{"id":6,"date":"2016-09-15T17:34:01","date_gmt":"2016-09-15T21:34:01","guid":{"rendered":"https:\/\/sciencescosmaincms.cm.ucf.edu\/math\/qsun\/?page_id=6"},"modified":"2026-04-27T11:46:13","modified_gmt":"2026-04-27T15:46:13","slug":"sun-qiyu","status":"publish","type":"page","link":"https:\/\/sciences.ucf.edu\/math\/qsun\/","title":{"rendered":"Sun Qiyu"},"content":{"rendered":"<h2><img decoding=\"async\" class=\"alignleft wp-image-1427 lazyload\" data-src=\"https:\/\/sciences.ucf.edu\/math\/qsun\/wp-content\/uploads\/sites\/10\/2025\/03\/qsun-v2.jpg\" alt=\"Qiyu Sun\" width=\"324\" height=\"383\" data-srcset=\"https:\/\/sciences.ucf.edu\/math\/qsun\/wp-content\/uploads\/sites\/10\/2025\/03\/qsun-v2.jpg 354w, https:\/\/sciences.ucf.edu\/math\/qsun\/wp-content\/uploads\/sites\/10\/2025\/03\/qsun-v2-254x300.jpg 254w\" data-sizes=\"(max-width: 324px) 100vw, 324px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 324px; --smush-placeholder-aspect-ratio: 324\/383;\" \/><span style=\"color: #ff0000\"><br \/>\nSun Qiyu<\/span> <span style=\"color: #33cccc\">(<b><span lang=\"ZH-CN\">\u5b59\u9880\u5f67<\/span><\/b><b>)<\/b><\/span><\/h2>\n<p>Professor<\/p>\n<p><span style=\"color: #33cccc\">E-mail Address:<\/span> <a href=\"mailto:qiyu.sun@ucf.edu\">qiyu.sun@ucf.edu<\/a><\/p>\n<p><span style=\"color: #33cccc\">Mailing Address:<\/span><\/p>\n<p style=\"padding-left: 30px\"><a href=\"https:\/\/sciences.ucf.edu\/math\">Department of Mathematics<\/a><br \/>\n<a href=\"http:\/\/ucf.edu\">University of Central Florida<\/a><br \/>\nOrlando, FL 32816, USA<\/p>\n<p><span style=\"color: #33cccc\">Phone and Fax Numbers:<\/span><\/p>\n<p style=\"padding-left: 30px\">Phone: US 407-823-4839<br \/>\nFax: US 407-823-6253<\/p>\n<hr \/>\n<div class=\"field field-name-field-link field-type-link-field field-label-inline clearfix\">\n<div class=\"field-label\"><span style=\"font-size: 1.14286rem\">Teaching<\/span><\/div>\n<\/div>\n<p>MAP2302H, Ordinary Differential Equations\u00a0 (Spring 2025)<\/p>\n<p>MAP4371, <span class=\"block-node block-prefix\">\u00a0<\/span><span class=\"block-node block-placeholder\" data-block-default=\"\" data-block-name=\"course_title\" data-block-title=\"Course Title\">Numerical Methods for Differential Equations (Spring 2025)<\/span><\/p>\n<hr \/>\n<h3>Publications<\/h3>\n<ul>\n<li>Yang Chen, Seok-Young Chung, Qiyu Sun, <a href=\"https:\/\/arxiv.org\/abs\/2602.19234\">Shift-invariant spaces on finite undirected graphs<\/a>, arXiv:2602.19234<\/li>\n<li>Yang Chen, Yeonju Lee, Yao Shi and Qiyu Sun, <a href=\"https:\/\/arxiv.org\/pdf\/2509.12605\">Kalman Filtering of Stationary Graph Signals<\/a>, arXiv:2509.12605<\/li>\n<li>Ali Zare, Yao Shi and Qiyu Sun, <a href=\"https:\/\/arxiv.org\/abs\/2508.17210\">Blind Deconvolution of Nonstationary Graph Signals over Shift-Invariant Channels,<\/a> arXiv:2508.17210<\/li>\n<li>Seok-Young Chung and Qiyu Sun, Shift-invariant spaces, bandlimited spaces and reproducing kernel spaces with shift-invariant kernels on undirected finite graphs,\n<div class=\"gs_gray\"><a href=\"https:\/\/arxiv.org\/pdf\/2412.12900\">arXiv preprint arXiv:2412.12900<\/a><\/div>\n<\/li>\n<li>Panpan Chen, Nader Motee and Qiyu Sun, Carleman-Fourier Linearization of Complex Dynamical Systems: Convergence and Explicit Error Bounds, <a href=\"https:\/\/arxiv.org\/pdf\/2411.11598\">arXiv preprint arXiv:2411.11598<\/a><\/li>\n<li>Seok-Young Chung and Qiyu Sun,\u00a0 Barron Space for Graph Convolution Neural Networks, Journal of Fourier Analysis and Applications, accepted.