Source-pinned research

Research proof index

Search theorem names, mathematical ideas, modules, topics, projects, and role-labelled researchers. Open a result for its complete indexed Lean declaration and source record.

This index contains 591 research declarations. Search 10,000 more complete Mathlib declarations.

1 topic

591 results

Clear filters
Project-declaredLean 4.32.0

Mul Operator has Dense Domain

QuantumMechanics.SpaceDHilbertSpace.mulOperator_hasDenseDomain

Plain-language statement

The multiplication operator corresponding to a μ-a.e. strongly measurable function is densely defined.

physicsquantum field theoryrelativity

Source project: Physlib

Person-level attribution pending.

View proof record
Project-declaredLean 4.32.0

Mul Operator smul ge

QuantumMechanics.SpaceDHilbertSpace.mulOperator_smul_ge

Plain-language statement

Scalar multiplication and mulOperator commute except possibly for c = 0 where the domains of 0 • 𝓜 μ f and 𝓜 μ 0 = 0 may not agree. See mulOperator_smul_eq for equality when c ≠ 0.

physicsquantum field theoryrelativity

Source project: Physlib

Person-level attribution pending.

View proof record
Project-declaredLean 4.32.0

Zero eq top

QuantumMechanics.SpaceDHilbertSpace.SchwartzSubmodule.zero_eq_top

Project documentation

The linear equivalence between the Schwartz maps 𝓢(Space d, ℂ) and the Schwartz submodule of SpaceDHilbertSpace d μ. -/ def schwartzEquiv {d : ℕ} (μ : Measure (Space d)) [μ.HasTemperateGrowth] [μ.IsOpenPosMeasure] : 𝓢(Space d, ℂ) ≃ₗ[ℂ] SchwartzSubmodule d μ := LinearEquiv.ofInjective (schwartzIncl μ).toLinearMap (injective_toLp 2 μ) namespace Schwar...

physicsquantum field theoryrelativity

Source project: Physlib

Person-level attribution pending.

View proof record
Project-declaredLean 4.32.0

Co Metric repr apply eq minkowski Matrix

realLorentzTensor.coMetric_repr_apply_eq_minkowskiMatrix

Project documentation

The tensor contrMetric is invariant under the action of LorentzGroup d. -/ @[simp] lemma actionT_contrMetric {d} (g : LorentzGroup d) : g • η d = η d := by erw [TensorSpecies.metricTensor_invariant] /- ## There value with respect to a basis

physicsquantum field theoryrelativity

Source project: Physlib

Person-level attribution pending.

View proof record
Project-declaredLean 4.32.0

Contr T to Complex

realLorentzTensor.contrT_toComplex

Plain-language statement

The map toComplex commutes with contrT.

physicsquantum field theoryrelativity

Source project: Physlib

Person-level attribution pending.

View proof record
Project-declaredLean 4.32.0

Eval T to Complex

realLorentzTensor.evalT_toComplex

Plain-language statement

The map toComplex commutes with evalT.

physicsquantum field theoryrelativity

Source project: Physlib

Person-level attribution pending.

View proof record