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Hi guys,
I've been trying to solve the following problem:
![immagine](https://user-images.githubusercontent.com/8025529/122951902-eddd2d00-d37d-11eb-8662-6b50bb0d7ac7.png)
where
![immagine](https:…
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### Describe your issue.
For a 3x3 matrix A I want to find its **sorted real** Schur form T ((quasi-)upper-triangular matrix) and the corresponding unitary Schur transformation matrix Z. I want th…
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### Description of the enhancement or error report
Currently in NEWTON solves the Jacobian and preconditioning matrices are the same. It would be nice to be able to select pieces of the Jacobian to…
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Similarly as CouplingSequentialBase, create a base class CouplingIterativeBase to allow iterations between processes within one computational time step. Required for poroelasticity.
Then just imple…
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This issue is exploration into accelerating the eigensolver part of the linear method.
See #3633 for the umbrella issue with scaling the linear method with respect to the number of parameters.
The…
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### Information
- **Qiskit Terra version**: 0.18.3
- **Python version**: 3.8.10
- **Operating system**: IBM Quantum Lab
### What is the current behavior?
When transpiling a certain tw…
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### 🚀 The feature, motivation and pitch
I had been working on complex-valued variational auto encoders (CVAE) and for this purpose I required complex-valued Gaussian distributions. I coded my own imp…
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Writing my own sort callables with the schur function it seemed that complex eigenvalues `complex(a,b)` don't get passed to the sort callable via `callable(complex(a,b))` but rather as `callable(a…
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This issue has been reported in the Debian build of blis and scipy, https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1003877
Debian runs CI testing of packages. The test for blis and scipy are log…
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### 🐛 Describe the bug
```python
transform = T.Compose([T.RemoveIsolatedNodes() ,T.AddSelfLoops(), T.AddRandomWalkPE(20,attr_name='x'), T.ToSparseTensor()])
```
T.AddRandomWalkPE() transform wor…