\u00a0 <a href=\"https:\/\/arxiv.org\/abs\/2311.02838\">arXiv:2311.02838\u00a0<\/a><\/li>\n<li>Panpan Chen, Nader Motee, Qiyu Sun, <a href=\"https:\/\/arxiv.org\/abs\/2511.07805\">Beyond Carleman Linearization of Nonlinear Dynamical System: Insights from a Case Study,<\/a> arXiv:2511.07805, In the volume: <span data-olk-copy-source=\"MessageBody\"><em>New Directions in Frame Theory and Harmonic Analysis \u2013 The Legacy of Jean-Pierre Gabardo<\/em>, edited by John J. Benedetto, Deguang Han,\u00a0 Palle Jorgensen and <span class=\"mark97sfcb7do\" data-markjs=\"true\" data-ogac=\"\" data-ogab=\"\" data-ogsc=\"\" data-ogsb=\"\" data-olk-copy-source=\"MessageBody\">Chun<\/span>&#8211;<span class=\"markag3u5osky\" data-markjs=\"true\" data-ogac=\"\" data-ogab=\"\" data-ogsc=\"\" data-ogsb=\"\">kit<\/span>\u00a0Lai.<\/span><\/li>\n<li>Qiquan Fang, Chang Eon Shin and Qiyu Sun, On Sylvester equations in Banach subalgebras, The special volume: <em>Sampling, Frames, and Harmonic Analysis &#8211; A Mathematical Celebration of Akram Aldroubi&#8217;s 65th Birthday<\/em> <span data-olk-copy-source=\"MessageBody\">\u00a0edited by Carlos Cabrelli, Christopher Heil, Ursula Molter, Alexander M. Powell and Sui Tang, <\/span><span data-olk-copy-source=\"MessageBody\">\u00a0Birkhauser series &#8220;Applied and Numerical Harmonic Analysis &#8220;, <\/span>\u00a0<a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/sylvestereqnrevisionsubmission\/\">arXiv:2407.09752\u00a0<\/a><\/li>\n<li>Nader Motee and\u00a0 Qiyu Sun, <a class=\"gsc_a_at\" href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/realcarlemanfourier2026\/\">Carleman-Fourier linearization of nonlinear real dynamical systems, <\/a>Discrete and Continuous Dynamical Systems Series B, <a class=\"mainColor\" href=\"https:\/\/www.aimsciences.org\/DCDS-B\/archive\">2026,\u00a0Volume 34<\/a>: 167-184. \u00a0Doi:\u00a0<a class=\"mainColor\" href=\"https:\/\/doi.org\/10.3934\/dcdsb.2025168\" target=\"_blank\" rel=\"noopener\">10.3934\/dcdsb.2025168<\/a><\/li>\n<li>Arash Amin, Cong Zheng, Qiyu Sun and Nader Motee, <a href=\"https:\/\/www.aimsciences.org\/article\/doi\/10.3934\/dcdsb.2024102\">Carlemen linearization of nonlinear systems and its finite-section approximations<\/a>,\u00a0 Discrete and Continuous Dynamical Systems Series B, Vol. 30, No. 2, 2025, pp. 577-603.<\/li>\n<li>Nazar Emirov, Guohui Song and\u00a0 Qiyu Sun, <a href=\"https:\/\/arxiv.org\/abs\/2510.01511\">Exponential convergence of a distributed divide-and-conquer algorithm for constrained convex optimization on networks<\/a>, <span data-olk-copy-source=\"MessageBody\">Expositiones Mathematicae, accepted.\u00a0 In the special collection: <em>Operator Algebras, Operator Theory and Applications: Dedicated to David Royal Larson\u00a0<\/em>edited by \u00a0Deguang Han, \u00a0Allan Donsig, Palle Jorgensen, Keri Kornelson and Rui Liu, <a class=\"anchor anchor-primary\" title=\"Go to table of contents for this volume\/issue\" href=\"https:\/\/www.sciencedirect.com\/journal\/expositiones-mathematicae\/vol\/43\/issue\/6\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Volume 43, Issue 6<\/span><\/span><\/a>, December 2025, article no. <a href=\"https:\/\/authors.elsevier.com\/a\/1m9652aQJBJd3z\">125740<\/a><\/span><\/li>\n<li>Arash Amini, Qiyu Sun, and Nader Motee, <a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/wp-content\/uploads\/sites\/10\/2025\/03\/AminiSunMoteeIEEE2025.pdf\">Learning Nonlinear Couplings in Network of Agents From a Single Sample Trajectory<\/a>, IEEE TRANSACTIONS ON CONTROL OF NETWORK SYSTEMS, VOL. 12, NO. 1, <span data-olk-copy-source=\"MessageBody\">74-84, <\/span>MARCH 2025.