鄭青青，女，31歲，博士，中國(guó)石油大學(xué)（北京）講師。2015-2019年就讀于廈門(mén)大學(xué)數(shù)學(xué)科學(xué)系，獲理學(xué)博士學(xué)位。2017年9月至2019年4月在美國(guó)明尼蘇達(dá)大學(xué)聯(lián)合培養(yǎng)。2019年7月至2021年7月?lián)吻迦A大學(xué)博士后研究員。主要從事大規(guī)模矩陣計(jì)算及其應(yīng)用研究，具體研究方向?yàn)榇笮拖∈杈€(xiàn)性系統(tǒng)的低秩并行預(yù)處理方法和特征值求解等。目前已發(fā)表SCI論文十余篇；已獲得并主持了國(guó)家自然科學(xué)基金青年基金項(xiàng)目1項(xiàng)、中國(guó)石油大學(xué)北京校人才引進(jìn)科研啟動(dòng)基金1項(xiàng)和油氣資源與探測(cè)國(guó)家重點(diǎn)實(shí)驗(yàn)室第一批定向課題一個(gè)。
郵箱：[email protected]
代表性論文：
[1]Qingqing Zheng, Domain decomposition based preconditioner combined local low-rank approximation with global corrections, Computers & Mathematics with Applications, 114(2022) 41-46.
[2]Qingqing Zheng, Yuanzhe Xi, Yousef Saad, Powered Schur complement low-rank correction preconditioners for general sparse matrices, SIAM Journal on Matrix Analysis and Applications, 42(2) (2021) 659-682.
[3]Qingqing Zheng, Yuanzhe Xi, Yousef Saad, Multicolor low-rank preconditioner for general sparse linear systems, Numerical Linear Algebra with Applications, 2020;27:e2316.
[4]Qingqing Zheng, Linzhang Lu, On parameterized matrix splitting preconditioner for the saddle point problems, International Journal of Computer Mathematics, 96(2019) 1-17.
[5]Qingqing Zheng, Linzhang Lu, A shift-splitting preconditioner for a class of block two-by-two linear systems, Applied Mathematics Letters, 66 (2017) 54-60.
[6]Qingqing Zheng, Linzhang Lu, Extended shift-splitting preconditioners for saddle pointproblems, Journal of Computational and Applied Mathematics, 313 (2017) 70-81.
[7]Qingqing Zheng, Linzhang Lu, On semi-convergence of ULT iterative method for the singular saddle point problems, Computers and Mathematics with Applications, 72 (2016) 1549-1555.
[8]Qingqing Zheng, Changfeng Ma, Accelerated PMHSS iteration methods for complex symmetric linear systems，Numerical Algorithms, 2016:1-16.
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