![Ioannis STRATIS | Professor (Full) | Professor | National and Kapodistrian University of Athens, Athens | uoa | Department of Mathematics, Section of Mathematical Analysis Ioannis STRATIS | Professor (Full) | Professor | National and Kapodistrian University of Athens, Athens | uoa | Department of Mathematics, Section of Mathematical Analysis](https://www.researchgate.net/profile/Ioannis-Stratis/publication/353957854/figure/fig2/AS:1057846502387712@1629221668149/Randomly-oriented-helices_Q320.jpg)
Ioannis STRATIS | Professor (Full) | Professor | National and Kapodistrian University of Athens, Athens | uoa | Department of Mathematics, Section of Mathematical Analysis
![Ioannis STRATIS | Professor (Full) | Professor | National and Kapodistrian University of Athens, Athens | uoa | Department of Mathematics, Section of Mathematical Analysis Ioannis STRATIS | Professor (Full) | Professor | National and Kapodistrian University of Athens, Athens | uoa | Department of Mathematics, Section of Mathematical Analysis](https://www.researchgate.net/profile/Ioannis-Stratis/publication/245381858/figure/fig1/AS:669973798211602@1536745609743/Geometrical-configuration-of-the-2D-or-3D-nested-piecewise-homogeneous-scatterer-V_Q320.jpg)
Ioannis STRATIS | Professor (Full) | Professor | National and Kapodistrian University of Athens, Athens | uoa | Department of Mathematics, Section of Mathematical Analysis
![Ioannis Stratis on Twitter: "Just got this offer - Who Wants To Win a Phil Heath "The Gift" Package? http://t.co/cqA9r8CorR from @PHILHEATH" Ioannis Stratis on Twitter: "Just got this offer - Who Wants To Win a Phil Heath "The Gift" Package? http://t.co/cqA9r8CorR from @PHILHEATH"](https://pbs.twimg.com/profile_images/378800000740159948/73f7b372a1094affd6f509112b4c6ba2_400x400.jpeg)
Ioannis Stratis on Twitter: "Just got this offer - Who Wants To Win a Phil Heath "The Gift" Package? http://t.co/cqA9r8CorR from @PHILHEATH"
![Stratis Impresses the Audience with The Farewell at the United Solo Festival | archive , community , arts & literature | The National Herald Stratis Impresses the Audience with The Farewell at the United Solo Festival | archive , community , arts & literature | The National Herald](https://media.ekirikas.com/filesystem/images/20200614/engine/phytos-stratis-photo_15_0_type13281.jpg)
Stratis Impresses the Audience with The Farewell at the United Solo Festival | archive , community , arts & literature | The National Herald
![Ioannis STRATIS | Professor (Full) | Professor | National and Kapodistrian University of Athens, Athens | uoa | Department of Mathematics, Section of Mathematical Analysis Ioannis STRATIS | Professor (Full) | Professor | National and Kapodistrian University of Athens, Athens | uoa | Department of Mathematics, Section of Mathematical Analysis](https://www.researchgate.net/profile/Ioannis-Stratis/publication/226311197/figure/fig3/AS:302186958475267@1449058393478/The-original-a-and-reconstruction-b-of-the-scattered-field-U-s-dA-x-TH-x-14-d_Q320.jpg)
Ioannis STRATIS | Professor (Full) | Professor | National and Kapodistrian University of Athens, Athens | uoa | Department of Mathematics, Section of Mathematical Analysis
![Ioannis STRATIS | Professor (Full) | Professor | National and Kapodistrian University of Athens, Athens | uoa | Department of Mathematics, Section of Mathematical Analysis Ioannis STRATIS | Professor (Full) | Professor | National and Kapodistrian University of Athens, Athens | uoa | Department of Mathematics, Section of Mathematical Analysis](https://www.researchgate.net/profile/Ioannis-Stratis/publication/354983719/figure/fig1/AS:1075442039668737@1633416771780/The-invariant-set-Oe-of-problem-SCas-We-notice-that-Oe-0-1-2-as-e-0_Q320.jpg)
Ioannis STRATIS | Professor (Full) | Professor | National and Kapodistrian University of Athens, Athens | uoa | Department of Mathematics, Section of Mathematical Analysis
![Ioannis STRATIS | Professor (Full) | Professor | National and Kapodistrian University of Athens, Athens | uoa | Department of Mathematics, Section of Mathematical Analysis Ioannis STRATIS | Professor (Full) | Professor | National and Kapodistrian University of Athens, Athens | uoa | Department of Mathematics, Section of Mathematical Analysis](https://www.researchgate.net/profile/Ioannis-Stratis/publication/343414437/figure/fig2/AS:920651493806080@1596511829985/Number-of-confirmed-cases-per-day-in-Italy-The-blue-dots-represents-the-data-obtained_Q320.jpg)
Ioannis STRATIS | Professor (Full) | Professor | National and Kapodistrian University of Athens, Athens | uoa | Department of Mathematics, Section of Mathematical Analysis
![Resonant Problems by Quasilinearization – topic of research paper in Mathematics. Download scholarly article PDF and read for free on CyberLeninka open science hub. Resonant Problems by Quasilinearization – topic of research paper in Mathematics. Download scholarly article PDF and read for free on CyberLeninka open science hub.](https://cyberleninka.org/viewer_images/492544/f/1.png)