<\/li>\n<li>Cong Zheng, Cheng Cheng, and Qiyu Sun, <a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/wp-content\/uploads\/sites\/10\/2025\/03\/CongChengSunDSP2025.pdf\">Wiener Filters on Graphs and Distributed Implementations<\/a>, Digital Signal Processing,\u00a0 <a class=\"anchor anchor-primary\" title=\"Go to table of contents for this volume\/issue\" href=\"https:\/\/www.sciencedirect.com\/journal\/digital-signal-processing\/vol\/162\/suppl\/C\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Volume 162<\/span><\/span><\/a>, July 2025, 105156.<\/li>\n<li>Cheng Cheng, Qiyu Sun and Cong Zheng, I<a href=\"https:\/\/arxiv.org\/abs\/2504.14341\">terative Polynomial Approximation Algorithms for Inverse Graph Filters<\/a>, 2025 International Conference on Sampling Theory and Applications (SampTA), 1-5, 2025.\u00a0 arXiv 2504.14341<\/li>\n<li>N Emirov, G Song, Q Sun, <a class=\"gsc_a_at\" href=\"https:\/\/scholar.google.com\/citations?view_op=view_citation&amp;hl=zh-CN&amp;user=HB6PWJ0AAAAJ&amp;sortby=pubdate&amp;citation_for_view=HB6PWJ0AAAAJ:5bFWG3eDk9wC\">A Divide-and-Conquer Algorithm for Distributed Optimization on Networks,\u00a0<\/a>\u00a0 <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S1063520323001100\">Applied and\u00a0 Computational Harmonic Analysis<\/a>,\u00a0 2024<\/li>\n<li>Cheng Cheng, Yang Chen, Jeonyu Lee and Qiyu Sun, <a href=\"https:\/\/ieeexplore.ieee.org\/stamp\/stamp.jsp?tp=&amp;arnumber=10195957\">SVD-Based Graph Fourier transforms on directed product graphs,<\/a> IEEE Transactions on Signal and Information Processing over Networks, vol. 9, pp. 531-541, 2023 (One<span style=\"font-family: verdana, sans-serif\" data-olk-copy-source=\"MessageBody\">\u00a0of the IEEE Signal Processing Society\u2019s top 25 downloaded articles\u00a0from Sept. 2023 &#8211; Sept. 2024\u00a0for\u00a0<\/span>IEEE Transactions on Signal and Information Processing over Networks)<\/li>\n<li>\u00a0Yang Chen, Cheng Cheng, Qiyu Sun, <a href=\"https:\/\/rdcu.be\/dio5X\">Graph Fourier transform based on singular value decomposition of directed Laplacian<\/a>, \u00a0Sampling Theory, Signal Processing, and Data Analysis, vol. 12, article no. 24,\u00a0 2023.\u00a0 <a href=\"https:\/\/link.springer.com\/article\/10.1007\/s43670-023-00062-w\">Publisher Version<\/a><\/li>\n<li>Yang Chen, Cheng Cheng and Qiyu Sun, <a href=\"https:\/\/arxiv.org\/pdf\/1909.02078.pdf\">Phase retrieval of complex and vector-valued functions<\/a>, Journal of Functional Analysis, Volume 283, Issue 7, 1 October 2022, <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0022123622002130\">109593<\/a><\/li>\n<li>Nazar Emirov, Cheng Cheng, Junzheng Jiang, Qiyu Sun, Polynomial graph filter of multiple shifts and distributed implementation of inverse filtering, Sampling Theory, Signal Processing, and Data Analysis, <b data-test=\"journal-volume\">20<\/b>, Article\u00a0number:\u00a0<span data-test=\"article-number\">2<\/span>\u00a0(<span data-test=\"article-publication-year\">2022<\/span>).<\/li>\n<li>Cheng Cheng, Yingchun Jiang and Qiyu Sun,\u00a0 Spatially distributed sampling and reconstruction, \u00a0Applied and Computational Harmonic Analysis, <a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/wp-content\/uploads\/sites\/10\/2016\/09\/distributedsampling_web2017.pdf\">47 (2019), 109-148<\/a>. \u00a0<a href=\"http:\/\/arxiv.org\/abs\/1511.08541\">ArXiv\u00a0 1511.0841<\/a>\u00a0 <a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/wp-content\/uploads\/sites\/10\/2016\/09\/qiyu_sun_ima.pdf\">Poster<\/a><\/li>\n<li>Nader Motee and Qiyu Sun,\u00a0<a