«intersection body»

۲۵۵۹ نتیجه
  • volume difference inequalities for the projection and intersection bodies

    مقاله۲۰۱۵bulletin of the iranian mathematical societyc. j. zhao, w. s. cheung

    in this paper, we introduce a new concept of volumes difference function of the projection and intersection bodies. following this, we establish the minkowski and brunn-minkowski inequalities for volumes difference function of the projection and intersection bodies.

  • Volume difference inequalities for the projection and intersection bodies

    مقاله۲۰۱۵Bulletin of the Iranian Mathematical SocietyC. J. Zhao, W. S. Cheung

    In this paper, we introduce a new concept of volumes difference function of the projection and intersection bodies. Following this, we establish the Minkowski and Brunn-Minkowski inequalities for volumes difference function of the projection and intersection bodies.

  • Inequalities for dual quermassintegrals of mixed intersection bodies

    سند علمی۲۰۰۴ZHAO CHANG - JIAN, LENG GANG - SONG

    In this paper, we first introduce a new concept of dual quermassintegral sum function of two star bodies and establish Minkowski's type inequality for dual quermassintegral sum of mixed intersection bodies, which is a general form of the Minkowski inequality for mixed intersectio

  • On the local convexity of intersection bodies of revolution

    سند علمی۲۰۱۳M. Angeles Alfonseca, Jaegil Kim

    One of the fundamental results regarding intersection bodies is Busemann’s theorem, which states that the intersection body of a symmetric convex body is convex. Thus, it is natural to ask how much of convexity is guaranteed under the intersection body operation. In this paper we

  • Isomorphic Properties of Intersection Bodies

    سند علمی۲۰۱۱A. KOLDOBSKY, M. ZYMONOPOULOU

    We study isomorphic properties of two generalizations of intersection bodies the class I k of k-intersection bodies in R and the class BPk of generalized k-intersection bodies in R. In particular, we show that all convex bodies can be in a certain sense approximated by intersecti

  • Intersection Bodies and Generalized Cosine Transforms

    سند علمی۲۰۰۸BORIS RUBIN

    Intersection bodies represent a remarkable class of geometric objects associated with sections of star bodies and invoking Radon transforms, generalized cosine transforms, and the relevant Fourier analysis. We review some known facts and give them new proofs. The main focus is in

  • The unit ball is an attractor of the intersection body operator

    سند علمی۲۰۱۰Alexander Fish, Fedor Nazarov, Dmitry Ryabogin, Artem Zvavitch

    The intersection body of a ball is again a ball. So, the unit ball Bd ⊂Rd is a fixed point of the intersection body operator acting on the space of all star-shaped origin symmetric bodies endowed with the Banach– Mazur distance. E. Lutwak asked if there is any other star-shaped b

  • Lp-dual geominimal surface areas for the general Lp-intersection bodies

    سند علمی۲۰۱۷Zhonghuan Shen, Yanan Li, Weidong Wang, Z. H. Shen

    For 0 < p < 1, Haberl and Ludwig defined the notions of symmetric and asymmetric Lp-intersection bodies. Recently, Wang and Li introduced the general Lp-intersection bodies. In this paper, we give the Lp-dual geominimal surface area forms for the extremum values and Brunn-Minkows

  • COUNTEREXAMPLES TO CONVEXITY OF k-INTERSECTION BODIES

    سند علمی۲۰۱۳VLADYSLAV YASKIN

    It is a well-known result due to Busemann that the intersection body of an origin-symmetric convex body is also convex. Koldobsky introduced the notion of k-intersection bodies. We show that the k-intersection body of an origin-symmetric convex body is not necessarily convex if k

  • Non-intersection Bodies All of Whose Central Sections Are Intersection Bodies

    سند علمی۲۰۰۵M. YASKINA

    We construct symmetric convex bodies that are not intersection bodies, but all of their central hyperplane sections are intersection bodies. This result extends the studies by Weil in the case of zonoids and by Neyman in the case of subspaces of Lp.