Imports
/- Copyright (c) 2025 Joseph Tooby-Smith. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joseph Tooby-Smith -/ module public import Mathlib.Analysis.Distribution.SchwartzSpace.Basic public import Mathlib.Analysis.Calculus.ContDiff.Bounds

The multiple of a Schwartz map by x

In this module we define the continuous linear map from the Schwartz space 𝓢(ℝ, 𝕜) to itself which takes a Schwartz map η to the Schwartz map x * η.

@[expose] public section𝕜:Typeinst✝:RCLike 𝕜x:i:n:h:fderiv RCLike.ofRealCLM = fun x => RCLike.ofRealCLM0 x = if n + 2 = 0 then |x| else if n + 2 = 1 then 1 else 0 All goals completed! 🐙

The continuous linear map 𝓢(ℝ, 𝕜) →L[𝕜] 𝓢(ℝ, 𝕜) taking a Schwartz map η to x * η.

set_option backward.isDefEq.respectTransparency false in𝕜:TypeE:TypeF:Typeinst✝³:RCLike 𝕜inst✝²:NormedAddCommGroup Einst✝¹:NormedAddCommGroup Finst✝:NormedSpace Ek:n✝:ψ:𝓢(, 𝕜)x:n:h1:(SchwartzMap.seminorm 𝕜 k n) ψ (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ(n + 1) * (SchwartzMap.seminorm 𝕜 k n) ψ + (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ (n + 1 + 1) * (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ 𝕜:TypeE:TypeF:Typeinst✝³:RCLike 𝕜inst✝²:NormedAddCommGroup Einst✝¹:NormedAddCommGroup Finst✝:NormedSpace Ek:n✝:ψ:𝓢(, 𝕜)x:n:h1:(SchwartzMap.seminorm 𝕜 k n) ψ (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ(n + 1) * (SchwartzMap.seminorm 𝕜 k n) ψ + (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ (n + 1) * (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ + (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ𝕜:TypeE:TypeF:Typeinst✝³:RCLike 𝕜inst✝²:NormedAddCommGroup Einst✝¹:NormedAddCommGroup Finst✝:NormedSpace Ek:n✝:ψ:𝓢(, 𝕜)x:n:h1:(SchwartzMap.seminorm 𝕜 k n) ψ (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ(n + 1) * (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ + (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ (n + 1 + 1) * (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ 𝕜:TypeE:TypeF:Typeinst✝³:RCLike 𝕜inst✝²:NormedAddCommGroup Einst✝¹:NormedAddCommGroup Finst✝:NormedSpace Ek:n✝:ψ:𝓢(, 𝕜)x:n:h1:(SchwartzMap.seminorm 𝕜 k n) ψ (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ(n + 1) * (SchwartzMap.seminorm 𝕜 k n) ψ + (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ (n + 1) * (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ + (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ 𝕜:TypeE:TypeF:Typeinst✝³:RCLike 𝕜inst✝²:NormedAddCommGroup Einst✝¹:NormedAddCommGroup Finst✝:NormedSpace Ek:n✝:ψ:𝓢(, 𝕜)x:n:h1:(SchwartzMap.seminorm 𝕜 k n) ψ (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ(n + 1) * (SchwartzMap.seminorm 𝕜 k n) ψ (n + 1) * (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ𝕜:TypeE:TypeF:Typeinst✝³:RCLike 𝕜inst✝²:NormedAddCommGroup Einst✝¹:NormedAddCommGroup Finst✝:NormedSpace Ek:n✝:ψ:𝓢(, 𝕜)x:n:h1:(SchwartzMap.seminorm 𝕜 k n) ψ (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ(SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ 𝕜:TypeE:TypeF:Typeinst✝³:RCLike 𝕜inst✝²:NormedAddCommGroup Einst✝¹:NormedAddCommGroup Finst✝:NormedSpace Ek:n✝:ψ:𝓢(, 𝕜)x:n:h1:(SchwartzMap.seminorm 𝕜 k n) ψ (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ(n + 1) * (SchwartzMap.seminorm 𝕜 k n) ψ (n + 1) * (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ 𝕜:TypeE:TypeF:Typeinst✝³:RCLike 𝕜inst✝²:NormedAddCommGroup Einst✝¹:NormedAddCommGroup Finst✝:NormedSpace Ek:n✝:ψ:𝓢(, 𝕜)x:n:h1:(SchwartzMap.seminorm 𝕜 k n) ψ (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ0 n + 1𝕜:TypeE:TypeF:Typeinst✝³:RCLike 𝕜inst✝²:NormedAddCommGroup Einst✝¹:NormedAddCommGroup Finst✝:NormedSpace Ek:n✝:ψ:𝓢(, 𝕜)x:n:h1:(SchwartzMap.seminorm 𝕜 k n) ψ (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ(SchwartzMap.seminorm 𝕜 k n) ψ (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ 𝕜:TypeE:TypeF:Typeinst✝³:RCLike 𝕜inst✝²:NormedAddCommGroup Einst✝¹:NormedAddCommGroup Finst✝:NormedSpace Ek:n✝:ψ:𝓢(, 𝕜)x:n:h1:(SchwartzMap.seminorm 𝕜 k n) ψ (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ0 n + 1 All goals completed! 🐙 𝕜:TypeE:TypeF:Typeinst✝³:RCLike 𝕜inst✝²:NormedAddCommGroup Einst✝¹:NormedAddCommGroup Finst✝:NormedSpace Ek:n✝:ψ:𝓢(, 𝕜)x:n:h1:(SchwartzMap.seminorm 𝕜 k n) ψ (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ(SchwartzMap.seminorm 𝕜 k n) ψ (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ All goals completed! 🐙 𝕜:TypeE:TypeF:Typeinst✝³:RCLike 𝕜inst✝²:NormedAddCommGroup Einst✝¹:NormedAddCommGroup Finst✝:NormedSpace Ek:n✝:ψ:𝓢(, 𝕜)x:n:h1:(SchwartzMap.seminorm 𝕜 k n) ψ (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ(SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ All goals completed! 🐙 𝕜:TypeE:TypeF:Typeinst✝³:RCLike 𝕜inst✝²:NormedAddCommGroup Einst✝¹:NormedAddCommGroup Finst✝:NormedSpace Ek:n✝:ψ:𝓢(, 𝕜)x:n:h1:(SchwartzMap.seminorm 𝕜 k n) ψ (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ(n + 1) * (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ + (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ (n + 1 + 1) * (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ 𝕜:TypeE:TypeF:Typeinst✝³:RCLike 𝕜inst✝²:NormedAddCommGroup Einst✝¹:NormedAddCommGroup Finst✝:NormedSpace Ek:n✝:ψ:𝓢(, 𝕜)x:n:h1:(SchwartzMap.seminorm 𝕜 k n) ψ (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ(n + 1) * (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ + (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ = (n + 1 + 1) * (SchwartzMap.seminorm 𝕜 (k + 1) (n + 1)) ψ All goals completed! 🐙
lemma powOneMul_apply (ψ : 𝓢(, 𝕜)) (x : ) : powOneMul 𝕜 ψ x = x * ψ x := rfl