class=\"gsc_a_at\" href=\"https:\/\/scholar.google.com\/citations?view_op=view_citation&amp;hl=en&amp;user=HB6PWJ0AAAAJ&amp;sortby=pubdate&amp;citation_for_view=HB6PWJ0AAAAJ:WJVC3Jt7v1AC\">Sparsity and Spatial Localization Measures for Spatially Distributed Systems<\/a>, <a href=\"http:\/\/epubs.siam.org\/doi\/abs\/10.1137\/15M1049294\">SIAM Journal on Control and Optimization<\/a>,\u00a0 55 (1)(2017), 200\u2013235. (the 2019 SIAG\/CST Best SICON Paper Prize)<\/li>\n<li>Xin-rong Dai and Qiyu Sun, <a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/wp-content\/uploads\/sites\/10\/2016\/09\/daisun_web.pdf\">The abc problem for Gabor systems<\/a>, <em>Memoirs of American Mathematical Society<\/em>, volume 244, no. 1152,\u00a0 2016, pp. 1-109.\u00a0 (<a href=\"http:\/\/arxiv.org\/pdf\/1304.7750.pdf\"> Earlier version in ArXiv.org<\/a>)<\/li>\n<li><strong><a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/publications\/\">More &gt;&gt;&gt;<\/a>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/strong><\/li>\n<\/ul>\n<hr \/>\n<h3>Research Activities<\/h3>\n<ul>\n<li>Ranked among the Best Mathematics Scientists 2026 in the United States (1101 nationally and 2999 worldwide for 2026, and 1318 nationally and 3359 worldwide for the all\u2011career ranking), according to <a href=\"https:\/\/research.com\/scientists-rankings\/mathematics\/us?page=11\">the 5th edition of the Research.com<\/a> rankings.<\/li>\n<li>Give a talk applied mathematics seminar at Michigan State University,\u00a0 April 2026.<\/li>\n<li>Give talks at\u00a0 Beijing Normal University, \u00a0Beijing University of Technology, Nankai University, Linyi\u00a0 University and Zhejiang Normal University, March 2026.<\/li>\n<li>Give a talk at The International Society in Quantization, Geometry, and Dynamics (SQGD\u2013SS03 \u2014 Use of Harmonic Analysis in Quantization, Geometry, and Dynamics, March 7\u20138, 2026.<\/li>\n<li>Give a talk at the Tenth Hangzhou International Conference on Harmonic Analysis and Applications, December 26-29, 2025.<\/li>\n<li>Ranked at 226562 (2025) and 187539 (career) in the <a href=\"https:\/\/topscinet.com\/\">World&#8217;s Top 2% Scientists Network<\/a> (2025) , 09\/2025.<\/li>\n<li>Cong Zheng passed the dissertation defense. Her dissertation is &#8220;Carleman Linearization of Dynamical Systems, and Graph Inverse and Wiener Filtering&#8221;. She is under my supervision.<\/li>\n<li>Seok-Young Chung passed the dissertation defense. His dissertation is \u201cPOSITIVITY AND INVARIANCE: FROM RADIAL BASIS FUNCTIONS TO GRAPH SIGNAL SPACES&#8221;.\u00a0 He is under the supervision of Professor Mourad Ismail with my co-supervision. He accepted a post-doctoral position at the Michigan State University after graduation.\u00a0 His dissertation was honored with the <em>Outstanding Dissertation Award<\/em> from the College of Sciences. This award recognizes excellence in scholarly work, highlighting both the quality and the significance of his completed research.<\/li>\n<li>Give a talk IEEE SPS Webinar: <a href=\"https:\/\/signalprocessingsociety.org\/blog\/sps-webinar-graph-fourier-transform-directed-graphs\">Graph Fourier Transform for Directed Graphs<\/a>, March 28, 2025.<a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/wp-content\/uploads\/sites\/10\/2025\/03\/IEEEWebinarSun2025Web.pdf\"> Slide<\/a><\/li>\n<li>Panpan Chen (PhD, 2024)\u00a0 passed the dissertation defense. Her dissertation is \u201cCarleman Linearization for nonlinear systems and their explicit error bounds\u201d.\u00a0 She is co-supervised with Professor Yuanwei Qi. She accepted a post-doctoral position at the University of Central Florida after graduation.