src/main/java/ru/ulstu/user/model/User.java

@@ -192,7 +192,7 @@ public class User extends BaseEntity {
     public String getUserAbbreviate() {
         return String.format(USER_ABBREVIATE_TEMPLATE,
                 lastName == null ? "" : lastName,
-                firstName == null ? "" : firstName.substring(0, 1),
-                patronymic == null ? "" : patronymic.substring(0, 1));
+                firstName == null ? "" : firstName.substring(0, 1) + ".",
+                patronymic == null ? "" : patronymic.substring(0, 1) + ".");
     }
 }