Deprecated: Return type of WP_Theme::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-includes/class-wp-theme.php on line 554 Deprecated: Return type of WP_Theme::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-includes/class-wp-theme.php on line 595 Deprecated: Return type of WP_Theme::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-includes/class-wp-theme.php on line 535 Deprecated: Return type of WP_Theme::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-includes/class-wp-theme.php on line 544 Deprecated: Return type of WP_REST_Request::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-includes/rest-api/class-wp-rest-request.php on line 952 Deprecated: Return type of WP_REST_Request::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-includes/rest-api/class-wp-rest-request.php on line 972 Deprecated: Return type of WP_REST_Request::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-includes/rest-api/class-wp-rest-request.php on line 984 Deprecated: Return type of WP_REST_Request::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-includes/rest-api/class-wp-rest-request.php on line 995 Deprecated: Return type of WP_Block_List::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-includes/class-wp-block-list.php on line 151 Deprecated: Return type of WP_Block_List::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-includes/class-wp-block-list.php on line 175 Deprecated: Return type of WP_Block_List::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-includes/class-wp-block-list.php on line 164 Deprecated: Return type of WP_Block_List::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-includes/class-wp-block-list.php on line 186 Deprecated: Return type of WP_Block_List::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-includes/class-wp-block-list.php on line 138 Deprecated: Return type of WP_Block_List::offsetExists($index) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-includes/class-wp-block-list.php on line 75 Deprecated: Return type of WP_Block_List::offsetGet($index) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-includes/class-wp-block-list.php on line 89 Deprecated: Return type of WP_Block_List::offsetSet($index, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-includes/class-wp-block-list.php on line 110 Deprecated: Return type of WP_Block_List::offsetUnset($index) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-includes/class-wp-block-list.php on line 127 Deprecated: Return type of WP_Block_List::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-includes/class-wp-block-list.php on line 199 Deprecated: Return type of WPCF7_FormTag::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-content/plugins/contact-form-7/includes/form-tag.php on line 395 Deprecated: Return type of WPCF7_FormTag::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-content/plugins/contact-form-7/includes/form-tag.php on line 387 Deprecated: Return type of WPCF7_FormTag::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-content/plugins/contact-form-7/includes/form-tag.php on line 381 Deprecated: Return type of WPCF7_FormTag::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-content/plugins/contact-form-7/includes/form-tag.php on line 399 Deprecated: Optional parameter $update_last_requested declared before required parameter $upload_url is implicitly treated as a required parameter in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-content/plugins/instagram-feed/inc/class-sb-instagram-post.php on line 345 Deprecated: Optional parameter $transient_name declared before required parameter $upload_url is implicitly treated as a required parameter in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-content/plugins/instagram-feed/inc/class-sb-instagram-post.php on line 345 Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /customers/6/1/9/cs6po6o2g/webroots/r1074605/wp-includes/class-wp.php on line 173
Professor, Senior Faculty
Mobile: +47 91 80 34 48
Office: +47 73 59 10 29
E-mail: roger.sorheim@iot.ntnu.no
Professor, Senior Faculty
Mobile: +47 41 21 55 84
Office: +47 73 59 36 09
E-mail: oystein.widding@iot.ntnu.no