<\/li>\n<li>Give a talk at <a href=\"https:\/\/sites.google.com\/view\/minds-seminar\/home\">One World MINDS Seminar<\/a>,\u00a0 Feb 15, 2024. The recorded video can be found at<a href=\"https:\/\/www.youtube.com\/watch?v=cGNsTxgM1BQ\"> youtube<\/a><\/li>\n<li>Given a virtual talk on Distributed algorithms for graph inverse filtering and wiener filtering, graph signal processing at the Workshop on Manifold and Graph-Based Learning<br \/>\nMay 16 &#8211; 20, 2022, The Fields Institute. <a href=\"https:\/\/www.youtube.com\/watch?v=3Ael78PbfCk&amp;t=1799s\">Video Record on Youtube<\/a><\/li>\n<li>Gave\u00a0 a virtual <a href=\"https:\/\/www.norbertwiener.umd.edu\/FFT\/2020\/index.html\">Faraway Fourier Talk<\/a> at The Norbert Wiener Center on Harmonic Analysis and Applications, January 4, 2021.\u00a0 <a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/wp-content\/uploads\/sites\/10\/2021\/01\/FarawayFourierTalk2021.pdf\">Slides<\/a>\u00a0 <a href=\"https:\/\/www.youtube.com\/watch?v=-7akjHU6WZQ\">Video Record on YouTube<\/a><\/li>\n<li>Join the editorial board of <a href=\"https:\/\/www.springer.com\/journal\/41\">Journal of Fourier Analysis and Applications<\/a>.<\/li>\n<li>Nazar Emirov (PhD, 2020)\u00a0 passed the dissertation defense. His dissertation is \u201cDistributed algorithms and inverse graph filtering\u201d.\u00a0 He accepted a post-doctoral position at Boston College after graduation.<\/li>\n<li>Attend the SIAM SIAM Conference on Control and Its Applications (CT19) , June 19 &#8211; 21, 2019<br \/>\nat Chengdu, China and accept the 2019 SIAG\/CST Best SICON Paper Prize for the paper \u201cSparsity and Spatial Localization Measures for Spatially Distributed Systems,\u201d SICON 55-1 (2017), pp. 200-235, to recognize\u00a0 for making \u201ca fundamental contribution to spatially distributed systems theory, showing in particular that quadratically optimal state feedback controllers for spatially decaying systems are sparse and spatially localized.\u201d The SIAG\/CST Best SICON Paper Prize is awarded to the author(s) of the two most outstanding papers, as determined by the prize committee, published in the <i>SIAM Journal on Control and Optimization<\/i> (SICON) in the three calendar years preceding the award year.\u00a0 <img decoding=\"async\" class=\"alignnone size-medium wp-image-1091 lazyload\" data-src=\"https:\/\/sciences.ucf.edu\/math\/qsun\/wp-content\/uploads\/sites\/10\/2021\/04\/NaderSunSIAMAward-300x143.jpg\" alt=\"\" width=\"300\" height=\"143\" data-srcset=\"https:\/\/sciences.ucf.edu\/math\/qsun\/wp-content\/uploads\/sites\/10\/2021\/04\/NaderSunSIAMAward-300x143.jpg 300w, https:\/\/sciences.ucf.edu\/math\/qsun\/wp-content\/uploads\/sites\/10\/2021\/04\/NaderSunSIAMAward-1024x487.jpg 1024w, https:\/\/sciences.ucf.edu\/math\/qsun\/wp-content\/uploads\/sites\/10\/2021\/04\/NaderSunSIAMAward-768x365.jpg 768w, https:\/\/sciences.ucf.edu\/math\/qsun\/wp-content\/uploads\/sites\/10\/2021\/04\/NaderSunSIAMAward-624x297.jpg 624w, https:\/\/sciences.ucf.edu\/math\/qsun\/wp-content\/uploads\/sites\/10\/2021\/04\/NaderSunSIAMAward.jpg 1280w\" data-sizes=\"(max-width: 300px) 100vw, 300px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 300px; --smush-placeholder-aspect-ratio: 300\/143;\" \/><\/li>\n<li>Cheng Cheng (PhD 2017) will be a postdoctoral Associate at\u00a0 Duke University and SAMSI. She is supervised by Xin Li with my co-supervision.<\/li>\n<li>Syed Alam Abbas (PhD 2017) \u00a0will be a postdoctoral research at University of New Mexico. He is supervised by Hassan Foroosh with my co-supervision.