### Formalization of Nested Relational Tensors
#### Core Tensor Representation:
```
T = (S, t, A, R)
```
Where:
- **S**: A set of Spheres of Relation (e.g., physical, emotional, social, intellectual, etc.)
- **t**: Time of Relation (a timestamp or temporal interval)
- **A**: A set of Relation attributes (e.g., Strength, Hierarchy, Influence, Direction, Distance, etc.)
- **R**: A multidimensional array or adjacency matrix representing relationships between entities within the Spheres of Relation.
#### Nesting:
A higher-order tensor can encapsulate several lower-order tensors. This represents complex hierarchical or multi-layered relations within and across Spheres of Relation.
**Example**: A tensor representing a family could nest tensors representing individuals, with sub-tensors capturing pairwise relationships (parent-child, siblings, etc.)
#### Tensor Attributes (A):
- **Strength (StOr)**: A measure of the intensity or magnitude of a relation.
- **Hierarchy (HNoR)**: Represents dominance or power differentials within a relation.
- **Influence (IOR)**: Denotes the degree to which one entity impacts another within a relation.
- **Direction (DOR)**: Specifies the flow of the relation and the 'Origin of Relation' (from, to, self, or bi-directional).
- **Distance (DstOR)**: Spatial, temporal, or abstract distance between related entities.
- **Time (TOR)**: Timestamp or interval denoting the start, end, and duration of the relation.
- **Context (CFR)**: Encapsulates environmental, situational, or social factors shaping the relation.
- ... Additional attributes can be added as needed for your specific framework.
#### Tensor Operations
1. **Distance of Relation**
**Metrics**: Euclidean Distance, Hamming Distance, Graph-based distances (shortest path), or customized metrics accounting for attribute weights and nested structures.
**Formula Example (Euclidean-like)**:
```
dist(T1, T2) = √Σ [(A1i - A2i)^2 * wi]
```
Where:
- **T1, T2**: Tensors
- **A1i, A2i**: Corresponding attributes
- **wi**: weight of attribute i
2. **Influence Calculation**
**Influence Matrix**: Represents influences between entities as a matrix (M).
**Influence Propagation**:
```
Influence(T1, T2) = T1 * M
```
Where:
- **T1** is the source tensor, and **M** is the influence matrix.
3. **Adding/Removing Dimensions**
**Adding**:
- Extending the Sphere of Relation set (S) by introducing a new dimension.
- Achieved through tensor products or by expanding the attribute set (A)
**Removing**:
- Projection onto a subset of Spheres of Relation.
- Focusing on a subset of attributes in A.
4. **Temporal Transformation**
**Delta Calculation**:
```
Delta(T, t1, t2) = T|_{t2} - T|_{t1}
```
Where:
- **T|_{t1}** and **T|_{t2}** represent the states of the tensor at times t1 and t2, respectively.
**Trend Analysis**:
```
Trend(T, time_interval)
```
Analyzes trends in attributes and relations over an interval. Can involve statistical measures or time-series analysis techniques.
This formalization provides a robust framework for representing and analyzing complex, multi-dimensional relationships across various domains. The flexibility of adding or modifying attributes and operations allows NRTs to adapt to evolving research areas and practical applications where complex relational dynamics are pivotal.