@misc{10481/84240, year = {2023}, month = {7}, url = {https://hdl.handle.net/10481/84240}, abstract = {We prove that, given two Banach spaces X and Y and bounded, closed convex sets C ⊆ X and D ⊆ Y , if a nonzero element z ∈ co(C ⊗ D) ⊆ X ⊗πY is a preserved extreme point then z = x0 ⊗ y0 for some preserved extreme points x0 ∈ C and y0 ∈ D, whenever K(X, Y ∗ ) separates points of X ⊗πY (in particular, whenever X or Y has the compact approximation property). Moreover, we prove that if x0 ∈ C and y0 ∈ D are weak-strongly exposed points then x0 ⊗ y0 is weak-strongly exposed in co(C ⊗D) whenever x0 ⊗y0 has a neighbourhood system for the weak topology defined by compact operators. Furthermore, we find a Banach space X isomorphic to 2 with a weak-strongly exposed point x0 ∈ BX such that x0 ⊗x0 is not a weak-strongly exposed point of the unit ball of X ⊗πX.}, organization = {Agencia Estatal de Investigación}, organization = {EDRF/FEDER "A way of making Europe" (MCIN/AEI) PID2021-122126NB-C32 PID2021-122126NB-C31}, organization = {Fundacion Seneca 21955/PI/22}, organization = {DGA project E48-23R}, organization = {MICINN 2018 FPI fellowship PRE2018-083703}, publisher = {Springer Nature}, keywords = {Banach space}, keywords = {Projective tensor product}, keywords = {Preserved extreme point}, keywords = {Strongly exposed point}, title = {Extremal Structure of Projective Tensor Products}, doi = {10.1007/s00025-023-01970-y}, author = {García Lirola, Luis and Rueda Zoca, Abraham}, }