<\/li>\n<li>Aritra Dutta (PhD 2016)\u00a0 will be a Postdoctoral Researcher at the University of Edinburgh, with joint affiliation at the Visual Computing Center in KAUST, Saudi Arabia. Dr. Aritra Dutta is supervised by Xin Li with my co-supervision.<\/li>\n<li><a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/research-activities\/\"><strong>More\u00a0 &gt;&gt;&gt;<\/strong><\/a><\/li>\n<\/ul>\n<hr \/>\n<h3>Academic Services<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/www.springer.com\/journal\/41\">Journal of Fourier Analysis and Applications<\/a> (2021&#8211;)<\/strong><\/li>\n<li><a href=\"https:\/\/www.frontiersin.org\/journals\/signal-processing\"><strong>Frontiers in Signal Processing<\/strong><\/a> <strong>(2021&#8211;)<\/strong><\/li>\n<li><strong><a href=\"https:\/\/www.springer.com\/journal\/43670\/\">Sampling Theory, Signal Processing, and Data Analysis (2020&#8211;)<\/a><\/strong><\/li>\n<li><a href=\"http:\/\/www.informaworld.com\/smpp\/title~content=t713597287\"><strong>Numerical Functional Analysis and Optimization (2010&#8211;)<\/strong><\/a><\/li>\n<li><strong><a href=\"http:\/\/www.stsip.org\/\">Sampling Theory in Signal and Imaging Processing (2013&#8211;2020)<\/a><\/strong><\/li>\n<li><a href=\"http:\/\/www.springer.com\/computer\/theoretical+computer+science\/journal\/10444?detailsPage=editorialBoard\"><strong>Advances in Computational Mathematics (2006&#8211;2013)<\/strong><\/a><\/li>\n<li><a href=\"http:\/\/www.tandfonline.com\/toc\/lnfa20\/33\/7-9\"><strong>Special issue on Operator Algebra and Representation: Frames, Wavelets and Fractals (Numerical Functional Analysis and Optimization, Volume 33, No.7\u20149, 2012)<\/strong><\/a><\/li>\n<li><strong><a href=\"http:\/\/www.tandfonline.com\/toc\/gapa20\/90\/8\">Special issue on Wavelet Analysis in PDE and Mathematical Imagery (Applicable Analysis,\u00a0 Vol 90, No. 8, 2011)<\/a><\/strong><\/li>\n<li><a href=\"http:\/\/sfx.fcla.edu\/ucf\/?issn=0167-8019&amp;eissn=1572-9036&amp;date=2002-04-05&amp;genre=journal&amp;title=Acta%20Applicandae%20Mathematicae&amp;subject=Physics%20and%20Astronomy&amp;issn1=01678019\"><strong>Special issue on Applied Harmonic Analysis: Wavelets and Sampling (Acta Applicandae Mathematicae, Vol. 107, no. 1-3, 2009)<\/strong><\/a><\/li>\n<li><a href=\"http:\/\/www.springerlink.com\/content\/1019-7168\/18\/2-4\/\"><strong>Special issue on Frames (Advances in Computational Mathematics, 2003)<\/strong><\/a><\/li>\n<\/ul>\n<hr \/>\n<h3>Favorite Links<\/h3>\n<ul>\n<li><a href=\"http:\/\/www.sciencedirect.com\/science\/journal\/10635203\"><strong>Applied and Computational Harmonic Analysis<\/strong><\/a><\/li>\n<li><a href=\"http:\/\/www.springerlink.com\/content\/100122\/\"><strong>Constructive Approximation<\/strong><\/a><\/li>\n<li><a href=\"http:\/\/ieeexplore.ieee.org\/xpl\/RecentIssue.jsp?punumber=83\"><strong>IEEE Transcations on Image Processing<\/strong><\/a><\/li>\n<li><a href=\"http:\/\/ieeexplore.ieee.org\/xpl\/RecentIssue.jsp?reload=true&amp;punumber=78\"><strong>IEEE Transaction on Signal Processing<\/strong><\/a><\/li>\n<li><a href=\"http:\/\/www.sciencedirect.com\/science\/journal\/00219045\"><strong>Journal of Approximation Theory<\/strong><\/a><\/li>\n<li><a href=\"http:\/\/www.springerlink.com\/content\/1069-5869\"><strong>Journal of Fourier Analysis and Applications<\/strong><\/a><\/li>\n<li><a href=\"http:\/\/www.elsevier.com\/wps\/find\/journaldescription.cws_home\/622879\/description#description\"><strong>Journal of Functional Analysis<\/strong><\/a><\/li>\n<li><a href=\"http:\/\/www.informaworld.com\/smpp\/title~content=t713597287\"><strong>Numerical Functional Analysis and Optimization\u00a0<\/strong><\/a><\/li>\n<li><a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/eighth-hangzhou-workshop-on-harmonic-analysis-and-applications\/\">The Eighth Hangzhou Workshop on Harmonic Analysis and Applications (December 8-11, 2023)<\/a><\/li>\n<li>The\u00a0 <a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/the-seventh-hangzhou-workshop-on-harmonic-analysis-and-applications\/\">Seventh Hangzhou workshop on Harmonic Analysis and Applications, <\/a>December 16-18, 2022.