYUNGPOOK MATH J | 1225-6951 | 0454-8124 | 63 | 4 | ESCI | MATHEMATICS | 2023 | 0.6 | 53.8 | 0 | 2025-06-25 | 0 | 0 | Quandle; Quandle 2-co cycle; Abelian extension; Inner automorphism; Cycle presentation | MATRICES | Abelian extension; Cycle presentation; Inner automorphism; Quandle; Quandle 2-cocycle | English | 2023 | 2023-12 | 10.5666/kmj.2023.63.4.709 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Nonslice linear combinations of iterated torus knots | In 1976, Rudolph asked whether algebraic knots are linearly independent in the knot concordance group. We use twisted Blanchfield pairings to answer this question in the affirmative for new large families of algebraic knots. | Conway, Anthony; Kim, Min Hoon; Politarczyk, Wojciech | Max Planck Inst Math, Bonn, Germany; MIT, Cambridge, MA USA; Kyungpook Natl Univ, Dept Math Educ, Daegu, South Korea; Univ Warsaw, Inst Math, Warsaw, Poland | Kim, Min/AAM-7628-2020; Politarczyk, Wojciech/HJA-8373-2022 | 57191667266; 57192082019; 57193740917 | anthonyyconway@gmail.com;minhoonkim@knu.ac.kr;wpolitarczyk@mimuw.edu.pl; | ALGEBRAIC AND GEOMETRIC TOPOLOGY | ALGEBR GEOM TOPOL | 1472-2739 | 23 | 2 | SCIE | MATHEMATICS | 2023 | 0.6 | 53.8 | 0.71 | 2025-06-25 | 2 | 2 | TWISTED BLANCHFIELD PAIRINGS; INVARIANTS | English | 2023 | 2023 | 10.2140/agt.2023.23.765 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
페이지 이동: