We obtain new closedness conditions for linear images and vector sums of sets in finite-dimensional vector spaces and illustrate their relations with the existing results on the subject. These new conditions use the concept of asymptotic plane and are applicable to the case of arbitrary (not only convex) sets.

Contact details are reproduced from the original publication and may be historical.

Valeriu Soltan

Dept. of Mathematical Sciences, George Mason University, 4400 University Drive, Fairfax, VA 22030, U.S.A.

vsoltan@gmu.edu
  1. A. Auslender, P. Coutat: On closed convex sets without boundary rays and asymptotes, Set-Valued Anal. 2 (1994) 19–33.https://doi.org/10.1007/BF01027090Google Scholar
  2. A. Auslender, M. Teboulle: Asymptotic Cones and Functions in Optimization and Variational Inequalities, Springer, New York (2003).Google Scholar
  3. J. M. Borwein, W. B. Moors: Stability of closedness of convex cones under linear mappings, J. Convex Analysis 16 (2009) 699–705.https://doi.org/10.68381/jca16041Google Scholar
  4. J. M. Borwein, W. B. Moors: Stability of closedness of convex cones under linear mappings II, J. Nonlinear Anal. Optim. 1 (2010) 1–7.Google Scholar
  5. J.-P. Dedieu: Cône asymptote d’un ensemble non convexe. Application à l’optimisation, C. R. Acad. Sci. Paris Sér. A-B 285 (1977) A501–A503.Google Scholar
  6. J.-P. Dedieu: Critères de fermeture pour l’image d’un fermé non convexe par une multiapplication, C. R. Acad. Sci. Paris Sér. A-B 287 (1978) A941–A943.Google Scholar
  7. D. Gale, V. Klee: Continuous convex sets, Math. Scand. 7 (1959) 379–391.https://doi.org/10.7146/math.scand.a-10585Google Scholar
  8. V. Klee: Asymptotes and projections of convex sets, Math. Scand. 8 (1960) 356–362.https://doi.org/10.7146/math.scand.a-10617Google Scholar
  9. J. Lawrence, V. Soltan: On unions and intersections of nested families of cones, Beitr. Algebra Geom. 57 (2016) 655–665.https://doi.org/10.1007/s13366-016-0285-7Google Scholar
  10. G. Pataki: On the closedness of the linear image of a closed convex cone, Math. Oper. Res. 32 (2007) 395–412.https://doi.org/10.1287/moor.1060.0242Google Scholar
  11. R. T. Rockafellar: Convex Analysis, Princeton Universty Press, Princeton (1970).https://doi.org/10.1515/9781400873173Google Scholar
  12. V. Soltan: Lectures on Convex Sets, World Scientific, Hackensack (2015).https://doi.org/10.1142/9508Google Scholar
  13. M. Ujvári: On a closedness theorem, Pure Math. Appl. 15 (2004) 469–486.Google Scholar
  14. M. Ujvári: On closedness conditions, strong separation, and convex duality, Acta Cybernet. 21 (2013) 273–285.https://doi.org/10.14232/actacyb.21.2.2013.5Google Scholar

V. Soltan. “Asymptotic Planes and Closedness Conditions for Linear Images and Vector Sums of Sets.” Journal of Convex Analysis 25 (2018), No. 4, 1183–1196. https://doi.org/10.68381/jca25074