<\/li>\n<li><a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/sixth-hangzhou-workshop-on-harmonic-analysis-and-applications\/\">The 6th Hangzhou Workshop on Harmonic Analysis and Applications,\u00a0 December 4 and 5, 2021<\/a><\/li>\n<li>The<a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/the-fifth-hangzhou-workshop-on-harmonic-analysis-and-applications\/\"> Fifth Hangzhou Workshop on Harmonic Analysis and Applications<\/a>, December 18-20, 2020.<\/li>\n<li>The <a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/forth-hangzhou-workshop-on-harmonic-analysis-and-applications\/\"><strong> Fourth Hangzhou Workshop on Harmonic Analysis and Applications<\/strong>, December 14-15, 2019 <\/a><\/li>\n<li>The <a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/third-hangzhou-workshop-on-harmonic-analysis-and-applications\/\"> <strong> third Hangzhou workshop on harmonic analysis<\/strong>, December 15-16, 2018<\/a><\/li>\n<li><strong><a href=\"http:\/\/iwota2018.fudan.edu.cn\/Data\/List\/Speakers#Session_3\">Special Session on Infinite Dimension Systems and Wavelets<\/a>, IWOTA 2018, organized by Marcin Bownik, Xingde Dai and Qiyu Sun<\/strong><\/li>\n<li><strong><a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/workshop-on-harmonic-analysis-and-sampling-theory\/\">Workshop on\u00a0 Applied Harmonic Analysis and Sampling Theory (February 2018)<\/a><\/strong><\/li>\n<li><strong style=\"font-size: 1rem\"><a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/second-hangzhou-workshop-on-harmonic-analysis-and-applications\/\">The second Hangzhou workshop on\u00a0 harmonic analysis and applications<\/a> at Hangzhou,\u00a0 Zhejiang, December 16 -17, 2017<\/strong><\/li>\n<li><strong><a href=\"http:\/\/www.ams.org\/meetings\/sectional\/2246_program_ss6.html#title\" name=\"Applied Harmonic Analysis: Frames, Samplings and Applications\">Special Session on Applied Harmonic Analysis: Frames, Samplings and Applications, AMS Sectional Meeting at UCF, September 2017<\/a><\/strong><\/li>\n<li><strong><a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/wp-content\/uploads\/sites\/10\/2017\/04\/workshop_booklet.pdf\">Workshop on High-Dimensional Data Fitting and Approximation, March 2017<\/a><\/strong><\/li>\n<li><a href=\"http:\/\/math.cos.ucf.edu\/opqs15\/opqs2015.html\"><strong>Conference on Orthogonal Polynomials and q-Series, 2015<\/strong><\/a><\/li>\n<li><a href=\"http:\/\/www.math.ucf.edu\/~inverse\"><strong>Computational Analysis of Inverse Problems and Partial Differential Equations, 2013<\/strong><\/a><\/li>\n<li><a href=\"http:\/\/math.ucf.edu\/~qsun\/Banff10\/banff10.html\"><strong>Banff workshop on Operator Algebra and Representation Theory, October 9-10, 2010<\/strong><\/a><\/li>\n<li><a href=\"http:\/\/math.ucf.edu\/~siamseas\/siamseas08.html\"><strong>32nd SIAM Southeastern-Atlantic Section Conference, 2008<\/strong><\/a><\/li>\n<li><a href=\"http:\/\/www.ams.org\/\"><strong>American Mathematical Society (AMS)<\/strong><\/a><\/li>\n<li><a href=\"http:\/\/www.ams.org\/mathscinet\/\"><strong>MathSciNet<\/strong><strong>, American Mathematical Society<\/strong><\/a><\/li>\n<li><a href=\"http:\/\/www.isiknowledge.com\/\"><strong>ISI