Johan Gielis

Johan Gielis (born July 8, 1962) is a Belgian engineer, scientist, mathematician, and entrepreneur. Gielis is known for his contributions to the field of mathematics, specifically in the area of modeling and geometrical methods. He is best known for developing the concept of the superformula, which is a generalization of the traditional Pythagorean theorem and the equation of the circle, that can generate a wide variety of complex shapes found in nature. Provided by Wikipedia
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  1. 1
    Plant Morphology and Function, Geometric Morphometrics, and Modelling: Decoding the Mathematical Secrets of Plants

    Plant Morphology and Function, Geometric Morphometrics, and Modelling: Decoding the Mathematical Secrets of Plants by Jie Gao, Weiwei Huang, Johan Gielis, Peijian Shi

    Published 2023-10-01
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  2. 2
    Editorial: The adaptation, plasticity and extinction of forest plants to climate change: mechanisms behind the morphological, physiological, phenological and ecological traits

    Editorial: The adaptation, plasticity and extinction of forest plants to climate change: mechanisms behind the morphological, physiological, phenological and ecological traits by Weiwei Huang, Weiwei Huang, Johan Gielis, Peijian Shi

    Published 2024-10-01
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  3. 3
    Comparison of two polar equations in describing the geometries of domestic pigeon (Columba livia domestica) eggs

    Comparison of two polar equations in describing the geometries of domestic pigeon (Columba livia domestica) eggs by Lin Wang, Darren K. Griffin, Michael N. Romanov, Johan Gielis

    Published 2024-12-01
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  4. 4
    Quantifying the Variation in the Geometries of the Outer Rims of Corolla Tubes of <i>Vinca major</i> L.

    Quantifying the Variation in the Geometries of the Outer Rims of Corolla Tubes of <i>Vinca major</i> L. by Lin Wang, Qinyue Miao, Ülo Niinemets, Johan Gielis, Peijian Shi

    Published 2022-07-01
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  5. 5
    Editorial: Leaf functional traits: Ecological and evolutionary implications

    Editorial: Leaf functional traits: Ecological and evolutionary implications by Karl J. Niklas, Peijian Shi, Johan Gielis, Julian Schrader, Ülo Niinemets, Ülo Niinemets

    Published 2023-03-01
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  6. 6
    Correction: Universal Natural Shapes: From Unifying Shape Description to Simple Methods for Shape Analysis and Boundary Value Problems.

    Correction: Universal Natural Shapes: From Unifying Shape Description to Simple Methods for Shape Analysis and Boundary Value Problems. by Johan Gielis, Diego Caratelli, Yohan Fougerolle, Paolo Emilio Ricci, Ilia Tavkelidze, Tom Gerats

    Published 2012-01-01
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  7. 7
    Comparison of Two Simplified Versions of the Gielis Equation for Describing the Shape of Bamboo Leaves

    Comparison of Two Simplified Versions of the Gielis Equation for Describing the Shape of Bamboo Leaves by Weihao Yao, Ülo Niinemets, Wenjing Yao, Johan Gielis, Julian Schrader, Kexin Yu, Peijian Shi

    Published 2022-11-01
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  8. 8
    A geometrical model for testing bilateral symmetry of bamboo leaf with a simplified Gielis equation

    A geometrical model for testing bilateral symmetry of bamboo leaf with a simplified Gielis equation by Shuyan Lin, Li Zhang, Gadi V. P. Reddy, Cang Hui, Johan Gielis, Yulong Ding, Peijian Shi

    Published 2016-10-01
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  9. 9
    Inequality Measure of Leaf Area Distribution for a Drought-Tolerant Landscape Plant

    Inequality Measure of Leaf Area Distribution for a Drought-Tolerant Landscape Plant by Lichao Huang, David A. Ratkowsky, Cang Hui, Johan Gielis, Meng Lian, Weihao Yao, Qiying Li, Liuyue Zhang, Peijian Shi

    Published 2023-08-01
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  10. 10
    Why Does Not the Leaf Weight-Area Allometry of Bamboos Follow the 3/2-Power Law?

    Why Does Not the Leaf Weight-Area Allometry of Bamboos Follow the 3/2-Power Law? by Shuyan Lin, Lijuan Shao, Cang Hui, Yu Song, Gadi V. P. Reddy, Johan Gielis, Fang Li, Yulong Ding, Qiang Wei, Peijian Shi

    Published 2018-05-01
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  11. 11
    Scaling relationships between the total number of leaves and the total leaf area per culm of two dwarf bamboo species

    Scaling relationships between the total number of leaves and the total leaf area per culm of two dwarf bamboo species by Chengkang Wang, Yi Heng, Qingwei Xu, Yajun Zhou, Xuyang Sun, Yuchong Wang, Weihao Yao, Meng Lian, Qiying Li, Liuyue Zhang, Ülo Niinemets, Dirk Hölscher, Johan Gielis, Karl J. Niklas, Peijian Shi

    Published 2024-07-01
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