An integral formula related to inner isoptics
Rendiconti del Seminario Matematico della Università di Padova, Tome 125 (2011), pp. 39-50.
@article{RSMUP_2011__125__39_0,
     author = {Martini, H. and Mozgawa, W.},
     title = {An integral formula related to inner isoptics},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {39--50},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {125},
     year = {2011},
     mrnumber = {2865958},
     zbl = {1252.52003},
     language = {en},
     url = {http://archive.numdam.org/item/RSMUP_2011__125__39_0/}
}
TY  - JOUR
AU  - Martini, H.
AU  - Mozgawa, W.
TI  - An integral formula related to inner isoptics
JO  - Rendiconti del Seminario Matematico della Università di Padova
PY  - 2011
SP  - 39
EP  - 50
VL  - 125
PB  - Seminario Matematico of the University of Padua
UR  - http://archive.numdam.org/item/RSMUP_2011__125__39_0/
LA  - en
ID  - RSMUP_2011__125__39_0
ER  - 
%0 Journal Article
%A Martini, H.
%A Mozgawa, W.
%T An integral formula related to inner isoptics
%J Rendiconti del Seminario Matematico della Università di Padova
%D 2011
%P 39-50
%V 125
%I Seminario Matematico of the University of Padua
%U http://archive.numdam.org/item/RSMUP_2011__125__39_0/
%G en
%F RSMUP_2011__125__39_0
Martini, H.; Mozgawa, W. An integral formula related to inner isoptics. Rendiconti del Seminario Matematico della Università di Padova, Tome 125 (2011), pp. 39-50. http://archive.numdam.org/item/RSMUP_2011__125__39_0/

[1] W. Cieslak - A. Miernowski - W. Mozgawa, Isoptics of a closed strictly convex curve, in: Global differential geometry and global Analysis (Berlin, 1990), pp. 28-35, Lecture Notes in Mathematics, 1481 (Springer, Berlin, 1991). | MR | Zbl

[2] H. Martini, A contribution to the light field theory, Beitr. Algebra Geom., 30 (1990), pp. 193-201. | MR | Zbl

[3] A. Miernowski - W. Mozgawa, On some geometric condition for the convexity of isoptics, Rend. Sem. Mat. Univ. Pol. Torino, 55, no. 2 (1997), pp. 93-98. | MR | Zbl

[4] W. Mozgawa, On billiards and Poncelet's porism, Rend. Semin. Mat. Univ. Padova, 120 (2008), pp. 157-166. | Numdam | MR | Zbl

[5] W. Mozgawa, Integral formulas related to ovals, Beitr. Algebra Geom., 50 (2009), pp. 555-561. | MR | Zbl

[6] G. Weiss - H. Martini, On curves and surfaces in illumination geometry, J. Geom. Graphics, 4 (2000), pp. 169-180. | MR | Zbl