What are the three geometric isomers of dibenzalacetone?

Dibenzalacetone has three geometric isomers:

cis,cis-isomer: In this isomer, both benzaldehyde groups are on the same side of the C=C double bond in the central acetone unit.

trans,trans-isomer: Here, both benzaldehyde groups are on opposite sides of the C=C double bond in the central acetone unit.

cis,trans-isomer: In this isomer, one benzaldehyde group is on the same side as one other benzaldehyde group, while the other benzaldehyde group is on the opposite side of the C=C double bond in the central acetone unit.

These geometric isomers arise due to the restricted rotation around the C=C double bond in the central acetone unit, leading to different spatial arrangements of the benzaldehyde groups.