Web of Knowledge<\/strong><\/a><\/li>\n<\/ul>\n<h3>Myself<\/h3>\n<ul>\n<li><a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/resumeqiyusunweb2026\/\"><strong>My Resume 2026<\/strong><\/a><\/li>\n<li><strong style=\"font-size: 1rem\"><a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/wp-content\/uploads\/sites\/10\/2025\/01\/ResumeQiyuSunWeb2025.pdf\">My Official Website<\/a><\/strong><\/li>\n<li><a href=\"http:\/\/www.ams.org\/mathscinet\/search\/authors.html?coauth=316543&amp;r=1\"><strong>Some of my collaborators<\/strong><\/a><\/li>\n<li><a href=\"http:\/\/www.ams.org\/msnmain?fn=130&amp;fmt=hl&amp;pg1=IID&amp;s1=316543&amp;v1=Sun%2C%20Qiyu\"><strong>Mathematical Review items<\/strong><\/a><\/li>\n<li><strong><a href=\"http:\/\/www.researcherid.com\/rid\/A-3527-2013\">ISI Web of Knowledge<\/a><\/strong><\/li>\n<li><a href=\"http:\/\/scholar.google.com\/citations?view_op=list_works&amp;hl=en&amp;user=HB6PWJ0AAAAJ&amp;gmla=AJsN-F6oCw3bygp5sdt-10J1mfHeqITA9FPyaARSjS76HLWwUcm2wEOucTWqcZDcO_I-sapXk-XkYNrhqR832_K_IvbSPWxSn3tbw7XB9dlLJEwOnLYK1bY\"><strong>Google Scholar<\/strong><\/a><\/li>\n<li><a href=\"http:\/\/arxiv.org\/find\/all\/1\/all:+EXACT+qiyu_sun\/0\/1\/0\/all\/0\/1\"><strong>Papers\u00a0 in ArXiv.org<\/strong><\/a><\/li>\n<li><strong><a href=\"https:\/\/www.researchgate.net\/profile\/Qiyu_Sun\/\">ResearchGate<\/a><\/strong><\/li>\n<li>My Book: <a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/HBSbook\/\">\u591a\u8fdb\u5236\u5c0f\u6ce2\u5206\u6790<\/a> (An Introduction to Multiband Wavelets) published by <a href=\"http:\/\/www.press.zju.edu.cn\/book_detail.html?book_id=230854\"><strong>Zhejiang University Press, 2001<\/strong><\/a><\/li>\n<li>Lecture Notes: <a href=\"https:\/\/sciences.ucf.edu\/math\/qsun\/elementaryapproximationtheory\/\">Elementary Approximation Theory<\/a>, 2011<\/li>\n<\/ul>\n<p><a title=\"Visit tracker\" href=\"https:\/\/clustrmaps.com\/site\/1aebt\"><img decoding=\"async\" data-src=\"\/\/www.clustrmaps.com\/map_v2.png?d=JElHW4deVR03J4MdutqDFBttcS1GdJ6dzvTA9BWnZl8&amp;cl=ffffff\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sun Qiyu (\u5b59\u9880\u5f67) Professor E-mail Address: qiyu.sun@ucf.edu Mailing Address: Department of Mathematics University of Central Florida Orlando, FL 32816, USA Phone and Fax Numbers: Phone: US 407-823-4839 Fax: US 407-823-6253 Teaching MAP2302H, Ordinary Differential Equations\u00a0 (Spring 2025) MAP4371, \u00a0Numerical Methods for Differential Equations (Spring 2025) Publications Yang Chen, Seok-Young Chung, Qiyu Sun, Shift-invariant spaces on [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-templates\/front-page.php","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"class_list":["post-6","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/sciences.ucf.edu\/math\/qsun\/wp-json\/wp\/v2\/pages\/6","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sciences.ucf.edu\/math\/qsun\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sciences.ucf.edu\/math\/qsun\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sciences.ucf.edu\/math\/qsun\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/sciences.ucf.edu\/math\/qsun\/wp-json\/wp\/v2\/comments?post=6"}],"version-history":[{"count":157,"href":"https:\/\/sciences.ucf.edu\/math\/qsun\/wp-json\/wp\/v2\/pages\/6\/revisions"}],"predecessor-version":[{"id":1528,"href":"https:\/\/sciences.ucf.edu\/math\/qsun\/wp-json\/wp\/v2\/pages\/6\/revisions\/1528"}],"wp:attachment":[{"href":"https:\/\/sciences.ucf.edu\/math\/qsun\/wp-json\/wp\/v2\/media?parent=6"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}